Abstract

Chronic noncommunicable diseases (NCDs), including cancer, have become the leading cause of human morbidity and mortality. In Mexico, cancer is the third leading cause of death, with a high incidence among the economically active population, a high proportion of advanced stages at diagnosis and limited care coverage for patients. However, no public policy aimed at managing this important public health problem has been developed and implemented to date. This manuscript describes the first interinstitutional proposal of a National Program for Cancer Control, considering the known risk factors, early detection, treatment, palliative care and patient rehabilitation. This manuscript also outlines a series of thoughts on the difficulties and needs that the Mexican health system faces in achieving the main objectives of the program: to decrease the incidence of cancer, to increase survival and to improve the quality of life for this group of patients.

Keywords:
cancer; program; control; Mexico

Resumen

Las enfermedades crónicas no transmisibles (ECNT), incluido el cáncer, se han convertido en la principal causa de morbimortalidad de la humanidad. En México, el cáncer es la tercera causa de muerte, con una frecuencia elevada en población económicamente activa, una alta proporción de etapas avanzadas al momento del diagnóstico y una limitada cobertura de atención a quienes la padecen. No obstante, hasta el momento no se ha desarrollado e implementado una política pública dirigida al control de este importante problema de salud pública. Este manuscrito muestra la primera propuesta interinstitucional de un Programa Nacional para el Control del Cáncer, considerando los factores de riesgo conocidos, la detección temprana, el tratamiento y los cuidados paliativos y la rehabilitación del paciente. Asimismo se hacen una serie de reflexiones sobre las dificultades y necesidades a las que el sistema de salud mexicano se enfrenta para alcanzar los objetivos principales del programa: reducir la incidencia, incrementar la supervivencia y mejorar la calidad de vida de este grupo de pacientes.

Palabras clave:
cáncer; programa; control; México

In recent decades, neoplasias have ranked as leading causes of morbidity and mortality worldwide. For 2012, the International Agency for Research on Cancer (IARC) reported 14.1 million new cases, 4.6 million deaths and a prevalence of 32.6 million people, a number that may increase substantially in the coming years.¹1. Ferlay J, Soerjomataram I, Ervik M, Dikshit R, Eser S, Mathers C, Rebelo M, Parkin DM, Forman D, Bray, F. GLOBOCAN 2012 v1.0, Cancer Incidence and Mortality Worldwide: IARC CancerBase No. 11 [internet site]. Lyon, France: International Agency for Research on Cancer, 2013 [accesed on August 30, 2014]. Available at: http://globocan.iarc.fr.
http://globocan.iarc.fr...

The need to control this catastrophic disease requires that 55% of countries worldwide (107 nations) have a plan, policy or strategy to fight cancer by 2010.²2. World Health Organization. Observatorio de la Salud Global. WHO 2014 [internet site]. Geneva, Switzerland: WHO, 2014 [accessed on September 19, 2014]. Available at: http://apps.who.int/gho/data/node.main.A907?lang=en.
http://apps.who.int/gho/data/node.main.A... In general, these plans consider four basic elements: primary prevention (protection of the environment or health promotion), secondary prevention (screening), comprehensive care (diagnosis, treatment and organization of services), palliative care and/or psycho-oncology.³3. International Cancer Control Partnership (ICCP). Cancer Plans. UICC 2014 [internet site]. Geneva, Switzerland [accessed on September 20, 2014]. Available at: http://www.iccp-portal.org/cancer-plans.
http://www.iccp-portal.org/cancer-plans... ^-44. European Partnership for Action Against Cancer (EPAAC). National Cancer Control Programmes: Analysis of Primary Data from Questionnaires [monografía en internet] EPAAC 2012 [accessed on September 20, 2014]. Available at: http://www.epaac.eu/images/END/Final_Deliverables/WP_10_Annex_7_Final_Report_on_National_Cancer_Control_Programmes.pdf.
http://www.epaac.eu/images/END/Final_Del...

