Correction: Martínez-Valverde et al. Health Needs Assessment: Chronic Kidney Disease Secondary to Type 2 Diabetes Mellitus in a Population without Social Security, Mexico 2016-2032. Int. J. Environ. Res. Public Health 2022, 19, 9010.

In the original publication [...].

Childhood Cancer Survival, 2006-2012 Cohorts of Mexican Institute of Social Security Beneficiaries at the Central-South Region of Mexico.

Introduction: In Mexico, the main institution of social security is the "Instituto Mexicano del Seguro Social" (IMSS), with more than 60 million enrolled individuals. This study of childhood cancer survival is the first based on complete cohorts of incident cases for the population IMSS- affiliated in the central-south region, which represents 27% of all children IMSS affiliated. Methods: It is an observational cohort study from 2006 to 2012 to estimate the 5-year observed survival of the minors under 18 years old, identified in the Central-South Region Registry of Children with Cancer. The survival of cases was carried out through the active and passive search. Survival rates were estimated by the Kaplan-Meier (KM) method, the analysis of equality of survival functions was evaluated for some clinical variables. Results: The study included 2,357 minors; the 5-year observed survival was 56.1% with a time of survival median of 3.4 years, and the overall loss of follow-up was 18.4%. The 5-year survival in cases with a diagnosis of leukemia was 53.5%, while for solid tumors, it was 57.9%. The median time of death was 1 year. The types of cancer with a survival greater than 70% were group V-retinoblastoma (87.2%), IIa-Hodgkin's lymphoma (86.8%), Xc- gonadal tumors (83.3%), Iid-miscellaneous lymphomas (80%), IVa-nephroblastoma (79.5%), and IIc-Burkitt's lymphoma (75.4%). Meanwhile, the lowest survival rates were in group VIII-bone tumors (32.3%), III-CNS (central nervous system; 44.1%), and IX-soft tissues (46.8%). Conclusions: Survival results in the 2006-2012 cohorts show a significant gap in relation to the goal of 60% proposed by the World Health Organization for 2030.

Health Needs Assessment: Chronic Kidney Disease Secondary to Type 2 Diabetes Mellitus in a Population without Social Security, Mexico 2016-2032.

Health needs assessment is a relevant tracer of planning process of healthcare programs. The objective is to assess the health needs of chronic kidney disease (CKD) secondary to type 2 diabetes mellitus (T2 DM) in a population without social security in Mexico. The study design was a statistical simulation model based on data at the national level of Mexico. A stochastic Markov model was used to simulate the progression from diabetes to CKD. The time horizon was 16 years. The results indicate that in 2022, kidney damage progression and affectation in the diabetic patient cohort will be 34.15% based on the time since T2 DM diagnosis. At the end of the 16-year period, assuming that the model of care remains unchanged, early renal involvement will affect slightly more than twice as many patients (118%) and cases with macroalbuminuria will triple (228%). The need for renal replacement therapy will more than double (169%). Meanwhile, deaths associated with cardiovascular risk will more than triple (284%). We concluded that the clinical manifestations of patients with CKD secondary to T2 DM without social security constitute a double challenge. The first refers to the fact that the greatest health need is early care of CKD, and the second is the urgent need to address cardiovascular risk in order to reduce deaths in the population at risk.

Correction to: socioeconomic inequalities in survival of children with acute lymphoblastic leukemia insured by social security in Mexico: a study of the 2007-2009 cohorts.

Following publication of the original article [1], the author reported her name has been erroneously spelled as Blanca E. Pelcastre. The full name is Blanca E. Pelcastre-Villafuerte.

Socioeconomic inequalities in survival of children with acute lymphoblastic leukemia insured by social security in Mexico: a study of the 2007-2009 cohorts.

