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Search Results: 1 - 10 of 5182 matches for " Armando; Shamah-Levy "
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Factores asociados al uso de suplementos alimenticios en mujeres mexicanas de 12 a 49 a?os de edad
Mejía-Rodríguez,Fabiola; Camacho-Cisneros,Martha; García-Guerra,Armando; Monterrubio-Flores,Eric; Shamah-Levy,Teresa; Villalpando Hernández,Salvador;
Archivos Latinoamericanos de Nutrición , 2008,
Abstract: factors associated with nutritional supplement consumption in mexican women aged 12 to 49 years. the objectives of this analysis are to identify the types of nutritional supplements (ns) commonly used and explore the associations between ns consumption and socio-demographic characteristics, nutritional status, measured as bmi, and anemia in a nationally representative sample mexican women aged 12 to 49 years (n=15,936) who participated in the mexican national nutrition survey in 1999. data on ns consumption and the other characteristics of interest were collected. we calculated the probability (p) of supplement consumption using logistic regression. for the statistical analysis characteristics at the individual and household level were included in the statistical models, and adjusted for the study design. interaction effects were also explored. multiple mixed vitamin and mineral supplements were the most commonly consumed (36.7%) followed by vitamins only (34.3%). married women were significantly (p<0.05) more likely (p=0.16; p <0.001) to consume ns compared to unmarried women, as were those with more access to public and private health care (p=0.18; p=0.010), with higher education level (p=0.20; p=0.004) and living in the south region (p=0.20; p=0.003). anemia modified the association between supplement consumption and socioeconomic status (ses) (p=0.016), non anemic women having greater probabilities of ns consumption. these results suggest that ns use among mexican women is associated with better living conditions. on the other hand, we also found that women living in the south region, the poorest region of the country, had higher probability of ns consumption compared to the north region. this could be related to participation in food assistance programs; however we were unable to explore this potential explanation. this information will be used to further study trends, risks and health benefits in this population of the use of nutritional supplements.
The prevalence of anemia decreased in Mexican preschool and school-age children from 1999 to 2006
Villalpando,Salvador; Shamah-Levy,Teresa; García-Guerra,Armando; Mundo-Rosas,Verónica; Domínguez,Clara; Mejía-Rodríguez,Fabiola;
Salud Pública de México , 2009, DOI: 10.1590/S0036-36342009001000005
Abstract: objective: to compare the distribution of anemia in children, based on information from mexican national health and nutrition survey 2006 (ensanut 2006) and mexican national nutrition survey 1999 (enn-99), and examine the association of anemia with potentially explanatory variables. material and methods: adjusted prevalence and means as well as associations with potentially explanatory variables were assessed by multiple linear and logistic regression models for complex samples. results: from 1999 to 2006, the prevalence of anemia decreased 13.8 percentage points (pp) in toddlers and 7.8 pp in children 24-35 months of age; it also decreased 0.7 pp/year in urban and rural populations, 1.8 pp/year in indigenous and 0.61 pp/year in non-indigenous toddlers, 1.5 pp/year in children 5-8 years of age and 0.78 pp/year in children 9-11 years of age. in toddlers served by oportunidades, hb was inversely associated with indigenous ethnicity (p=0.1) and they had a lower risk of anemia (or=0.002). in school-age children, age (or=0.98), affiliation to liconsa (or=0.42) and living in the central region (or=0.56) were protective factors for anemia. conclusions: the national prevalence of anemia in mexico has decreased in the past seven years, especially in toddlers. being a beneficiary of liconsa or oportunidades was protective for anemia.
Iron, zinc and iodide status in Mexican children under 12 years and women 12-49 years of age: a probabilistic national survey
Villalpando,Salvador; García-Guerra,Armando; Ramírez-Silva,Claudia Ivonne; Mejía-Rodríguez,Fabiola; Matute,Guadalupe; Shamah-Levy,Teresa; Rivera,Juan A;
Salud Pública de México , 2003, DOI: 10.1590/S0036-36342003001000008
Abstract: objective: to describe the epidemiology of iron, zinc and iodide deficiencies in a probabilistic sample of mexican women and children and explore its association with some dietary and socio-demographic variables. material and methods: we carried out in 1999 an epidemiological description of iron (percent transferrin saturation, pts, <16%), serum zinc (<65ug/dl) and iodide (<50 ug/l urine) deficiencies in a probabilistic sample of 1,363 mexican children under 12 years and of 731 women of child-bearing age. serum iron, total iron binding capacity (tibc) and zinc were measured by atomic absorption spectrometry, and urinary iodide by a colorimetric method. logistic regression models explored determinants for such micromineral deficiencies. results: iron deficiency was higher (67%) in infants <2 years of age. prevalence declined (34-39%) at school age. the prevalence for iron deficiency in women was 40%. zinc deficiency was higher in infants <2 years of age (34%) than in school-age children (19-24%). prevalence in women was 30%, with no rural/urban difference. in women the likelihood of iron deficiency decreased as sel improved (p=0.04) and increased with the intake of cereals (p=0.01). the likelihood of low serum zinc levels was greater in women and children of low socioeconomic level (sel) (p<0.02 and p=0.001) iodide deficiency was negligible in both children and women. conclusions: the data shows high prevalence of iron deficiency- specially in infants 12 to 24 months of age. it is suggested that in older children and women 12 to 49 years of age that iron bioavailability is low. the prevalence of zinc deficiency was also very high.
