Table 1.

NCS Vanguard Study Recruitment, September 2010

Recruitment Activities		Percent
Potential households to contact ~80000	Households contacted 67177	86%
Women identified in households ~32740	Completed pregnancy screener 30063	92%
Women meeting eligibility criteria 2425 (~0.8% of 30063 women screened)	Eligible women identified through telephone call center 560 (of 2425)	23%
Women who could enroll 2229 (196 of 2425 potentially eligible women changed status after screening)	Women who did enroll 1397 (of 2229)	63%
Pregnant when enrolled 968 (of 1397 women enrolled)	Not pregnant when enrolled 429 (of 1397 of women enrolled)	70%/30%
Pregnant women who completed first pregnancy data collection 810 (of 968 pregnant women enrolled)	Non-pregnant women who completed pre-conception visit 305 (of 429 non-pregnant women enrolled)	84%/71%
Children born into the study 594