Study population & location	25(OH) D (ng/mL) mean (SD)	Vitamin D status			Reference
Study population & location	25(OH) D (ng/mL) mean (SD)	% Deficient	% Insufficient	% Sufficient	Reference
N = 139 Pregnant women, Lucknow, age 26.7 (4.1) yrs.	15.12 ± 7.92	74%	-	-	Sahu M. et al. [17] (2009)
N = 260 Pregnant women + girls in summer (subclass).	22.2 ± 7.92	54%	-	-
N = 260 Pregnant women + girls in winter (subclass).	10.92 ± 4.92	93%	-	-
N = 207 Pregnant women, Lucknow, age 24 ± 4.1 yrs.	14 ± 9.3	84.05%	-	-	Sachan A. et al. [18] (2005)
N = 140 Urban females (subclass).	14.0 ± 9.5	84.3%	-	-
N = 67 Rural females (subclass).	14.1 ± 8.9	83.6%	-	-
N = 207 Neonates/cord blood.	8.4 ± 5.7	95.7%	-	-
N = 42 Pregnant women, Western India, age 20 - 35 yrs.	22.99 ± 10.93	50%^#	-	-	Bhalala U. et al. [19] (2007)
N = 42 Cord blood/neonates.	19.36 ± 9.57	62%^#	-	-	Bhalala U. et al. [19] (2007)
N = 559 Pregnant women, Mysore, age 24 yrs.	Median 15.12 (9.6 - 23.4)	66.5%	-	-	Farrant H.J. et al. [20] (2009)
N = 20 Pregnant women, Delhi, age 28.05 ± 0.89 yrs.	16.24 ± 4.36	75%	10%	15%	Agarwal N. et al. [21] (2011)
N = 21 Cord blood.	15.28 ± 3.36	81%	9.5%	9.5%	Agarwal N. et al. [21] (2011)
N = 568 Pregnant women, Mysore.	Median 15 (9.6, 23.2)	67%	-	-	Krishnaveni G.V. et al. [22] (2011)
N = 521 Pregnant women, Delhi, age 24.6 (2.8) yrs.	9.28 ± 4.88	96.3%	-	-	Marwaha R.K. et al. [23] (2011)
N = 50 Pregnant women, Guwahati, age 20 - 40 yrs.	NM	42%	14%	-	Dasgupta A. et al. [24] (2012)
N = 180 Pregnant women HIV-infected, Pune, age 23 (21 - 25) yrs.	Median 15.25 (10.0 - 18.25)	24%*	98%	-	Mave V. et al. [25] (2012)
N = 48 Pregnant women, Lucknow, age 26.3 yrs.	Median 12.68 (5.6 - 22.88)	-	-	-	Kalra P. et al. [26] (2012)
N = 49 Pregnant women, age 27 yrs.	Median 12.8 (5.8 - 18.28)	-	-	-	Kalra P. et al. [26] (2012)
N = 150 Pregnant women, Mumbai, age 20 - 35 yrs.	Affluent group: 11.8 (10.8, 12.9) nonaffluent: 9.8 (9.1, 10.6)	93.75% (Affluent 91.2%, nonaffluent 96.3%)	6.25 % (Affluent 8.8%, nonaffluent 3.7%)	-	Jani R. et al. [27] (2014)