The cancer control programs implemented in developed countries have demonstrated successful reductions in cancer incidence and mortality rates. For example, in Australia, an incidence reduction from 370.0 to 323.0 cases per 100 000 persons between 2008 and 2012 has been described, with a mortality reduction from 119.5 to 96.4 deaths per 100 000 persons during the same period, with a relative survival rate of 66.1% for all cancers from 2006 to 2010.⁵5. Australian Cancer Incidence and Mortality (ACIM) Books - All Cancers combined for Australia (ICD10 C00-C97, D45-46, D47.1, D47.3). [accessed on September 21, 2014]. Available at: http://www.aihw.gov.au/acim-books/.
http://www.aihw.gov.au/acim-books/...

6. Ferlay J, Soerjomataram I, Ervik M, Dikshit R, Eser S, Mathers C, Rebelo M, Parkin DM, Forman D, Bray, F. GLOBOCAN 2012 v1.0, Cancer Incidence and Mortality Worldwide: IARC CancerBase No. 10 [internet site]. Lyon, France: International Agency for Research on Cancer, 2013 [accessed on September 27, 2014]. Available at: http://globocan.iarc.fr.
http://globocan.iarc.fr... ^-77. Australian Institute of Health and Welfare 2012. Cancer survival and prevalence in Australia: period estimates from 1982 to 2010. Cancer Series no. 69. Cat. no. CAN 65. Canberra: AIHW, 2012. Another example is the United Kingdom, where cancer death rates have fallen by 24% since the mid-1980s. This decrease is due to improvements in treatment, early diagnosis and population awareness, achieving a doubled cancer survival rate over the last 40 years.⁸8. Cancer Research UK. Cancer Statistics Report: Cancer Mortality in the UK in 2011 [internet site]. London, 2013 [accesed on September 22, 2014]. Available at: http://publications.cancerresearchuk.org/downloads/Product/CS_CS_MORTALITY.pdf.
http://publications.cancerresearchuk.org... ^-99. Cancer Research UK. England and Wales Survival (2010-2011) Summary [internet document]. UK: Cancer Research UK, 2014 [accessed on December 15, 2014]. Available at: http://www.cancerresearchuk.org/health-professional/cancer-statistics/surviva.
http://www.cancerresearchuk.org/health-p... A significant decline in age-adjusted incidence rates has been observed in the United States between 2008 and 2012, from 552.6 to 318.0 cases per 100 000 persons; the age-adjusted mortality rate from cancer for the same period also decreased, from 215.3 to 105.8 deaths per 100 000 persons. The five-year relative survival in the period 2004-2010 for all cancers combined was 81.2%.¹⁰10. Centers for Disease Control and Prevention. Cancer by Race and Ethnicity [internet site]. USA: CDC, 2014 [accesed on September 22, 2014]. Available at: http://apps.nccd.cdc.gov/uscs/cancersbyraceandethnicity.aspx#Footnotes.
http://apps.nccd.cdc.gov/uscs/cancersbyr...

11. Bray F, Ren JS, Masuyer E, Ferlay J. Estimates of global cancer prevalence for 27 sites in the adult population in 2008. Int J Cancer 2013;132(5):1133-1145. doi: 10.1002/ijc.27711.
https://doi.org/10.1002/ijc.27711... ^-1212. Ferlay J, Soerjomataram I, Ervik M, Dikshit R, Eser S, Mathers C, Rebelo M, Parkin DM, Forman D, Bray, F. GLOBOCAN 2008 v1.0, Cancer Incidence and Mortality Worldwide: IARC CancerBase No. 8 [internet site]. Lyon, France: International Agency for Research on Cancer, 2013 [accessed on August 30, 2014]. Available at: http://globocan.iarc.fr.
http://globocan.iarc.fr...

