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. Author manuscript; available in PMC: 2021 Dec 29.
Published in final edited form as: Pediatr Res. 2020 Apr 20;89(3):554–562. doi: 10.1038/s41390-020-0885-7

Table 1:

Baseline characteristics of the study population, stratified by treatment groups (400 and 4400 IU).

Characteristics 400 IU Group
(n = 107)
4400 IU Group
(n = 110)

Maternal age, years, mean (sd) 28.9 (5.29) 28.3 (4.69)

BMI at first visit*, kg/m2, mean (sd) 29.5 (7.95) 28.5 (6.80)

25(OH)D*, ng/mL, mean (sd) 25.2 (9.55) 24.5 (9.03)

Parity, median (IQR) 1 (2) 1 (1)

Race
 White/Caucasian, n (%) 38 (35.5) 35 (31.8)
 Black/African American, n (%) 37 (34.6) 38 (34.6)
 Hispanic, n (%) 32 (29.9) 37 (33.6)

Education
 Less than high school, n (%) 21 (19.6) 13 (11.8)
 High school, n (%) 58 (54.2) 70 (63.6)
 Some college, n (%) 28 (26.2) 27 (24.6)

Smoking status
 Never, n (%) 86 (80.4) 92 (83.6)
 Current/Former, n (%) 21 (19.6) 18 (16.4)

Insurance Status
 Private, n (%) 38 (35.5) 41 (37.3)
 Medicaid/none, n (%) 69 (64.5) 69 (62.7)