Spatial distribution of sedentary behavior and unhealthy eating habits in Belo Horizonte, Brazil: the role of the neighborhood environment

Distribuição espacial do comportamento sedentário e do hábito alimentar não saudável em Belo Horizonte, Brasil: o papel do ambiente da vizinhança

Crizian Saar Gomes Larissa Loures Mendes Maria Alice Vieira Marcelo Azevedo Costa Gustavo Velasquez Melendez About the authors

Abstract

The study aimed to analyze the spatial distribution of sedentary behavior and unhealthy eating habits, and to assess its relationship with the neighborhood environment. Cross-sectional study with data of Surveillance System of Risk and Protective Factors for Chronic Diseases, carried out in Belo Horizonte, Minas Gerais. Watching television for four hours or more per day was identified as sedentary behavior. Unhealthy eating habits were defined based on regular consumption of sodas, excess fat meat, and red meat, and irregular consumption of fruits and vegetables. Georeferenced data of places for physical activity, food establishments, population and residential density, homicide rate, mean total income, and social vulnerability index were entered into the Vigitel database. The coverage area by basic health units was used as the geographical unit of neighborhood. SaTScan was used to analyze the spatial distribution. Spatial analysis identified a significant cluster of high prevalence of sedentary behavior and unhealthy eating habits, after adjusting for sociodemographic characteristics. The comparison of environmental characteristics inside and outside clusters showed significant differences in the physical and social environment. Physical and social environment might be related to clusters of high prevalence of sedentary behavior and unhealthy eating habits.

Key words:
Sedentary behavior; Feeding behavior; Spatial analysis; Environment and public health

Resumo

O objetivo foi analisar a distribuição espacial do comportamento sedentário e do hábito alimentar não saudável e verificar a relação com o ambiente da vizinhança. Estudo transversal com dados do Sistema de Vigilância de fatores de risco e proteção para doenças crônicas, realizado em Belo Horizonte, Minas Gerais. Considerou-se comportamento sedentário o hábito de assistir televisão quatro ou mais horas por dia. O hábito alimentar não saudável foi avaliado pelo consumo regular de carne com excesso de gordura, refrigerante e carne vermelha e irregular de frutas e hortaliças. Informações georreferenciadas dos locais para a prática de atividade física, estabelecimentos com venda de alimentos, densidade populacional e residencial, taxa de homicídio, renda e índice de vulnerabilidade social foram inseridas na base do Vigitel. A área de abrangência da unidade básica de saúde foi usada como unidade geográfica da vizinhança. A análise espacial identificou cluster significativo de alta prevalência de comportamento sedentário e hábito alimentar não saudável, mesmo após ajuste. Os ambientes físico e social podem estar relacionados a cluster de alta prevalência de comportamento sedentário e hábito alimentar não saudável.

Palavras-chave:
Comportamento sedentário; Hábito alimentar; Análise espacial; Ambiente e saúde pública

Introduction

Sedentary behavior (SB) and unhealthy eating habits stand out as important risk factors for chronic noncommunicable diseases (NCDs). Therefore, they are directly related to the increase in morbidity and mortality in Brazil and worldwide11 Abete I, Romaguera D, Vieira AR, Lopez de Munain A, Norat T. Association between total, processed, red and white meat consumption and all-cause, CVD and IHD mortality: a meta-analysis of cohort studies. Br J Nutr 2014; 112(5):762-75.

2 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.

3 Ekelund U, Steene-Johannessen J, Brown WJ, Fagerland MW, Owen N, Powell KE, Bauman A, Lee I- M. Lancet Physical Activity Series 2 Executive Committe; Lancet Sedentary Behaviour Working Group. Does physical activity attenuate, or even eliminate, the detrimental association of sitting time with mortality? A harmonised meta-analysis of data from more than 1 million men and women. Lancet 2016; 388(10051):1302-1310.

4 Institute for Health Metrics and Evaluation (IHME). GBD Compare | IHME Viz Hub 2019. [cited 2020 nov 20]. Available from: https://vizhub.healthdata.org/gbd-compare/.
https://vizhub.healthdata.org/gbd-compar...
-55 Willett WC, Stampfer MJ. Current evidence on healthy eating. Annu Rev Public Health 2013; 34:77-95..