In Latin America and the Caribbean, the incidence of cancer reported by the IARC for 2012 was 1.1 million, with more than 600 000 deaths and a prevalence of 2.6 million people with cancer, mainly due to prostate, breast, colon, lung and cervical cancers.¹³13. Ferlay J, Soerjomataram I, Ervik M, Dikshit R, Eser S, Mathers C, Rebelo M, Parkin DM, Forman D, Bray, F. GLOBOCAN 2008 v1.0, Cancer Incidence and Mortality Worldwide: IARC CancerBase No. 11 [internet site]. Lyon, France: International Agency for Research on Cancer, 2013 [accessed on August 30, 2014]. Available at: http://globocan.iarc.fr.
http://globocan.iarc.fr... Unfortunately, there are few countries in this region that have efficient national programs against cancer, indicating difficulties related to their implementation, in addition to the low coverage of social security affiliation and use of services; the lack of local and/or regional programs and policies articulated in the national health system; the lack of specialized human resources; the underdevelopment of palliative care, support and rehabilitation services; and limited technical and operational capacities for the verification of compliance with service quality standards.¹⁴14. -Puerto Rico Comprehensive Cancer Control Plan 2008-2012. Centers for Disease Control and Prevention. Puerto Rico: Departamento de Salud de Puerto Rico, 2008.

15. Plan Decenal para el Control del Cáncer en Colombia, 2012-2021. Ministerio de Salud y Protección Social-Instituto Nacional de Cancerología, ESE. Bogotá, D.C.: Instituto Nacional de Cancerología, 2012.

16. Estrategia Nacional para la Prevención y Control de las Enfermedades Crónicas no Transmisibles. Argentina: Ministerio de Salud, 2009.^-1717. Plan de Acciones estratégicas para el enfrentamiento de las enfermedades no transmisibles (ENT) en Brasil 2011-2022 / Ministerio de la Salud. Secretaría de Vigilancia en Salud. Departamento de Análisis de Situación de Salud. - Brasilia: Ministerio de la Salud, 2011.

Cancer was the third leading cause of death in Mexico in 2013, contributing to 12.84% of all deaths that occurred in that year.¹⁸18. Secretaría de Salud, Sistema Nacional de Información en Salud - SINAIS, cubos dinámicos. [accessed on August 22, 2014] Available at: http://sinais.salud.gob.mx. 19.-Gutierrez JP, Rivera-Dommarco J, Shamah-Levy T, Villalpando-Hernandez S, Franco A, Cuevas-Nasu L, et al. Encuesta Nacional de Salud y Nutricion 2012. Resultados Nacionales. Cuernavaca, Mexico: Instituto Nacional de Salud Pública (MX), 2012.
http://sinais.salud.gob.mx... No data are available on the incidence and prevalence of cancer; however, cancer has been reported as a leading cause of hospital morbidity. The high prevalence of known risk factors, such as smoking, alcoholism, obesity and overweight, among others,¹⁹19. -Gutierrez JP, Rivera-Dommarco J, Shamah-Levy T, Villalpando-Hernandez S, Franco A, Cuevas-Nasu L, et al. Encuesta Nacional de Salud y Nutricion 2012. Resultados Nacionales. Cuernavaca, Mexico: Instituto Nacional de Salud Pública (MX), 2012. are known to be associated with high hospital morbidity. Therefore, the demand for health services for cancer patients is expected to increase substantially.

Currently, we know that approximately 70% of cancer cases in the country are diagnosed in advanced stages.²⁰20. Lopez-Carrillo L, Torres-Sanchez L, Lopez-Cervantes M, Rueda-Neria C. Identification of malignant breast lesions in Mexico. Salud Publica Mex 2001;43:199-202. This timing reduces the chances of cure and raises treatment costs for both families and society. Neither health infrastructure nor access to health care for all cancer patients is available. The Fund for Protection against Catastrophic Expenditures (FPCE) covers only certain types of cancer: those that occur in children and adolescents, and cervical (CeCa), breast (BC), testicular, and prostate cancers as well as non-Hodgkin lymphoma in adults.²¹21. Secretaría de Salud. Sistema de Seguridad Social en Salud. Informe de resultados 2012. México [accessed on September 17, 2014]. Available at: http://gaceta.diputados.gob.mx/Gaceta/62/2013/feb/InfSPSS-20130201.pdf.
http://gaceta.diputados.gob.mx/Gaceta/62...