Vitamins A, and C and folate status in Mexican children under 12 years and women 12-49 years: a probabilistic national survey
Villalpando,Salvador; Montalvo-Velarde,Irene; Zambrano,Norma; García-Guerra,Armando; Ramírez-Silva,Claudia Ivonne; Shamah-Levy,Teresa; Rivera,Juan A;
Salud Pública de México , 2003, DOI: 10.1590/S0036-36342003001000007
Abstract: objective: to describe the epidemiology of vitamin a and c and folic acid deficiencies and their association with sociodemographic and dietary factors in a national probabilistic sample of mexican women and children. material and methods: this is a probabilistic sample from the national nutrition survey 1999 (enn-99) including 1 966 children and 920 women. vitamins a and c were measured in serum by high-performance liquid chromatography, and folic acid in total blood by a microbiological method. determinants for such deficiencies were explored by multiple regression models. results: vitamin a deficiency (retinol <10 μg/dl) was rare in both children and women. but subclinical deficiency (retinol >10 and <20 μg/dl) was present in 25% of children. the likelihood of subclinical deficiency of vitamin a was less in older children (or=0.98, p=0.01) and in women with higher body mass index (or=0.93, p=0.01). about 30% of children <2 years of age and 40% of women were vitamin c deficient. the likelihood of vitamin c deficiency was less in children and women as socioeconomic level increased (or=0.69, p=0.03, and or=0.80, p=0.04), and higher in older women (or=1.02, p=0.05). the prevalence of folate deficiency varied in children (2.3 to 11.2), in women it was 5%. folate deficiency was less in children of higher socioeconomic level (or=0.62, p=0.01 ), and in those eating more vegetables (or= 0.22, p=0.01). conclusions: the high prevalence of subclinical deficiency of vitamin a in children is indicative of risk of further deterioration under adverse circumstances. vitamin c deficiency in both children and women implies in addition diminished ability for iron absorption.
Anemia in Mexican women: results of two national probabilistic surveys
Shamah-Levy,Teresa; Villalpando-Hernández,Salvador; García-Guerra,Armando; Mundo-Rosas,Verónica; Mejía-Rodríguez,Fabiola; Domínguez-Islas,Clara Penélope;
Salud Pública de México , 2009, DOI: 10.1590/S0036-36342009001000006
Abstract: objective: to describe the prevalence of anemia in mexican women and analyze its trends with information from the last two national nutrition surveys. material and methods: the prevalence of anemia in women was analyzed. anemia was adjusted by socioeconomic profile and by potentially explanatory variables. results: the overall prevalence of anemia for pregnant women was 20.2% (95% ci 15.9, 26.2%) and 15.5% for non-pregnant women (95% ci 14.7, 16.4%). the prevalence of anemia in women decreased from 1999 to 2006 in all socioeconomic profiles. adolescent women living in the northern and in the southern regions had a greater risk of anemia than those in mexico city (p= 0.05). significant risk was found among low socioeconomic level (p< 0.06). greater parity was a significant risk factor (p< 0.05) for being anemic. conclusions: although anemia in reproductive age women in mexico decreased, it continues to be a public health problem.
Iron, zinc, copper and magnesium nutritional status in Mexican children aged 1 to 11 years
Morales-Ruán,Ma. del Carmen; Villalpando,Salvador; García-Guerra,Armando; Shamah-Levy,Teresa; Robledo-Pérez,Ricardo; ávila-Arcos,Marco Antonio; Rivera,Juan A.;
Salud Pública de México , 2012, DOI: 10.1590/S0036-36342012000200008
Abstract: objective: to describe the micronutrient nutritional status of a national sample of 1-11 year old mexican children surveyed in 2006 in national health and nutrition survey (ensanut 2006) and their association with dietary and sociodemographic factors. materials and methods: serum samples were used (n=5 060) to measure the concentrations of ferritin, transferrin receptor, zinc, copper and magnesium. results: prevalence of deficiencies in 1-4 and 5-11y old children were for iron (using low ferritin) 26.0 and 13.0%; zinc, 28.1 and 25.8%, respectively; and copper, ≈30% in both age groups. magnesium low serum concentrations (mlsc), were found in 12.0% and 28.4% of the children, respectively. being beneficiary of liconsa (or=0.32; c.i.95%, 0.17-0.61) or belonging to higher socioeconomic status (or=0.63; c.i.95%, 0.41-0.97) were protective against iron deficiency. increasing age (or=0.59; c.i.95%, 1.19-1.32) and living in the central region (or=0.59; c.i.95%, 0.36-0.97) were protective against mlsc. conclusions: deficiencies of iron and zinc are serious public health problems in mexican children.
