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Background: The aging process involves psychosocial and physiological changes, which modify the nutritional status in the elderly. The objective was to assess the nutritional status of a group of elderly patients using the Mini Nutritional Assessment (MNA) and the Fried frailty index, as well as the relation between both., Methods: From June to July, 2013, we carried out a cross-sectional study with consecutive sampling of 146 patients of both sexes, from the Hospital Civil "Fray Antonio Alcalde", in Guadalajara, México. We applied the MNA and the Fried frailty index., Results: The mean age was 81.7 years (±7.65). One hundred and six patients (72.6%) were females, and 40 were males (27.4%). Basic anthropometric data showed that the mean weight was 57.67 kg (±13.7), with a mean of 1.52 (±0.09) meters in size; body mass index was 24.85 (±5.32) kg/m2. The results showed that 14.1% of patients with a normal nutritional status suffered from frailty, while 42.1% had risk of malnutrition and frailty., Conclusion: Frailty in the elderly is still present even if they have a normal nutritional status; when the nutritional status decreases, there is a higher prevalence of frailty in this age group.

Objective: To identify the prevalence of caries in affiliated children and teenagers at Instituto Mexicano del Seguro Social (IMSS)., Methods: The survey was carried out according to the World Health Organization indexes. The studied was carried out in 1545 boys and girls aged three, five, six, and twelve years and selected by stratified random sampling in seven places of Mexican Republic (Guanajuato, East and West Estado de México, Northwest 1, Northeast 2, Southwest 3, and Southeast 4 DF)., Results: The prevalence of caries was 66.9%. Rates were higher in temporary dentition than in permanent teeth (p<3.07). The mean of caries index per tooth in primary dentition in children of six years of age was 3.57±2.8. In the 12 years of age group the average per tooth was 1.97±1.4. The main component in both primary and permanent dentition was caries with 2.49 and 1.56 respectively., Conclusions: The results of this survey showed slight changes in prevalence and high levels of caries in children.

Objective: To measure the association between social economic conditions and the presence of risk factors for drowning at home in children under 5 years old within metropolitan area of Guadalajara., Methods: Surveyed 439 family houses were lived children less than 5 years old randomly selected during 18 months. Variables included social economic level, demographics, and bodies of water and accessories present at the house., Results: Children in the lower social economic level are exposed more frequently to buckets and laundry tubs in the house than children of medium level families, but not to underground cisterns and wells. No mater the equal number of underground cisterns and wells, safety accessories and equipment are less frequent in low socioeconomic families. Children in the low social economic level spend more time at their homes than medium socioeconomic level children., Conclusions: It seems that the high frequency of drowning among low social economic families is related to a higher exposure to risk factors. It is necessary to improve mechanisms and change environmental conditions to reduce the number of children drowning at home.

Objective: To identify socio-demographic characteristics and general health conditions among senior citizens working as volunteer packers in a supermarket chain in Mexico., Material and Methods: From May to July 2008 we carried out a cross-sectional analysis in 416 volunteers aged 60 or more years., Results: Mean age was 69.4 years, (range 60-87). Mean level of schooling was elementary school. Men's prior occupation was in the formal sector of the economy vs. women participants who were not. Men were mostly from lower middle class strata and women from lower strata. Most participant's self-perception of health was good although there was an inherent risk of developing obesity. Depression rating scale scores were within normal limits. They had sought work as packers due to financial constraints., Conclusions: Senior citizens working as paid volunteers seems to promote their physical, mental, social and financial well being. Our findings suggest gender differences within the context of a bleak socio-economic and epidemiological panorama.

Objective: To describe the mortality of pedestrians injured at motor vehicle traffic accidents (PIMVTA) in Mexico., Methods: Analysis of death certificates registered in Mexico (1985-1996), identified by E codes of the International Classification of Diseases, 9th Revision. Mortality rates were stratified by age group., Results: From 1985 to 1996, 60,566 deaths in PIMVTA (rate of 7.42/100,000) were registered: 78.1% in men (11.7/100,000), and 21.9% in women (3.2/100,000). The mortality increased in direct relationship to age, the general mortality trend lightly descending in both sexes, but more marked from the 80 and more years old. The higher rate was is observed for Jalisco (9.7/100,000) and the lower rate was for Coahuila (2.1/100,000). According to the location size, the mortality shows a bimodal distribution: higher for localities of 15.000 to 19.999 and 1,000,000 (8.0/100,000 and 8.2/100,000 person-years, respectively., Conclusions: The deaths of PLATVM are presented, mainly, in men, their frequency is incremented with the age, they show a tendency lightly descending, and they are observed with greater frequency in urban centers.