Even in this context, Mexico does not have a single coordinating body for cancer prevention and control. As already mentioned, no national policy exists in this regard, and there are no complete and accurate data on the extent and social impact of this disease. Moreover, the health system is fragmented, which makes it difficult to maintain the continuity of treatments and reference and counter-reference actions between different levels of care. In addition, the frequent financial crises and the existence of priorities competing for funding have undermined the development of an appropriate infrastructure for detection, treatment and palliation.

For this reason, in 2008, the Health Secretariat summoned institutions including research centers, academia, non-governmental organizations and society as a whole to the National Cancer Institute (Instituto Nacional de Cancerología, INCan) to participate in the planning, implementation and evaluation of the National Cancer Control Program in Mexico (NCCP). The main objective of this manuscript is to analyze the challenges that NCCP development has faced and the strategies that we consider indispensable for the implementation and evaluation of the NCCP.

Current status of cancer care in Mexico

The Mexican health system consists of two sectors: public and private. The social security institutions [Mexican Social Security Institute (Instituto Mexicano del Seguro Social, IMSS), Institute for Security and Social Services for State Workers (Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, ISSSTE), Petróleos Mexicanos (Pemex), Secretary of Defense (Sedena), Secretariat of the Navy (Semar) and others] and the institutions and programs that serve the population without social security [Secretariat of Health (Secretaría de Salud, SSa), State Health Services (Servicios Estatales de Salud, SESA), IMSS-Oportunidades (IMSS-O) program, People's Insurance (Seguro Popular, SPS)] are within the public sector. The private sector includes insurance companies and service providers who work in offices, clinics and private hospitals, including alternative medicine service providers.²²22. Gómez-Dantés O, Sesma S, Becerril VM, Knaul FM, Arreola H, Frenk J. Sistema de salud de México. Salud Publica Mex 2011;53 supl 2:S220-S232.

In this context, formal cancer care in Mexico began in 1946 with the creation of INCan, supported by the SSa. Since then, the care of cancer patients and the launch of primary prevention and early detection programs began at INCan and other institutions in the health system. However, there have been important deficits in both human resources and infrastructure and in the acquisition of specialized equipment for the prevention and care of this population.

Currently, according to data provided by the main health institutions in Mexico, there are 25 High Specialty Medical Units (Unidades Médicas de Alta Especialidad, UMAEs) in the IMSS, of which 18 offer cancer care, including eight specialty hospitals; four obstetrics and gynecology hospitals; two pediatric hospitals; a gynecology pediatric hospital; a general hospital; a trauma hospital, and an oncology hospital. These UMAEs have 128 outpatient offices, of which 68 (53.1%) are related to surgical treatment care and 60 (46.9%) to medical oncology care. Most clinics are centralized in the oncology hospital of the National Medical Center Siglo XXI (19 for medical oncology and 35 for surgical oncology). The IMSS provides services to cancer patients, such as specialty consultation, surgery, radiotherapy and chemotherapy. The demand for care has increased since 2005, in part due to better preventive measures and early diagnosis, early treatment and increased patient survival. Currently, there are estimates of 735 surgical oncologists, 50 gynecologic oncologists, 269 medical oncologists, 151 pediatric oncologists and 180 radiation oncologists at IMSS nationally. These numbers alr/eady show a clear shortage of qualified personnel, which will worsen as the population ages and with the concomitant increase of people developing some type of cancer.

The ISSSTE has second- and third-level hospitals for cancer patient care. The ISSSTE includes 13 regional hospitals, 24 general hospitals and a National Medical Center, where oncology consultations rank first in terms of total consultations. The ISSSTE also has reference units for hematology as well as pediatric oncology units and units to provide psychological support. In total, the ISSSTE has 1180 units providing care to cancer patients, in which 201 medical specialists and 66 trainees work. In this institution, the treatment of cancer patients is based on care models according to disease complexity.