Several factors may cause individuals to engage in SB and having unhealthy eating habits. Ecological determination models recognize these behaviors as multifactorial and do not hold individuals solely responsible, thus highlighting the importance of the neighborhood environment in health outcomes. The context of individuals are inserted, such as their place of residence, neighborhood and workplace, is an important determinant of health, since it has characteristics which may facilitate or prevent the adoption of healthy habits66 Glanz K, Sallis JF, Saelens BE, Frank LD. Healthy nutrition environments: concepts and measures. Am J Health Promot 2005; 19(5):330-333.

7 Owen N, Healy GN, Matthews CE, Dunstan DW. Too much sitting: the population health science of sedentary behavior. Exerc Sport Sci Rev 2010; 38(3):105-113.

8 Rhodes RE, Mark RS, Temmel CP. Adult sedentary behavior: a systematic review. Am J Prev Med 2012; 42(3):e3-28.
-99 Story M, Kaphingst KM, Robinson-O'Brien R, Glanz K. Creating healthy food and eating environments: policy and environmental approaches. Annu Rev Public Health 2008; 29:253-272.. It is noteworthy that television viewing time is widely used as an indicator of SB.

Although a recent topic in health research, some studies report geographical differences in the prevalence of diseases/behavior, even on a local scale. Additionally, individuals who live close to each other have similar environmental characteristics, which could explain these geographical differences1010 Brown P, Jiang H, Ezzat S, Sawka AM. A detailed spatial analysis on contrasting cancer incidence patterns in thyroid and lung cancer in Toronto women. BMC Public Health 2016; 16(1):950.

11 Caswell J. Exploring spatial trends in Canadian incidence of hospitalization due to myocardial infarction with additional determinants of health. Public Health 2016; 140:136-143.

12 Du Q, Zhang M, Li Y, Luan H, Liang S, Ren F. Spatial Patterns of Ischemic Heart Disease in Shenzhen, China: A Bayesian Multi-Disease Modelling Approach to Inform Health Planning Policies. Int J Environ Res Public Health 2016; 13(4):436.
-1313 Christman Z, Pruchno R, Cromley E, Wilson-Genderson M, Mir I. A Spatial Analysis of Body Mass Index and Neighborhood Factors in Community-Dwelling Older Men and Women. Int J Aging Hum Dev 2016; 83(1):3-25..

Therefore, spatial analysis techniques have emerged as an innovative way to investigate the role of environment as a contextual risk factor for disease development, to investigate spatial patterns of diseases, to identify areas of high risk and to better understand geographical patterns to guide and foster further studies for designing public health research and interventions. Recent studies evaluated physical activity, tobacco smoking, and obesity1414 Huang L, Stinchcomb D, Pickle L, Dill J, Berrigan D. Identifying Clusters of Active Transportation Using Spatial Scan Statistics. Am J Prev Med 2009; 37(2):157-166.

15 Matozinhos F, Meléndez G, Pessoa M, Mendes L, Gomes C, Costa M. Distribuição espacial da obesidade em área urbana no Brasil. Cien Saude Colet 2015; 20(9):2779-2786.

16 Menezes MC, Costa BVL, Oliveira CDL, Lopes ACS. Local food environment and fruit and vegetable consumption: an ecological study. Prev Med Rep 2017; 5:13-20.
-1717 Mylona EK, Shehadeh F, Fleury E, Kalligeros M, Mylonakis E. Neighborhood-level analysis on the impact of accessibility to fast food and open green spaces on the prevalence of obesity. Am J Med 2020; 133(3):340-346. as risk/protective behaviors for disease. Collectively, these results provide evidence that the place of residence plays a key role in disease and lifestyle.