BACKGROUND: Although acute lymphoblastic leukemia (ALL) 5 years survival in minors has reached 90%, socioeconomic differences have been reported among and within countries. Within countries, the difference has been related to the socioeconomic status of the parents, even in the context of public health services with universal coverage. In Mexico, differences in the mortality of children with cancer have been reported among sociodemographic zones. The Instituto Mexicano del Seguro Social (IMSS), the country's main social security institution, has reported socioeconomic differences in life expectancy within its affiliated population. Here, the socioeconomic inequalities in the survival of children (< 15 years old) enrolled in the IMSS were analyzed. METHODS: Five-year survival data were analyzed in cohorts of patients diagnosed with ALL during the period 2007-2009 in the two IMSS networks of medical services that serve 7 states of the central region of Mexico. A Cox proportional risk model was developed and adjusted for the socioeconomic characteristics of family, community of residence and for the clinical characteristics of the children. The slope of socioeconomic inequality of the probability of dying within five years after the diagnosis of ALL was estimated. RESULTS: For the 294 patients studied, the 5 years survival rate was 53.7%; the median survival was 4.06 years (4.9 years for standard-risk diagnosis; 2.5 years for high-risk diagnosis). The attrition rate was 12%. The Cox model showed that children who had been IMSS-insured for less than half their lives had more than double the risk of dying than those who had been insured for their entire lives. CONCLUSIONS: We did not find evidence of socioeconomic inequalities in the survival of children with ALL associated with family income, educational and occupational level of parents. However, we found a relevant gradient related social security protection: the longer children's life insured by social security, the higher their probability of surviving ALL was. These results add evidence of the effectiveness of social security, as a mechanism of wealth redistribution and a promoter of social mobility. Extending these social security benefits to the entire Mexican population could promote better health outcomes.

Direct medical costs of neonatal respiratory distress syndrome in two specialized public hospitals in Mexico / Costo médico directo del síndrome de dificultad respiratoria neonatal en dos hospitales públicos de alta especialidad en México

Objective. To estimate direct medical costs (DMC) associated with treatment of Respiratory Distress Syndrome (RDS) in newborns (NB) in two specialized public hospitals in Mexico. Materials and methods. The perspective used was health care payer. We estimated DMC associated with RDS management. The pattern of resource use was established by reviewing clinical records. Microcosting and bootstrap techniques were used to obtain the DMC. Estimated costs were reported in 2011 US dollars. Results. Average DMC per RDS event was 14 226 USD. The most significant items that account for this cost were hospitalization (38%), laboratory and diagnostic exams (18%), incubator time (10%), surfactant therapy (7%), and mechanical ventilation (7%). Conclusion. Average DMC in NB with RDS fluctuated in relation to gestational age weight at birth and clinical complications presented by patients during their hospitalization.

Objetivo. Determinar los costos médicos directos (CMD) asociados con el tratamiento del síndrome de dificultad respiratoria (SDR) en recién nacidos pretérmino en dos hospitales públicos de alta especialidad de México. Material y métodos. Se utilizó la perspectiva del pagador de servicios de salud. El uso de recursos se estimó mediante la revisión de expedientes clínicos. Se empleó la técnica de microcosteo y de bootstrap para la obtención de los CMD. Los costos fueron reportados en dólares estadounidenses de 2011. Resultados. El CMD por evento de SDR promedio fue de 14 226 dólares distribuidos entre los costos de hospitalización (38%), laboratorio y exámenes de diagnóstico (18%), tiempo en incubación (10%), terapia con surfactantes (7%) y ventilación mecánica (7%). Conclusión. Los CMD promedio en recién nacidos pretérmino con SDR están relacionados con la edad gestacional, el peso al nacer y las complicaciones clínicas que presentan los pacientes durante su hospitalización.

Triggering factors of primary care costs in the years following type 2 diabetes diagnosis in Mexico.

BACKGROUND AND AIMS: Diabetes represents a high epidemiological and economic burden worldwide. The cost of diabetes care increases slowly during early years, but it accelerates once chronic complications set in. There is evidence that adequate control may delay the onset of complications. Management of diabetes falls almost exclusively into primary care services until chronic complications appear. Therefore, primary care is strategic for reducing the expedited growth of costs. The objective of this study was to identify predictors of primary care costs in patients without complications in the years following diabetes diagnosis. METHODS: Direct medical costs for primary care were determined from the perspective of public health services provider. Information was obtained from medical records of 764 patients. Microcosting and average cost techniques were combined. A generalized linear regression model was developed including characteristics of patients and facilities. Primary health care costs for different patient profiles were estimated. RESULTS: The mean annual primary care cost was USD$465.1. Gender was the most important predictor followed by weight status, insulin use, respiratoty infections, glycemic control and dyslipidemia. A gap in costs was observed between genders; women make greater use of resources (42.1% on average). Such differences are reduced with obesity (18.1%), overweight (22.8%), respiratory infection (20.8%) and age >80 years (26.8%). Improving glycemic control shows increasing costs but at decreasing rates. CONCLUSIONS: Modifiable factors (glycemic control, weight status and comorbidities) drive primary care costs the first 10 years. Those factors had a larger effect in costs for males than in for females.

Direct medical costs of neonatal respiratory distress syndrome in two specialized public hospitals in Mexico.

