[Effect of breastfeeding on XXXX of schoolchildren: influence of maternal education].

@entity1 @entity28
OBJECTIVE: To evaluate the association between duration of breastfeeding (BF) and @entity28 in schoolchildren of Florian  polis (SC), and the role of possible effect modifiers. METHODS: Cross-sectional study with a random sample of 2,826 schoolchildren (7-14  years). Weight and height were measured according to standardized procedures. Data concerning BF and sociodemographic variables were obtained from a questionnaire sent to parents/guardians. @entity1 's nutritional status was evaluated by BMI-for-age z-score for gender (WHO reference curves). Adjusted analyses were performed through logistic regression, considering a possible interaction among variables. RESULTS: Prevalence of @entity28 was 8.6% (95% CI: 7.6-9.7%) and 55.7% (95% CI: 53.8-57.6%) received breastmilk for >=  6 months. BF was not associated with @entity28 , even in the adjusted analysis. Stratified analysis according to maternal schooling showed that, in @entity1 aged 7-10 years and @entity1 whose mothers had 0-8 years of schooling, the chance of @entity28 was lower among those breastfeed for >1 month, especially among those who received breastmilk for 1-5 months (OR=0.22; 95% CI 0.08-0.62). Among @entity1 of @entity1 with higher educational level (> 8 years), the chance of @entity28 was 44% lower in those who were breastfed for >12 months (p-value for interaction < 0.01). This interaction was not found in older @entity1 (11-14 years). CONCLUSIONS: Among @entity1 of @entity1 with lower schooling, BF for any period longer than 1  month is protective against @entity28 ; however, for a higher maternal schooling, BF for less than 12 months increases the odds of @entity28 .