However, studies on this subject are scarce and are restricted to specific populations, or high-income countries. Therefore, the scope for generalizing these findings is unclear, especially among countries undergoing an intense social, economic, epidemiological, and nutritional transition, such as Brazil. In addition, most studies report limitations in the use of environmental variables and spatial data using relatively large spatial units, such as states and countries. Furthermore, studies on eating habits primarily assess the consumption of nutrients or isolated foods, such as fruit and vegetable consumption. However, multidimensional dietary assessment is important and necessary, since combining foods, nutrients, and other food constituents is beneficial for disease prevention. Moreover, few studies adjust for potential confounders and assess the differences in environmental characteristics inside and outside spatial clusters.

Thus, this study aimed to analyze the spatial distribution of sedentary behavior and unhealthy eating habits, and to assess its relationship with the neighborhood environment.

Method

Participants

This cross-sectional study included the Surveillance System of Risk and Protective Factors for Chronic Diseases by Telephone Survey (Vigitel) data collected from 2008 to 2010 in the city of Belo Horizonte, Minas Gerais.

Since 2006, the Vigitel system has used telephonic interviews to estimate the prevalence of risk and protective factors for NCDs among adults living in the capitals of 26 Brazilian states and of the Federal District. The system collects data on demographic and socioeconomic characteristics of individuals, including age, sex, marital status, race/color, education level, number of household members, number of adults, and number of telephone landlines; characteristics of eating patterns and physical activity; self-reported weight and height; tobacco smoking and alcohol consumption; and self-reported health status and prior medical diagnosis of hypertension, diabetes, and dyslipidemia. Detailed information regarding the Vigitel system has been reported previously1818 Ministério da Saúde (MS). Secretaria de Vigilância em Saúde. Secretaria de Gestão Estratégica e Participativa. Vigitel Brasil 2010: Vigilância de fatores de risco e proteção para doenças crônicas por inquérito telefônico. Brasília: MS; 2011..

Sedentary behavior

The time, in hours, spent watching television (TV) per day, was used as an indicator proxy of sedentary behavior and it was based on the answers to the following question: “On average, how many hours a day do you spend watching television?”. Watching television for four hours or more per day was identified as SB1919 Sun JW, Zhao LG, Yang Y, Ma X, Wang YY, Xiang YB. Association Between Television Viewing Time and All-Cause Mortality: A Meta-Analysis of Cohort Studies. Am J Epidemiol 2015; 182(11):908-916.. The cut-off point was adopted based on the results of a specific meta-analysis for the domain TV time and mortality from all causes which revealed a significant increase in mortality from 4 hours daily time TV1919 Sun JW, Zhao LG, Yang Y, Ma X, Wang YY, Xiang YB. Association Between Television Viewing Time and All-Cause Mortality: A Meta-Analysis of Cohort Studies. Am J Epidemiol 2015; 182(11):908-916..

Unhealthy eating habits

Unhealthy eating habits were assessed based on a diet score, derived by principal component analysis (PCA). The following variables were used to construct the score:

Consumption of excess fat meat: Consumption of meat with apparent fat or chicken with skin. Consumption of excess fat meat was considered the positive answer to the question: When you eat red meat with fat, do you usually eat the fat? or When you eat chicken with skin, do you usually eat the skin?;

Regular consumption of soda: Consumption of soda on five or more days a week. For the composition of this indicator, the answers Five to six days a week and Every day (including Saturday and Sunday) were considered for the question: How many days of the week do you usually drink soda? or artificial juice?, regardless of quantity and type.

Regular consumption of red meat consumption: Consumption of red meat five or more days a week. For the composition of this indicator, the answers Five to six days a week and Every day (including Saturday and Sunday) were considered for the question: On how many days of the week do you usually eat? red meat (beef, pork, kid)?

Irregular consumption of fruits and vegetables: Consumption of fruits and vegetables in less than five days per week, estimated from the questions: How many days of the week do you usually eat fruits?, How many days of the week do you usually drink natural fruit juice? and How many days of the week do you usually eat at least one type of vegetable or legume (lettuce, tomato, cabbage, carrot, chayote, eggplant, zucchini - not worth potatoes, manioc or yams)?