The SSa counts on federal hospitals and national institutes with oncology services (Hospital Juarez of Mexico, General Hospital of Mexico and the National Institute of Medical Sciences and Nutrition Salvador Zubirán), INCan specific for the attention of cancer patients. In addition, a Network of Cancer Centers (RED de Centros Oncológicos) exists, although this network has yet to reach seven states: Zacatecas, Queretaro, Hidalgo, Tlaxcala, Morelos, Quintana Roo and Mexico State (in which even when there is a equipped center, it only provides medical care to the population affiliated with the ISSEMYM). The SSa provides care to children and adolescents in 51 Accredited Medical Units (UMAs) in all entities except Baja California Sur, through the services of 106 pediatric oncologists and 47 pediatric hematologists. The institution has five medical units of reference.

Mexico rates far below international recommendations for staff and specialized equipment for cancer treatment.²³23. Mohar A, Bargalló E, Ramírez MT Lara F, Beltrán-Ortega A. Recursos disponibles para el tratamiento del cáncer de mama en México Salud Pública de México [en línea] 2009, 51 [accessed on September 26, 2014] Available at: http://www.redalyc.org/articulo.oa?id=10616164017 ISSN 0036-3634.
http://www.redalyc.org/articulo.oa?id=10...

24. Center for Workforce Studies (2007). A Report to the American Society of Clinical Oncology (ASCO) from the AAMC Center for Workforce Studies.^-2525. Herránz-Fernández C, Casas-Fernández de Tejerina A, Alba-Conejo E, Albanell-Mestre J, Antón-Torres A, Alberola Torres A, et al. Sugerencias para la planificación de la Oncología Médica en España. Libro Blanco de la Oncología en España. Informe para la Planificación Global. Ed. Jims, 1988. In 2009, the IMSS had between 5.9 and 8 oncologists per million affiliates. Additionally, there are approximately 176 devices (103 linear accelerators and 73 cobalt bombs), representing 1.5 devices per million inhabitants.

The available information on cancer morbidity only includes the numbers of hospital discharges from public health institutions, without the possibility of identifying incident or prevalent cases. On average, cancer hospital discharges represented 6% of total annual discharges of public institutions from 2004-2010. Cancers with higher numbers of hospital discharges included malignant breast tumors and lymphoid leukemias.¹⁸18. Secretaría de Salud, Sistema Nacional de Información en Salud - SINAIS, cubos dinámicos. [accessed on August 22, 2014] Available at: http://sinais.salud.gob.mx. 19.-Gutierrez JP, Rivera-Dommarco J, Shamah-Levy T, Villalpando-Hernandez S, Franco A, Cuevas-Nasu L, et al. Encuesta Nacional de Salud y Nutricion 2012. Resultados Nacionales. Cuernavaca, Mexico: Instituto Nacional de Salud Pública (MX), 2012.
http://sinais.salud.gob.mx... Cancer remains among the ten leading causes of hospital morbidity in all of these institutions. In the ISSSTE, for example, in 2010, it ranked sixth (16 923 cases, 4.35% of total discharges). In the IMSS, the three main types of cancer that merited hospitalization were BC, leukemias and lymphomas; in this institution, 49% of these hospitalizations were women, 34% men and 17% individuals under 20 years of age.

Given the scientific evidence available in Mexico, the population structure and the World Health Organization (WHO) recommendations, mass population screening is justified only for BC and CeCa using mammography and simple cytological screening or enhanced to human papillomavirus (HPV) detection. However, there is still ample room for improvement because many of the indicators have suboptimal performance levels and there are interinstitutional differences in target populations, coverage and infrastructure. Specifically for BC, the insufficient human and material facilities for screening and early detection by mammography have been strongly described.²³23. Mohar A, Bargalló E, Ramírez MT Lara F, Beltrán-Ortega A. Recursos disponibles para el tratamiento del cáncer de mama en México Salud Pública de México [en línea] 2009, 51 [accessed on September 26, 2014] Available at: http://www.redalyc.org/articulo.oa?id=10616164017 ISSN 0036-3634.
http://www.redalyc.org/articulo.oa?id=10... Similarly, cost-effective screening methods should be evaluated in our population for cancers with high mortality rates, such as prostate, lung and colon cancers.