OBJECTIVE: To estimate direct medical costs (DMC) associated with treatment of Respiratory Distress Syndrome (RDS) in newborns (NB) in two specialized public hospitals in Mexico. MATERIALS AND METHODS: The perspective used was health care payer. We estimated DMC associated with RDS management. The pattern of resource use was established by reviewing clinical records. Microcosting and bootstrap techniques were used to obtain the DMC. Estimated costs were reported in 2011 US dollars. RESULTS: Average DMC per RDS event was 14 226 USD. The most significant items that account for this cost were hospitalization (38%), laboratory and diagnostic exams (18%), incubator time (10%), surfactant therapy (7%), and mechanical ventilation (7%). CONCLUSION: Average DMC in NB with RDS fluctuated in relation to gestational age weight at birth and clinical complications presented by patients during their hospitalization.

Potential savings in Mexico from screening and prevention for early diabetes and hypertension.

This study analyzes the potential economic benefits of identifying and treating patients with so-called prediabetes and prehypertension through the Mexican prevention program known by its Spanish acronym PREVENIMSS. The results show that for each US dollar invested in prevention, $84-$323 would be saved over a twenty-year period. For this and other reasons, providing preventive care for prediabetes and prehypertension patients is better than the current routine care model, in which care is provided in most cases when the disease has progressed substantially. Yet data show that screening and preventive care services are still not being used widely enough in Mexico, are provided too late, or are not sufficiently targeted to the most at-risk individuals. Investing in preventive care for patients with prediabetes and prehypertension is cost saving.

Necesidades de atención social a la salud de los niños y adolescentes con VIH-SIDA: perspectivas del Hospital Infantil de México Federico Gómez / Social care needs to the health of child and adolescents with HIV-AIDS: perspectives of the Hospital Infantil de Mexico Federico Gomez

Introducción. Objetivo: analizar las necesidades de atención social a la salud de pacientes atendidos en la Clínica para niños con Inmunodeficiencias/VIH-SIDA del Hospital Infantil de México Federico Gómez. Métodos. En el año 2008 se condujo un estudio transversal con niños y adolescentes usuarios de la clínica para niños con inmunodeficiencias. Se analizó la información demográfica, familiar y económica contenida en los expedientes sociales. Resultados. Se analizaron 177 pacientes: 25% menores de 5 años de edad, 48% tenían entre 5 y 10 años, 13% de 10 a 15 años y 13% mayores de 15 años; 53% recibía cuidado parental, 28% por familiares cercanos y 17.5% estaba en albergues. La escolaridad se observó por debajo del promedio esperado; 70% de los padres (madre, padre o ambos) tenía VIH-SIDA. El ingreso promedio mensual de 87.8% de las familias fue de $2 644.00 MN; del cual, 62% se destinaba para gastos de alimentación y 9% para servicios médicos. Los ingresos provenían del mercado informal. Todos los pacientes recibían los medicamentos gratuitamente a través del Sistema de Protección Social en Salud (Seguro Popular). Conclusión. Los pacientes y sus familias tenían severas condiciones de vulnerabilidad social y escasa posibilidad para desarrollar competencias educativas y laborales. Por lo que es indispensable incrementar la capacidad institucional de la Clínica de Inmunodeficiencia/VIH-SIDA para otorgar atención social.

Introduction. We undertook this study in order to analyze the social care needs of users of the Immunodeficiency/HIV clinic of Hospital Infantil de Mexico Federico Gomez in Mexico City. Methods. A cross-sectional study was conducted with chil-dren and adolescents attending the clinic. Demographic, family and economic information were analyzed from the clinical files. Results. Included in the study were 177 patients: 25% were <5 years of age, 48% between 5 and 10 years, 13% between 10 and 15 years and 13% >15 years. Their educational level was below the expected average. Of these children, 53% are cared for by their parents, 28% by close relatives and 17% reside in shelters; 70% of parents suffer from HIV-AIDS and 87% of families have a monthly average income of MXN$2 644.00, from which 62% is allocated for food and 9% for medical care. Most of the "breadwinners" are marginally employed. All patients receive free medication covered by the Sistema de Protección Social en Salud. Conclusion. Children and adolescents with AIDS and their families have severe conditions of social vulnerability and little possibility for developing their educational and occupational capabilities. Expanding the capacity of the Immunodeficiency/ HIV clinic to provide social care will fulfill an unmet need.

Direct medical costs for partial refractory epilepsy in Mexico.

