To compared pregnancy outcome (Serum vitamin D level in mother and infant , preeclampsia rate, preterm birth rate, Infant birth weight, Infant length , APGAR score) between pregnant women who were given vitamin D supplementation and pregnant women who were given placebo
No linked publications found in PubMed
Inclusion Criteria: * Thai female * Singleton pregnancy * Age at 18 years old or more * Gestational age at 18-22 weeks * Accept to enroll Exclusion Criteria: * Pregnant women who not planned to delivery at Rajavithi hospital * Abnormal kidney function * Use antiepileptic drugs , or vitamin D supplementation * Allergy to vitamin D * Who were diagnosed as vitamin D deficiency