Meanwhile, the comprehensive management of cancer patients in the country is determined by the allocation of resources defined by the priorities of each institution. It is of utmost importance to ensure quality care based on the best available evidence and to adhere to homogeneous Clinical Practice Guidelines (CPG) and internationally accepted performance indicators.

Under this scenario, the cancer control strategy should have the following general objectives:

To meet these objectives, an inclusive proposal was raised, and meetings were held with leaders of chronic disease control from each of the Mexican health system institutions and with representatives of the Civil Society Organizations actively involved in cancer. The structure of the team responsible for the development, implementation and evaluation is shown in figure 1.

In this context, the objectives, action lines, indicators and targets were defined for the strategic priorities: risk factor control, screening and early diagnosis, treatment, palliative care and rehabilitation.

Strategic priorities

Primary prevention

Objective and Indicators: To reduce the incidence of the most common cancer diseases in the Mexican population (Table I).

Screening and early diagnosis

Objective: To establish an efficient national model with wide population-based coverage (> 80%) and early detection for the main types of cancer affecting the Mexican population to ensure access to treatment in a timely manner, a better quality of life and longer survival (table II).

Treatment

Objective and Indicators: To provide the entire Mexican population health infrastructure and access to cancer services by strengthening mechanisms of free, efficient, high-quality multidisciplinary care (table III).

Palliative care

Objective and Indicators: To improve the quality of life of cancer patients and their families through the prevention of suffering and its relief through appropriate treatments for pain and other problems (physical, psychological and spiritual) (table IV).

Rehabilitation

Objective and Indicators: To restore physical, social, psychological and occupational functionality to patients in the shortest time possible (table V).

Other needs

In addition to the above strategic priorities, there are other needs, such as the existence of a National Cancer Registry to enable the knowledge and monitoring of the epidemiology of this disease and the development of basic strategies. For this registry, it is necessary to create institutional and interinstitutional records of cancer cases using homogenized and systematized information, strengthening the epidemiological surveillance system to provide timely and quality decision-making information, to foster the development of population-based cancer registries in the country, and to generate and/or adapt and validate information systems technologies.

Given the complexity of cancer, it is essential to promote and strengthen cancer research through an interinstitutional and multidisciplinary network to generate knowledge about the burden of the disease, causal factors, effects of the implementation and evaluation of interventions for healthy lifestyles including diet, physical activity and smoking prevention, biotechnological innovations in primary (prophylactic and therapeutic vaccines) and secondary (new early detection tests) prevention and cost-effective population programs for cancer prevention and control in our context.

Implementation and evaluation

The NCCP should be a universal care model immersed in every care institution and with national coverage, which should require a national coordination team responsible for the collection, management, reporting and analysis of information generated by the NCCP.

Discussion

In Mexico, cancer has become one of the leading causes of death. The known risk factors for this group of diseases are described as highly prevalent in our population; therefore, the need for a National Control Program is now imminent. The national status of cancer is described here, along with strategies and interventions that could help to control this epidemic. This proposal includes strategies considered internationally.³⁴34. -Organización Mundial de la Salud. Cancer control: Policy and advocacy. WHO guide for effective programmes. WHO 2008. SBN: 92 4 154752 9. [accessed on December 2014]. Available at: http://www.who.int/cancer/publications/cancer_control_advocacy/en/.
http://www.who.int/cancer/publications/c... However, the national scene involves some implementation complexity that we must overcome.

The control of some cancer risk factors in the country, such as smoking, alcohol, overweight and obesity,³⁵35. Primer informe sobre combate al tabaquismo. México ante el Convenio Marco para el Control del Tabaco. México.Cuernavaca: Instituto Nacional de Salud Pública, 2005:29-41.

