Mosalanejad 2016.

Trial name or title	Compare the effect of vitamin D and calcium plus vitamin D on pregnancy outcomes in pregnant women
Methods	Randomised single‐blind controlled clinical trial
Participants	Pregnant women (from 20 years old to 40 years old). Gestational age of less than 10 weeks; with no history of diabetes; hypertension; a history of polycystic ovary syndrome; lack of family history of diabetes in first‐degree relatives; no family history of high blood pressure in first‐degree relatives; BMI between 19‐26; lack of vitamin D during the last 6 months; singleton pregnancy.
Interventions	Intervention group: vitamin D3 1000 units oral/daily starting at 16 weeks GA until the end of pregnancy. Routine prenatal care multi vitamin containing 400 units vitamin ca‐D was also simultaneously prescribed. The control group received a multivitamin that had 400 unit vitamin ca‐D daily from 16 weeks GA until the end of pregnancy.
Outcomes	Maternal Primary GDM Pre‐eclampsia Secondary 25‐hydroxyvitamin D (25OHD) Infants Primary Preterm birth Secondary Not available
Starting date	21 March 2015 (expected)
Contact information	Dr Najmehsadat Mosalanejad Phone: +98 76 3333 7192 Email address: mosalanejad@hums.ac.ir
Notes	Funding: study funded by the Hormozgan University of Medical Sciences Declarations of interest among primary researchers: NA City/country: Bandarabas/Iran