Drinking water chlorination and delivery outcome—a registry-based study in Sweden

摘要: By using the Swedish Medical Birth Registry and official data on drinking water chlorination, three cohorts were identified compared: women who lived in areas where was disinfected with chlorine dioxide, that used sodium hypochlorite disinfection, there no chlorination of water. There a statistically significant increase short gestational duration low birth weight especially body length very small head circumference hypochlorite, but effects these variables found dioxide. No congenital malformations, childhood cancer, infant mortality, Apgar score, neonatal jaundice, or hypothyroidism associated either two methods. Because exposure information this study based method not amount byproducts water, general lack could be due to concentration such byproducts.