The diet score derived by PCA reported an eigenvalue of 1.43, accounting for 36% of the variance in the four variables, and the factorial load ranged from 0.47 to 0.53. The mean diet score was 0.13 (standard error of the mean (SEM) = 0.018), ranging from -1.67 to 2.57, with high scores characterized as unhealthy consumption. Scores in the fourth quartile (≥ 0.61) indicated as a category of unhealthy eating habits2020 Janssen I, Boyce W, Simpson K, Pickett W. Influence of individual- and area-level measures of socioeconomic status on obesity, unhealthy eating, and physical inactivity in Canadian adolescents. Am J Clin Nutr 2006; 83(1):139-145..

Neighborhood environment

For the purposes of this study, the geographical unit representing neighborhood unit was the coverage area by basic health units (CABHU). Belo Horizonte has 148 BHUs. The geographical position of a participant’s home was determined using the ZIP code.

Neighborhood environment characteristics were geocoded based on the full address of the sites, available from various commercial and government sources and merged in the database of the Vigitel system. The following environmental features were selected in this study:

  1. 1) Population density: population of the coverage area/area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.), provided by the Brazilian Institute of Geography and Statistics - IBGE;

  2. 2) Residential density: Number of households of the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area, provided by the IBGE;

  3. 3) Density of establishments predominantly selling healthy food: number of butcher shops, fish shops, produce markets, dairy stores, and hortifruti in the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area, provided by the National Classification of Economic Activities - CNAE. These establishments were considered healthy since they predominantly sell in nature or minimally processed foods, including fruits and vegetables.

  4. 4) Density of establishments predominantly selling unhealthy food: number of establishments selling sweets, candies, chocolates and the like, snack bars, bars, street vendors, department stores, and minimarkets in the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area , provided by the CNAE. These establishments were categorized as unhealthy because they predominantly sell ultra-processed foods like hamburgers, hot dogs, pasta, pizza and candies.

  5. 5) Density of establishments selling mixed foods: number of hypermarkets, supermarkets, restaurants, and bakeries in the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area, provided by the CNAE. These establishments were categorized as mixed because they sell both healthy and unhealthy foods.

  6. 6) Density of places for physical activity: number of public parks, squares and running tracks, city gyms, sports and dance schools, and fitness centers and social sports clubs in the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area, provided by the Municipal Health Secretariat/Information and Informatics Company of the City of Belo Horizonte- SMS/PRODABEL;

  7. 7) Density of private places for physical activity: number of sports and dance schools, and fitness centers and social sports clubs in the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area, provided by the SMS/PRODABEL;

  8. 8) Density of public places for physical activity: number of public parks, squares, running tracks, and city gyms in the coverage area/ area (km22 Biswas A, Oh PI, Faulkner GE, Bajaj RR, Silver MA, Mitchell MS, Alter DA. Sedentary time and its association with risk for disease incidence, mortality, and hospitalization in adults: a systematic review and meta-analysis. Ann Intern Med 2015; 162(2):123-132.) of the coverage area, provided by the SMS/PRODABEL;

  9. 9) Homicide rate: number of homicide cases in the coverage area/ coverage area population x 10000), provided by the Military Police of Minas Gerais;

  10. 10) Mean Family Income: total income of people aged 10 years or older of the coverage area, provided by the IBGE; and

  11. 11) Health Vulnerability Index: health vulnerability index of the coverage area-HVI, provided by the SMS/PRODABEL.

Covariates

The variables sex, age, education, and marital status were used as adjustment variables.

Statistical analysis

To describe the data, relative frequency and 95% confidence interval were used for qualitative variables, and measures of central tendency and dispersion were used for quantitative variables. Descriptive statistical tests were performed using Stata version 14.0.

The spatial scanning technique, also known as the spatial scan statistic, was used to detect clusters of high prevalence of outcomes, that is, unhealthy eating habits and SB2121 Kulldorff M. A spatial scan statistic. Communications in Statistics - Theory and Methods. 1997; 26(6):1481-1496.

