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1.
J. pediatr. (Rio J.) ; 87(1): 29-35, jan.-fev. 2011. tab
Article in Portuguese | LILACS | ID: lil-576126

ABSTRACT

OBJETIVO: Verificar a influência do baixo peso de crianças nascidas a termo sobre a composição corporal na idade escolar. MÉTODO: Este estudo consistiu de um corte transversal aninhado em uma coorte de 375 crianças recrutadas ao nascimento em 1993-1994 no estado de Pernambuco. Aos 8 anos de idade, 213 crianças tiveram a composição corporal avaliada através da mensuração da espessura das pregas cutâneas tricipital e subescapular e da circunferência do braço. A regressão linear multivariada foi utilizada para identificar a influência do baixo peso ao nascer, das condições socioeconômicas, do estado nutricional materno e morbidade da criança na prega cutânea tricipital. RESULTADOS: As médias das pregas cutâneas tricipital e subescapular, da circunferência do braço e das áreas muscular e de gordura do braço foram menores nas crianças nascidas com baixo peso em relação às nascidas com peso adequado; no entanto, essas diferenças não foram estatisticamente significantes. Na análise de regressão linear multivariada, as variáveis socioeconômicas explicaram o maior percentual da variação da prega cutânea tricipital (12,3 por cento), especialmente a renda familiar per capita (9,1 por cento), seguida da ocorrência de anemia e da hospitalização anterior, que juntas explicaram 5,6 por cento, e do índice de massa corporal materna, que contribuiu com 2,4 por cento dessa variação. O baixo peso ao nascer não influenciou no depósito de gordura subcutânea tricipital nessa faixa etária. CONCLUSÃO: Os fatores socioeconômicos e a morbidade anterior da criança apresentaram uma maior influência na composição corporal de escolares nascidos a termo em detrimento do baixo peso ao nascer.


OBJECTIVE: To assess the influence of low birth weight in full-term infants on body composition at school age. METHOD: This is a cross-sectional study nested in a cohort of 375 infants recruited at birth between 1993 and 1994 in the state of Pernambuco, Brazil. At 8 years of age, the body composition of 213 children from this cohort was assessed by measurement of triceps and subscapular skinfold thickness and mid upper arm circumference. Multivariable linear regression analysis was used to identify the influence of low birth weight, socioeconomic condition, maternal nutritional status, and child morbidity on triceps skinfold thickness. RESULTS: Mean triceps and subscapular skinfold thickness, mid upper arm circumference, and upper arm muscle and fat areas were lower in children born at term with low weight than in those with appropriate birth weight. However, these differences were not statistically significant. Multivariable linear regression analysis showed that the relative majority of variance in triceps skinfold thickness (12.3 percent) was explained by socioeconomic variables, particularly per capita family income (9.1 percent), followed by anemia and past hospitalization (which, together, explained 5.6 percent of variance) and maternal body mass index, which contributed toward 2.4 percent of this variance. Low birth weight had no influence on triceps subcutaneous fat deposition in this age group. CONCLUSION: Socioeconomic factors and a history of morbidity had a greater influence on body composition than low birth weight in schoolchildren born at term.


Subject(s)
Adult , Child , Female , Humans , Male , Middle Aged , Body Composition/physiology , Fetal Growth Retardation/physiopathology , Birth Weight , Body Mass Index , Brazil , Cohort Studies , Cross-Sectional Studies , Regression Analysis , Skinfold Thickness , Socioeconomic Factors
2.
Mem. Inst. Oswaldo Cruz ; 87(1): 93-7, jan.-mar. 1992. tab
Article in English | LILACS | ID: lil-116288

ABSTRACT

Of 126 infants under 2 years, enrolled in a study on the etiology of acute diarrhea in Recife, Brazil, we selected 37 from whom no recognized enteropathogens, except classic enteropathogenic Escherichia coli, were identified. For comparison, we also examined 37 matched-control infants without diarrhea seen at the same hospital setting. This paper had the purpose to determine the prevalence of localized, diffuse, and aggregative-adhering E. coli strains in both groups. Three to five fecal E. coli colonies, of each case and control, were tested individually for adherence to HeLa cells by using the one step 3-h incubation assay. Strains of E. coli showing localized adherence were found significantly more often in patients (37.8%) than in controls (13.5%), p < 0.02, and they were pratically confined to EPEC serovars 055:H-, 0111:H2, and 119:H6. In contrast, E. coli isolates exhibiting the diffuse or aggregative patterns of adherence were restricted to non-EPEC serogroups and were more frequently encountred among controls.


Subject(s)
Infant , Humans , Diarrhea, Infantile/etiology , Escherichia coli/isolation & purification , Brazil/epidemiology , Diarrhea, Infantile/epidemiology
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