Energy and nutrient intake in Mexican children 1 to 4 years old: results from the Mexican National Health and Nutrition Survey 2006
Mundo-Rosas,Verónica; Rodríguez-Ramírez,Sonia; Shamah-Levy,Teresa;
Salud Pública de México , 2009, DOI: 10.1590/S0036-36342009001000008
Abstract: objective: to document the energy and nutrient intake of mexican preschool children using data from the mexican national health and nutrition survey 2006 (ensanut 2006). material and methods: dietary data from 3 552 children less than 5 years old collected through a semi-quantitative food frequency questionnaire were analyzed. energy and nutrient daily intakes and adequacies were calculated. comparisons were made by geographic region, residence locality, and socioeconomic status. results: the mexico city region showed the highest energy (103.2%), carbohydrate (109.9%), and fat (110.1%) adequacies. the highest proportion of preschoolers with energy and micronutrients inadequacy (adequacy < 100%) was observed in children of indigenous ethnicity, low socioeconomic status, living in rural localities, and in the south region. conclusions: this information may help as an indicator of food availability and access in different population strata and as a tool to focus interventions on those who may better benefit from food assistance programs.
Trends for type 2 diabetes and other cardiovascular risk factors in Mexico from 1993-2006
Villalpando,Salvador; Shamah-Levy,Teresa; Rojas,Rosalba; Aguilar-Salinas,Carlos A.;
Salud Pública de México , 2010, DOI: 10.1590/S0036-36342010000700011
Abstract: objective: to describe the trends in the prevalence of type 2 diabetes (t2d), and other cardiovascular risk factors in three national health surveys (1993, 2000 and 2006). materials and methods: the databases of three surveys: enec 1993, ensa 2000 and ensanut 2006 were gathered. calculations of published data were reprocessed to do appropriate adjustments to assure comparability among surveys. results: from 1993 to 2006 the prevalence of type 2 diabetes (6.7-14.4%), metabolic syndrome (26.6-36.8%), hypertension (23.8-30.7%), hypercholesterolemia (27-43.6%), and high ldl-cholesterol (31.6-46%) increased rapidly. the prevalence of low hdl cholesterol was very high (60.5-63%) in all surveys and remained remarkably unchanged among surveys. conclusions: this increasing trends for the prevalence of t2d and cardiovascular risk factors predicts larger increments in the near future for t2d and cardiovascular morbidity and mortality. intensification of the preventive and remedy strategies is mandatory in order curve the foreseen dramatic increment in the disease burden.
Sugar-sweetened beverages consumption and BMI in Mexican adolescents: Mexican National Health and Nutrition Survey 2006
Jiménez-Aguilar,Alejandra; Flores,Mario; Shamah-Levy,Teresa;
Salud Pública de México , 2009, DOI: 10.1590/S0036-36342009001000015
Abstract: objective: to evaluate the association between the consumption of sugar-sweetened beverages (ssbs) and body mass index (bmi) in mexican adolescents. material and methods: we analyzed the data of 10 689 adolescents (ages 10 to 19 years old) who participated in the mexican national health and nutrition survey 2006 (ensanut 2006). consumption of ssbs (i.e. sodas, fruit beverages and sugar beverages) was evaluated by means of a semi-quantitative food frequency questionnaire. bmi was calculated (kg/m2). results: mean age was 13.8 ± 2.7 years. fifty percent were females. mean bmi was 21.7 ± 4.5. thirty percent of adolescents were overweight or obese. ninety percent of adolescents consumed at least one ssb during the 7 days before the interview. the median consumption of ssbs was 0.89 portion per day. multiple-linear regression analysis showed that for each portion of sodas consumed, a 0.17-point increase in bmi was observed in boys after adjusting for confounders (95% ci; 0.02-0.32, p 0.03). positive interactions of ssb consumption with age and time watching tv were observed in boys. conclusions: consumption of sodas was positively associated with bmi in mexican boys.
Overview of the nutritional status of selected micronutrients in Mexican children in 2006
Shamah-Levy,Teresa; Villalpando,Salvador; Jáuregui,Alejandra; Rivera,Juan A.;
Salud Pública de México , 2012,
Abstract: objetive: to present an overview of micronutrient status of mexican children in 2006. materials and methods: data on iron, zinc, folate and vitamin b12 deficiencies and low serum copper and magnesium were gathered and critically analyzed from the 2006 national health and nutrition survey. results: iron deficiency is still the main nutritional deficiency in children (13%-26%). zinc deficiency was high in all age groups (≈25%) but reduced 5.6 pp in children <5 y from 1999 to 2006. folate deficiency was 3.2% and vitamin b12 deficiency 7.7% in children. low serum magnesium and copper were high (22.6% and 30.6%, respectively). conclusions: the prevalence of iron deficiency seems to be lowering, and zinc deficiency has reduced in mexican children. a high prevalence of copper and magnesium deficiencies warrants further research on their public health implications.
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