22 Kulldorff M, Nagarwalla N. Spatial disease clusters: Detection and inference. Statistics in Medicine. 1995; 14(8):799-810.
-2323 Kulldorff MA. SaTScanTM User Guide. [Internet]. 2015 [cited 2020 nov 20]. Available from: https://www.satscan.org/cgibin/satscan/register.pl/SaTScan_Users_Guide.pdf?todo=process_userguide_download
https://www.satscan.org/cgibin/satscan/r...
. The spatial scan statistic detects the location of clusters, when present, and assesses their statistical significance. The spatial scan statistic can adjust the uneven geographical density of a population background, and the analysis depends on the total number of observed cases. The spatial scan statistic imposes a circular window on the map and allows the center of the circle to move gradually throughout the study area. This technique tests whether nearby areas are more similar to the study variable than expected in a random pattern. The null hypothesis states that the spatial distribution of the study event is random.

Furthermore, spatial scan analysis, proposed by Kulldorff, was performed, adjusting for covariates. According to Kulldorff (2015)2323 Kulldorff MA. SaTScanTM User Guide. [Internet]. 2015 [cited 2020 nov 20]. Available from: https://www.satscan.org/cgibin/satscan/register.pl/SaTScan_Users_Guide.pdf?todo=process_userguide_download
https://www.satscan.org/cgibin/satscan/r...
, the adjustment for covariates can be performed using a regression model for estimating the expected number of cases for each area. The expected number of cases is used to re-estimate the reference population in each area. Therefore, the covariates are not included in the spatial scanning model but instead in the adjusted population.

The Mann-Whitney U test was used to compare environmental variables according to the presence of a cluster, since the variables were not symmetrically distributed.

The spatial analysis was performed using SaTScan version 9.2, with a 0.05 level of significance.

Ethical aspects

This study was approved by the Ethics Committee of the Ministry of Health of Brazil and the Research Ethics Committee of the Federal University of Minas Gerais (Universidade Federal de Minas Gerais-UFMG; opinion number 25447414.1.0000.5149).

Results

Participant characteristics

The sample constituted 5,783 individuals, with a mean age of 42.1 years (±16.3). Most participants were women (53.9%), aged from 25 to 34 years (24.6%), with 0 to 8 years of education (40.5%), without a live-in partner (53.9%), and with mulatto/brown skin color (54.1%). SB and unhealthy eating habits were reported by 11.0% and 26.6% of participants, respectively. The characteristics of the study participants, according to the presence of SB and unhealthy eating habits, are outlined in Table 1.

Table 1
Characteristics of the participants according to the presence of sedentary behavior and unhealthy eating habits. Belo Horizonte, Minas Gerais, 2008-2010.

Spatial cluster of sedentary behavior

A significant cluster of high prevalence of SB was identified, using spatial analysis, in Belo Horizonte (Figure 1a). The cluster has a radius of 2.107 m and encompasses 145 participants, of whom 34 (23.4%) exhibit SB. The probability of finding a participant with SB in the cluster is 2.11 times (RR = 2.11; p = 0.016) that of CABHU’s outside the cluster.

Figure 1
Spatial cluster of high prevalence of sedentary behavior (a) and high prevalence of sedentary behavior adjusted for sex, age, education, and marital status (b). Belo Horizonte, Minas Gerais, 2008-2010.

The location of the cluster remained unchanged after adjusting for sex, age, education, and marital status (Figure 1b). However, the size of the cluster reduced to a radius of 1.350 m. The probability of finding a participant with SB in the cluster is 2.51 times (RR = 2.51; p = 0.046) that of CABHU’s outside the cluster.

The environment of the coverage areas included in the cluster of high prevalence of SB differs from that of the areas outside the cluster (Table 2). The densities of public places for physical activity and of private places for physical activity were lower, while the homicide rate, income, and HVI were higher in the areas within the cluster.

Table 2
Environmental characteristics inside and outside the cluster of high prevalence of sedentary behavior. Belo Horizonte, Minas Gerais, 2008-2010.

Spatial cluster of unhealthy eating habits

Spatial analysis revealed a significant cluster of unhealthy eating habits in Belo Horizonte (Figure 2a), which includes 715 individuals, of whom 30.3% exhibit unhealthy eating habits. In comparison with CABHUBHU’s outside the cluster, the probability of finding a participant with unhealthy eating habits in the cluster was 36% higher (RR = 1.36; p = 0.0021).