36. Secretaría de Salud, Comité Nacional contra las Adicciones (2011). Programa contra el Alcoholismo y el Abuso de Bebidas Alcohólicas. Distrito Federal: Secretaría de Salud, 2011.^-3737. Secretaría de Salud. Acuerdo Nacional para la Salud Alimentaria. Estrategia de sobrepeso y obesidad. México, D.F. Secretaría de Salud, 2010. has been favored by linking with other health policies aimed at Non-Communicable Diseases (NCD) other than cancer. In addition, the NCCP proposed here considers actions to avoid other preventable factors, such as vaccination against HPV infections, promoting use of clean-burning and efficient stoves, education programs for UV protection, and regulating the use of known carcinogens in work areas.

At the national level, there are specific programs for the early detection and screening of BC and CeCa.³⁸38. Secretaría de Salud. Programa de Acción Específico 2007-2012. Cáncer de mama. Distrito Federal: Secretaría de Salud, 2008.^,3939. Secretaría de Salud. Programa de Acción Específico 2007-2012. Cáncer cérvicouterino. Distrito Federal: Secretaría de Salud, 2008. However, some health institutions have also developed their own guidelines, hindering the systematization of actions on this issue.

Thus, even if the strategy consists of the generation of specific lines of action, the contrasts between health institutions may hamper their implementation. As an example, the structures of IMSS and ISSSTE should function to enable referencing and counter-referencing and should mediate the granting of early treatment within their system, but that is not the case. The situation is worse in other sectors, such as SSalud, which does not have a second level of attention allowing for patient monitoring, therefore saturating hospitals with high degrees of speciality.²²22. Gómez-Dantés O, Sesma S, Becerril VM, Knaul FM, Arreola H, Frenk J. Sistema de salud de México. Salud Publica Mex 2011;53 supl 2:S220-S232. At the same time, the budget handled by each institution is different; thus, the provision of medicines is heterogeneous throughout the health system, creating the need to develop national clinical management guidelines with the most cost-effective treatment and palliative alternatives for all cancer patients. For this reason, the accreditation of feasible actions for all institutions must be the first step.

The deficient infrastructure available in the country has been mentioned above; for instance, in 2012, the existence of 269 certified medical oncologists for a population of over 100 million people was reported. Additionally, medical specialists are centralized in the larger cities in the country: there are 119 oncologists in Mexico City, 22 in Nuevo Leon, 21 in Jalisco, 14 in the State of Mexico, 9 in Baja California Norte and 8 in Puebla, while there are less than four medical oncologists for the other states of the Republic.⁴⁰40. Beltrán-Ortega A, Reynoso-Noverón N, Maytre-Villarreal Garza C, Fernández-Orozco A, Mohar-Betancourt A. Oncología médica, Cirugía oncología y Radiooncología. Desarrollo de las Especialidades Médicas en México. México: Academia Nacional de Medicina-UNAM-SSA, 2012:343-355. The role of primary care physicians, such as general practitioners, family physicians and internists, is essential to providing primary prevention information to the population, to promoting practices in early cancer detection and to first diagnosing the majority of tumors before referring the patient to cancer specialists. However, most tumors in Mexico are diagnosed in advanced stages, reflecting the lack of knowledge of health staff and the general population as well as the poor distribution of screening programs in these sectors.

Thus, the Mexican health system has serious deficiencies in its physical infrastructure and personnel that will be difficult to amend in the short term. The NCCP should be implemented under the current conditions, and the challenge is to ensure that active cross-sectoral and community collaborations promote effective changes in the lifestyles of the population and in the detection and care to reduce cancer morbidity and mortality in the long term.

In addition to these factors, it is impossible that the huge economic costs associated with cancer can be exclusively undertaken by the public sector and are even less likely to be assumed by individual families. Thus the financing, construction, renovation, management and maintenance of the needed infrastructures for cancer care require the involvement of other sectors, especially the private sector. In this context, it is necessary to define a clear framework and a methodology for the collaboration between public and private stakeholders in the health system.

The creation of a cross-sectoral coordinating body may contribute to the better design, implementation and evaluation of all of these proposed actions. A link between the government sector and a cross-sectoral working task force with actors with technical, academic and research profiles is needed to advance toward key objectives, as has been achieved in some other nations.

