Influence of life‐style factors, including second‐hand smoke, on dental caries among 3‐year‐old children in Wuxi, China

Aim To examine the association of life‐style factors, including second‐hand smoke, with dental caries among 3‐year‐old children in Wuxi, China. Methods A multi‐stage stratified random cluster sampling method was used, and 283 children were recruited. The prevalence of dental caries was 29.3% (83/283). Results Univariate analysis indicated that the possible related factors of dental caries included sleep duration, interest in snacks, candy, exposure to second‐hand smoke and weight of birth (all P