Figure 2
Spatial cluster of high prevalence of unhealthy eating habits (a) and high prevalence of unhealthy eating habits adjusted for sex, age, education, and marital status (b). Belo Horizonte, Minas Gerais, 2008-2010.

After adjusting for sex, age, education, and marital status, the location of the cluster changed slightly; some of the CABHU were no longer part of the cluster, whereas others were included (Figure 2b). This cluster has a radius of 5,074 m, and includes 560 individuals, of whom 199 (35.5%) exhibit unhealthy eating habits. The probability of finding an individual with unhealthy eating habits in the cluster was 32% higher (RR = 1.32; p = 0.0144) than that in CABHU outside the cluster.

In comparison with areas outside the cluster, the cluster showed lower family income and density of establishments selling mixed foods (Table 3).

Table 3
Environmental characteristics outside and inside the cluster of high prevalence of unhealthy eating habits. Belo Horizonte, Minas Gerais, 2008-2010.

Discussion

This study carried-out spatial analysis technique to identify clusters of SB and unhealthy eating habits in an urban area of a Brazilian city. Cluster areas showed significant differences in environment characteristics as compared with non-cluster areas, adjusted by potential confounders. The cluster location confirmed that the environment is potential obesogenic, and, thus, may lead to unhealthy behaviors.

The identification of disease / behavior clusters has been an important tool for health researchers, since this may assist in the identification of health inequalities and in the development of health intervention strategies for the neediest areas.

The cluster of high proportion of unhealthy eating habits in this study was located in a less developed area of the city and it was observed lower family income and lower density of establishments selling mixed foods, even after adjustment for individual variables. This relationship may be explained by the impact of income on the number of food establishments available, in addition to product quality and price2424 Richardson AS, Meyer KA, Howard AG, Boone Heinonen J, Popkin BM, Evenson KR, Kiefe CI, Lewis CE, Gordon-Larsen P. Neighborhood socioeconomic status and food environment: a 20-year longitudinal latent class analysis among CARDIA participants. Health Place 2014; 30:145-153.

25 Pessoa MC, Mendes LL, Caiaffa WT, Malta DC, Velásquez-Meléndez G. Availability of food stores and consumption of fruit, legumes and vegetables in a Brazilian urban area. Nutr Hosp 2015; 31(3):1438-1443.
-2626 Ball K, Lamb K, Costa C, Cutumisu N, Ellaway A, Kamphuis C, Mentz G, Pearce J, Santana P, Santos R, Schulz AJ, Spence JC, Thornton LE, Lenthe FJV, Zenk SN. Neighbourhood socioeconomic disadvantage and fruit and vegetable consumption: a seven countries comparison. Int J Beh Nutr Physic Activity 2015; 12(68).. A relationship between neighborhood with better socioeconomic conditions and greater availability of food establishments, and the consequent the better food consumption was shown in various studies1616 Menezes MC, Costa BVL, Oliveira CDL, Lopes ACS. Local food environment and fruit and vegetable consumption: an ecological study. Prev Med Rep 2017; 5:13-20.,2626 Ball K, Lamb K, Costa C, Cutumisu N, Ellaway A, Kamphuis C, Mentz G, Pearce J, Santana P, Santos R, Schulz AJ, Spence JC, Thornton LE, Lenthe FJV, Zenk SN. Neighbourhood socioeconomic disadvantage and fruit and vegetable consumption: a seven countries comparison. Int J Beh Nutr Physic Activity 2015; 12(68).

27 Lopes M, Caiaffa W, Andrade A, Malta D, Barber S, Friche A. Disparities in food consumption between economically segregated urban neighbourhoods. Public Health Nutr 2020; 23(3):525-537.
-2828 Xiao Q, Keadle SK, Berrigan D, Matthews CE. A prospective investigation of neighborhood socioeconomic deprivation and physical activity and sedentary behavior in older adults. Prev Med 2018; 111:14-20..