Achieving the sustainability of the integrated management of NCDs, including cancer, represents a huge challenge for the health system in Mexico. The economic component is of great importance for both the health system itself and the macroeconomics of the country. To gauge the economic impact that cancer will have on our country, estimations of cancer's macroeconomic impact (i.e., the indirect cost or productivity cost) were performed in two scenarios between 2000 and 2020: the first scenario assumes that the short- and long-term benefits are given to the entire working-age population (PET) who develop cancer, while the second scenario assumes that only the economically active population, consisting of employed and salaried individuals (PEAOA) who develop cancer is the beneficiary, such as that established by the governing law on social security in 2012.⁴¹41. Cámara de Diputados, Ley del Seguro Social, Congreso de la Unión, 2012 [accessed on December 2013]. Available at: http://www.diputados.gob.mx/LeyesBiblio/92.pdf.
http://www.diputados.gob.mx/LeyesBiblio/... Under the scenario of universal social security coverage, the indirect cost generated by cancers among PET in 2010 amounted to almost 36 500 million Mexican pesos (mp). This amount includes revenue lost due to premature deaths (64% of the total), allowances for temporary or permanent disability (30% of the total) and opportunity costs for the person caring for each patient (6% of the total). Under this scenario, the greatest impact (58% of the total, on average) is felt by the female population. According to the current trends of mortality and incidence-prevalence and due to the non-strengthening of prevention and early diagnosis interventions, the macroeconomic cost of cancer is estimated to be at just over 50 500 billion pesos (mp) by 2020.

In the second scenario, the indirect cost generated by cancer in PEAOA amounts to just over 21500 million pesos in 2010. The amount includes 68% of revenue lost due to premature death, 22% for temporary or permanent subsidies and 10% opportunity cost. In the absence of prevention and early diagnosis interventions, it is estimated that the macroeconomic cost of cancers would reach 30120 million pesos in 2020, then requiring cancer prevention and early detection action in adults, which will contribute to the financial sustainability of comprehensive care cancer in the medium and long term.

The care and treatment of some cancers in people without Social Security are covered by the Seguro Popular in Mexico. However, the general population does not have full coverage in the care of other types of cancers. This recent opening of financial protection creates great pressure on the health system to meet the treatment needs of people with cancer.

The FPGCC, created for this purpose, provides health care to accredited patients through a network of centers that do not have national coverage, and the attention it provides has other limitations, such as insufficient numbers of specialists and technical staff for the operation and maintenance of radiotherapy and brachytherapy equipment.⁴²42. Instituto Nacional de Salud Pública, Sistema de Protección Social en Salud Evaluación de Procesos Administrativos. México: INSP, 2008. ISBN 978-607-7530-06-0 [accessed on December 2014]. Available at: http://portal.salud.gob.mx/codigos/columnas/evaluacion_programas/pdf/EXT07_SPSS_IF.pdf.
http://portal.salud.gob.mx/codigos/colum... In addition, diagnosis confirmation is necessary for FPGC coverage; thus, these women usually receive care in the later stages of cancer. Therefore, the policy of BC treatment inclusion in the FPGC is negatively affected by the lack of an equally wide policy on prevention and early detection.

This reality has led to the exploration of options for increasing the use of the first- and second-level centers, along with private health care facilities, through systems of co-responsibility and schemes of negotiated prices. The increase in demand for care, which is a product of this strategy, should foster better price negotiations for both drugs and treatments.

Similarly, the implementation of a program of this magnitude should consider its evaluation via a transparency and accountability method, for which a statistical information system that calculates the incidence, prevalence, survival and quality of life of cancer patients is needed. These measures are essential to the institution of population-based cancer registries, one of the most urgent needs of the country and a central part of the NCCP.

Therefore, generating an inclusive program that is standardized under equity standards that promote greater survival and improved quality of life for patients is an urgent task in Mexico. These measures will require the effort of the national health system to face the challenges posed here and to have positive effects on the incidence and mortality of one of the leading causes of mortality in the country: cancer.

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