Table 1.
Population characteristics for controls and cases in CPP and EVITA by race.
| CPP |
EVITA |
CPP |
EVITA |
|
|---|---|---|---|---|
| Black maternal race: n = 613 Number (%) | Black maternal race: n = 269 Number (%) | White maternal race: n = 606 Number (%) | White maternal race: n = 923 Number (%) | |
| 25(OH)D (nmol/L)* | ||||
| <25 | 147(22) | 33(12) | 33(5) | 6(1) |
| 25–50 | 303(46) | 109(41) | 199(33) | 75(8) |
| 50–75 | 126(19) | 93(34) | 219(36) | 368(40) |
| ≥75 | 84(13) | 34(13) | 155(26) | 474(51) |
| Seasona | ||||
| Winter | 148(22) | 56(21) | 145(24) | 194(21) |
| Spring | 165(25) | 78(29) | 158(26) | 267(29) |
| Summer | 178(27) | 65(24) | 139(23) | 231(25) |
| Fall | 169(26) | 70(26) | 164(27) | 231(25) |
| Mean sample age** | 20.2 ±0.17 weeks | 15.0 ±0.17 weeks | 18.9 ±0.22 weeks | 15.0 ±0.08 weeks |
| BMI* | ||||
| <18.5 | 73(11) | 13(5) | 55(09) | 18(2) |
| 18.5–24.9 | 442(67) | 100(37) | 466(77) | 462(50) |
| 25–29.9 | 112(17) | 65(24) | 67(11) | 258(28) |
| ≥30 | 33(5) | 91(34) | 18(3) | 185(20) |
| Education* | ||||
| Less than HS | 390(59) | 51(19) | 242(40) | 212(23) |
| 12 | 204(31) | 108(40) | 218(36) | 212(23) |
| >12 | 66(10) | 110(41) | 146(24) | 508(55) |
| Smoker* | ||||
| Yes | 455(69) | 49(13) | 339(56) | 92(10) |
| No | 205(31) | 329(87) | 267(44) | 514 (90) |
| <20* | 186(29) | 51(19) | 103 (17) | 28(3) |
| 20–29 | 380(57) | 156(58) | 406(0.67) | 341(37) |
| ≥30 | 94(14) | 62(23) | 97(16) | 554(60) |
| Nulliparity | ||||
| 0 | 201(30) | 132(49) | 218(36) | 443(48) |
| 1 or more | 459(70) | 137(51) | 388(64) | 480(52) |
a
Winter (December–February), spring (March–May), summer (June–August), and fall (September–November).
*
p-value <0.05 for chi-square tests across the four race-study groups.
**
p-value < 0.05 for test of homogeneity of means between the four race-study groups.