BACKGROUND: The aim was to determine the direct medical costs in patients with partial refractory epilepsy at the Mexican Institute of Social Security (IMSS) in Mexico. METHODS: We carried out a multicenter, retrospective-cohort partial-economic evaluation study of partial refractory epilepsy (PRE) diagnosed patients and analyzed patient files from four secondary- and tertiary-level hospitals. PRE patients >12 years of age with two or more antiepileptic drugs and follow-up for at least 1 year were included. The perspective was institutional (IMSS). Only direct healthcare costs were considered, and the timeline was 1 year. Cost techniques were microcosting, average per-service cost, and per-day cost, all costs expressed in U.S. dollars (USD, 2004). RESULTS: We reviewed 813 files of PRE patients: 133 had a correct diagnosis, and only 72 met study inclusion criteria. Fifty eight percent were females, 64% were <35 years of age, 47% were students, in 73% maximum academic level achieved was high school, and 53% were single. Fifty one percent of cases experienced simple partial seizures and 94% had more than one monthly seizure. Annual healthcare cost of the 72 patients was 190,486 USD, ambulatory healthcare contributing 76% and hospital healthcare with 24%. CONCLUSIONS: Annual mean healthcare cost per PRE patient was 2,646 USD; time of disease evolution and severity of the patient's illness did not affect costs significantly.

[Health care costs attributable to tobacco consumption on a national level in the Mexican Social Security Institute]. / Costos de la atención médica atribuibles al consumo de tabaco en el Instituto Mexicano del Seguro Social.

OBJECTIVE: To estimate the cost of medical care for the major diseases attributable to tobacco consumption at the IMSS. MATERIAL AND METHODS: A cost of illness (COI) analysis was carried out from the perspective of the health provider. A random sample of clinical files (n= 1,596) was reviewed to estimate the human resources and medical supplies's utilization according to the health care facilities. The smoking attributable fraction (SAF) by disease was used to derive costs attributable to tobacco consumption. The unitary cost was valuated in 2004 Mexican pesos (MP). RESULTS: The estimated annual total cost of medical care was 7114 million MP for acute myocardial infarction (AMI); 3424 million MP for Cerebrovascular Disease, 1469 million MP for chronic obstructive pulmonary disease (COPD) and 102 million MP for lung cancer (LC). The annual total cost of medical care for IMSS was 12100 million MP. The total annual cost of medical care attributable to tobacco consumption corresponds to 7100 million MP, which is equivalent to 4.3% of the annual expenditures of the IMSS during 2004. CONCLUSIONS: These results confirm the high medical costs associated with smoking. This information would be used to reinforce the tobacco control preventive actions at IMSS and support decision-makers in strengthening public policies to control tobacco use in Mexico.

Costos de la atención médica atribuibles al consumo de tabaco en el Instituto Mexicano del Seguro Social / Health care costs attributable to tobacco consumption on a national level in the Mexican Social Security Institute

OBJETIVO: Cuantificar el efecto de las enfermedades atribuibles al consumo de tabaco, en términos epidemiológicos (morbilidad) y económicos (costos de atención médica), en el Instituto Mexicano del Seguro Social (IMSS) a escala nacional. MATERIAL Y MÉTODOS: Los costos de la atención médica se estimaron desde la perspectiva del proveedor y se empleó la metodología del costeo de enfermedad. A partir de una muestra de pacientes (n= 1 596) atendidos en las unidades médicas se estableció la frecuencia de utilización de servicios en los tres niveles de atención. Para cada enfermedad se consideraron costos promedio por paciente y costos totales de enfermedad, los cuales se mensuraron en pesos mexicanos de 2004. Se calculó la fracción atribuible al consumo de tabaco para cada enfermedad, misma que se usó para atribuir los costos al tabaco. RESULTADOS: Los costos totales anuales de atención médica nacional corresponden a 7 114 millones para el infarto agudo del miocardio, 3 424 millones para la enfermedad vascular cerebral, 1 469 millones para la enfermedad pulmonar obstructiva crónica y 102 millones para el cáncer pulmonar. El costo total anual para el IMSS por estas cuatro enfermedades asciende a 12 100 millones de pesos. Los costos atribuibles al consumo de tabaco corresponden a 7 100 millones de pesos, lo cual equivale a 4.3 por ciento del gasto de operación de la institución en el año 2004. CONCLUSIONES: Estos resultados confirman el elevado costo de la atención médica de las enfermedades atribuibles al consumo de tabaco en el IMSS y generan información de primera mano necesaria para impulsar las medidas de prevención en esa institución y reforzar las políticas de control del tabaquismo ya aplicadas en México.