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. 2020 Oct 9;20:101219. doi: 10.1016/j.pmedr.2020.101219

Table 1.

Maternal characteristic of those enrolled, ineligible, refused and unable to enroll in Windows Study.

Enrolled
Ineligible
Refused
Unable to enroll
n = 498 n = 102 n = 1069 n = 2379 p-value
Age, years (SD) 28.5 (6.0) 26.1 (5.6) 28.4 (5.9) 27.1 (6.1) <0.001
Race/Ethnicity, n (%)
White 308 (63.0%) 65 (64.4%) 762 (73.0%) 1532 (65.5%) <0.001
African Amerian 177 (36.2%) 35 (34.7%) 273 (26.1%) 778 (33.3%)
Other 4 (0.8%) 1 (1.0%) 9 (0.8%) 29 (1.2%)
Smoking, n (%) 84 (18.2%) 37 (39.4%) 151 (15.6%) 522 (23.7%) <0.001
Gestational diabetes, n (%) 40 (8.1%) 4 (4.0%) 90 (8.5%) 198 (8.4%) 0.461
Gestational hypertension, (%) 39 (7.9%) 8 (7.9%) 73 (6.9%) 162 (6.8%) 0.845
Preeclampsia, n (%) 73 (14.7%) 15 (14.9%) 145 (13.6%) 313 (13.2%) 0.815
Preterm birth < 37 weeks, n (%) 111 (22.3%) 21 (20.6%) 224 (21.0%) 504 (21.2%) 0.939