Volume 18, Number 9—September 2012
Infectious Diseases in Children and Body Mass Index in Young Adults
|Predictor||BMI, age ≈24 mo
||BMI, age ≈22 y
|Parameter estimate||p value||Parameter estimate||p value|
|Visits with reported URI‡||–0.25||0.14||1.13§||0.01|
|Visits with current fever||–1.41||<0.001||–1.61||0.11|
|Visits with reported diarrhea||0.23||0.27||–1.05||0.06|
|Visits during which child was observed crawling in unsanitary conditions||–0.05||0.65||–0.72||0.02|
*BMI, body mass index; URI, upper respiratory infection.
†Models were adjusted for maternal schooling/training (<7 or >7 y), sex and birth weight. R2: BMI age 24 mo, 0.08; BMI age 22 y, 0.03.
‡A model that used number of visits instead of proportion of visits identified very similar findings, as did a model that limited analysis to those with >10 visits only.
§The parameter estimate corresponds to the change in BMI when participants with no visits (0%) with infection are compared to those with all visits (100%) with infection. Alternatively, a 10% increase in reported visits with infection corresponds to an increase of 10% of the parameter in BMI in adulthood. For example, a 10% increase in visits with reported URI corresponds to a 0.113 kg/m2 increase in adult BMI.