In the cluster of high prevalence of SB, CABHU presented a lower density of places for physical activity, and socioeconomic deprivation, represented by a high homicide rate and high HVI score. Studies on environmental determinants of SB report that neighborhood socioeconomic status is the most investigated environmental factor, indicating that individuals living in neighborhoods with greater socioeconomic deprivation show longer sitting times and screen times, including television time2929 Molina-García J, Menescardi C, Estevan I, Martínez-Bello V, Queralt A. Neighborhood Built Environment and Socioeconomic Status are Associated with Active Commuting and Sedentary Behavior, but not with Leisure-Time Physical Activity, in University Students. Int J Environ Res Public Health 2019; 16(17):3176.

30 Oyeyemi AL, Kolo SM, Rufai AA, Oyeyemi AY, Omotara BA, Sallis JF. Associations of neighborhood walkability with sedentary time in Nigerian older adults. Int J Environ Res Public Health 2019; 16(11):1879.

31 Hsueh M, Liao Y, Chang S. Perceived neighborhood and home environmental factors associated with television viewing among taiwanese older adults. Int J Environ Res Public Health 2016; 13(7):708.
-3232 Ball K, Lamb K, Costa C, Cutumisu N, Ellaway A, Kamphuis C, Mentz G, Pearce J, Santana P, Santos R, Schulz AJ, Spence JC, Thornton LE, Lenthe FJV, Zenk SN. A systematic review of correlates of sedentary behaviour in adults aged 18-65 years: a socio-ecological approach. BMC Public Health 2016; 16(1):163. Storgaard RL, Hansen HS, Aadahl M, Glümer C. Association between neighbourhood green space and sedentary leisure time in a Danish population. Scand J Public Health 2013; 41(8):846-852.. Furthermore, higher density of and proximity to recreational facilities are associated with less SB3232 Ball K, Lamb K, Costa C, Cutumisu N, Ellaway A, Kamphuis C, Mentz G, Pearce J, Santana P, Santos R, Schulz AJ, Spence JC, Thornton LE, Lenthe FJV, Zenk SN. A systematic review of correlates of sedentary behaviour in adults aged 18-65 years: a socio-ecological approach. BMC Public Health 2016; 16(1):163. Storgaard RL, Hansen HS, Aadahl M, Glümer C. Association between neighbourhood green space and sedentary leisure time in a Danish population. Scand J Public Health 2013; 41(8):846-852.

33 Hsueh MC, Liao Y, Chang SH. Perceived Neighborhood and Home Environmental Factors Associated with Television Viewing among Taiwanese Older Adults. Int J Environ Res Public Health 2016; 13(7):708.

34 Hynes M, Seoighthe E. Heading in the right direction? Investigating walkability in Galway city, Ireland. Urban Sci 2018; 2(2):31.
-3535 Ming-Chun H, Chien-Yu L, Pin-Hsuan H, Jong-Hwan P, Yung L. Cross-sectional associations of environmental perception with leisure-time physical activity and screen time among older adults. J Clin Med 2018; 7(3):56.. A possible speculation for these results that could be a higher density of places for physical activity and the proximity to recreational facilities increase access to these areas and reduce the time of SB. In addition, seeing people being active is also associated with lower SB3636 Koohsari MJ, Sugiyama T, Sahlqvist S, Mavoa S, Hadgraft N, Owen N. Neighborhood environmental attributes and adults' sedentary behaviors: Review and research agenda. Prev Med 2015; 77:141-149.. However, it is important to mention that most studies focus on density and proximity to public places, such as green areas32.

Criminality rates may increase social disorganization and disorder in a neighborhood, resulting in fear and insecurity in performing outdoor activities, with individuals favoring to spend more time at home, thus encouraging SB30, 32-36. Research evaluating the association between the neighborhood environment and SB is still scarce, and the results are contradictory and depend on the behavioral variable evaluated 28, 36-39.

The sedentary behavior is not synonymous of physical inactivity or the opposite of PA. PA and SB can coexist, that is, the individual can be sufficiently active, according to the recommendations of the PA guides, but spend most of the time in SC33 Ekelund U, Steene-Johannessen J, Brown WJ, Fagerland MW, Owen N, Powell KE, Bauman A, Lee I- M. Lancet Physical Activity Series 2 Executive Committe; Lancet Sedentary Behaviour Working Group. Does physical activity attenuate, or even eliminate, the detrimental association of sitting time with mortality? A harmonised meta-analysis of data from more than 1 million men and women. Lancet 2016; 388(10051):1302-1310..

