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Zusammenfassung:
Microbial contamination of complementary foods puts young children at risk of developing intestinal infec-
tions and could be reduced by improved handwashing and food hygiene practices. We aimed to identify which promoted
food hygiene practices are associated with reduced complementary food contamination in a rural population in Bangla-
desh. We collected cross-sectional data on reported and observed maternal food hygiene behaviors and measured
Escherichia coli counts as an indicator of microbial contamination in complementary food samples from 342 children of
women enrolled in the Food and Agricultural Approaches to Reducing Malnutrition trial in Sylhet, Bangladesh. We used
multivariable logistic regression to examine associations of food hygiene behaviors with food contamination. Approxi-
mately 46% of complementary food samples had detectable levels of Escherichia coli. Handwashing with soap at critical
times and fresh preparation of food before feeding were strongly associated with reduced odds of food sample contami-
nation (odds ratio [OR]: 0.8, 95% confidence interval [CI]: 0.6–0.9 and OR: 0.3, 95% CI: 0.1–0.7, respectively); in contrast,
there was no or only weak evidence that reheating of stored food, safe food storage, and cleanliness of feeding utensils
reduced contamination. Reduction in food contamination could be more than halved only when several food hygiene
behaviors were practiced in combination. In conclusion, single food hygiene practices showed limited potential and a
combined practice of multiple food hygiene behaviors may be needed to achieve a substantial reduction of complemen-
tary food contamination.