Finally, it is highlighted the influence of TV time on lifestyle habits especially eating habits, that are related with increased energy intake, which can be due to higher consumption of ultra-processed foods while watching TV, as well as higher exposure to ultra-processed advertises4040 Francis HM, Stevenson RJ, Oaten MJ, Mahmut MK and Yeomans MR.The Immediate and Delayed Effects of TV: Impacts of Gender and Processed-Food Intake History. Front Psychol 2017; 8:1616.

41 Harris JL, Bargh JA , Brownell KD. Priming effects of television food advertising on eating behavior. Health Psychology 2009; 28:404-413.
-4242 Mendes LL, Campos SF, Malta DC, Bernal RTI, Sá NNBD, Velásquez-Meléndez G. Validade e reprodutibilidade de marcadores do consumo de alimentos e bebidas de um inquérito telefônico realizado na cidade de Belo Horizonte (MG), Brasil. Rev Bras Epidemiol 2011; 14:80-89..

These results may facilitate a better understanding of the role of the neighborhood environment in health outcomes and disease prevention in urban areas. The use of surveillance systems in combination with spatial analysis techniques is underlined by their power to identify high-risk areas and to focus on interventions. However, some specific limitations should be reported, including the use of self-reported measures of the study outcomes, which is inherent to the methodological proposal of surveillance systems using telephone survey. Nevertheless, Vigitel questionnaire validation studies indicate satisfactory results for the measures assessed by telephone surveys compared to face-to-face interviews, and showed good reproducibility and validity4343 Monteiro CA, Florindo AA, Claro RM, Moura EC. Validade de indicadores de atividade física e sedentarismo obtidos por inquérito telefônico. Rev Saude Publica 2008; 42(4):575-581.

44 Moreira AD, Claro RM, Felisbino-Mendes MS, Velasquez-Melendez G. Validade e reprodutibilidade de inquérito telefônico de atividade física no Brasil. Rev Bras Epidemiol 2017; 20:136-146.
-4545 Bernal R, Silva NND. Cobertura de linhas telefônicas residenciais e vícios potenciais em estudos epidemiológicos. Rev Saude Publica 2009; 43(3):421-426..

Another limitation refers to the use of CABHU as neighborhood units. CABHU are used as neighborhood boundaries, but this may be inconsistent with the individuals’ notions/perceptions of “neighborhood.” The use of contextual data gathered from commercial and governmental sources, which may be subject to inaccuracies and which refer to a slightly different period (2009-2012) from that of individual data (2008-2010), is also a limitation. However, no major changes in neighborhood environments presumably occurred in this period. The results are consistent with most national and international literature demonstrate the consistency of findings. An additional limitation concerns the exclusion of households without telephone landlines. However, the coverage of landlines in Belo Horizonte is higher than the average of the country, which reduces the possible selection bias46.

In conclusion, strong evidence of clusters of high prevalence of SB and unhealthy eating habits were observed in the city of Belo Horizonte, which may be associated to physical and social environment deprivation. Reducing inequalities is important for reducing SB and improving eating habits, thereby reducing the risk of chronic diseases. Our results may facilitate the design and implementation of more effective and geographically oriented public policies aimed at reducing obesogenic behavior and gaining a better understanding of geographical patterns in relation to the environment. Studies investigating the geographical distribution of diseases/behaviors may aid in understanding the epidemiological factors of population health status, to identify health inequalities, to understand risk and protective factors, and to develop strategies for health interventions in the most needed areas.

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  • Funding

    Ministério da Saúde, Fundo Nacional de Saúde, Convênio n. 86/2014

Publication Dates

  • Publication in this collection
    22 Apr 2022
  • Date of issue
    Apr 2022

History

  • Received
    04 Sept 2020
  • Accepted
    15 June 2021
  • Published
    17 June 2021
ABRASCO - Associação Brasileira de Saúde Coletiva Rio de Janeiro - RJ - Brazil
E-mail: revscol@fiocruz.br