Table 1.
Pregnant women’s characteristics by maternal history of physician diagnosed asthma according to the intention to treat population of VDAART (N=816)*
| Features | Asthma (N=327) |
No asthma (N=489) |
|---|---|---|
|
| ||
| Preeclampsia (N, %) | ||
| Yes | 29 (8.9) | 38 (7.4) |
| No | 298 (91.1) | 451 (92.6) |
|
| ||
| Maternal monthly visits during pregnancy (N) | ||
| Median | 5 | 5 |
| Range | 1–7 | 1–7 |
|
| ||
| Gestational age (weeks) | ||
| Mean (SD)a | 14.2 (2.8) | 14.26 (2.8) |
| Median | 13.7 | 13.7 |
| Range | 10–18 | 10–18 |
|
| ||
| Age (years) | ||
| Mean (SD) | 25.67 (5.45) | 27.79 (5.49) |
| Range | 18.0–38.77 | 18–39.52 |
|
| ||
| Vitamin D level at 10–18 weeks (ng/ml) | ||
| Mean (SD) | 22.65 (10.3) | 23.15 (10.2) |
| Range | 4.6–65.3 | 4.5–80.8 |
| 95% central rangeb | 6.3–46.2 | 6.9–44.6 |
| Sufficiency status at 10–18 weeks (N, %) | ||
| <15 (ng/ml) | 74 (26.6) | 104 (21.3) |
| 15–29.9 (ng/ml) | 180(55) | 276 (56.4) |
| >30 (ng/ml) | 71 (21.7) | 106 (21.7) |
| N missing | 2 (3.4) | 3 (1.6) |
|
| ||
| Number of pregnancies | ||
| Median | 2 | 2 |
| Range | 1–11 | 1–13 |
| 95% central range | 1–6 | 1–6 |
| Category status (N, %) | ||
| 1st | 107 (32.7) | 179 (36.1) |
| 2nd | 81 (24.8) | 126 (25.8) |
| 3rd | 63 (19.3) | 100 (20.4) |
| >3 | 76 (23.2) | 84 (17.7) |
|
| ||
| Site (N, %) | ||
| Boston | 112 (34.2) | 165 (37.3) |
| San Diego | 96 (29.4) | 147 (30.3) |
| St. Louis | 119 (36.4) | 177 (32.4) |
|
| ||
| Trial arm (N, %) | ||
| Vitamin D intervention | 173 (52.9) | 235 (48.1) |
| Control | 154 (47.1) | 254 (51.9) |
|
| ||
| Gestational diabetes (N, %) | ||
| Yes | 19 (6.0) | 28 (5.7) |
| No | 307 (94.0) | 461 (94.3) |
|
| ||
| Body mass index at first appointment (kg/m2) | ||
| Mean (SD) | 30 (7.8) | 28.2 (7.1) |
| Range | 17.9–61.9 | 16.3–56.4 |
| 95% central range | 24.1–53.1 | 23.1–45.2 |
|
| ||
| Race (N, %) | ||
| African American | 152 (46.5) | 203 (42.5) |
| Non-African American | 175 (53.5) | 286 (58.5) |
| White | 125 (38.2) | 204 (41.7) |
| American Indian or Alaska | 5 (1.5) | 4 (0.8) |
| Asian | 9 (2.8) | 28 (5.7) |
| Native Hawaiian | 4 (1.2) | 7(1.4) |
| Other | 32 (9.8) | 43 (8.8) |
|
| ||
| Gestational age at delivery (weeks) | ||
| Mean (SD) | 38.75 (2.1) | 38.8 (2.4) |
| Range | 23.3–42.1 | 21–42.3 |
|
| ||
| Maternal marital status (N, %) | ||
| Not Married/Divorced | 190 (58.1) | 254 (51.1) |
| Married | 137 (51.9) | 235 (48.9) |
|
| ||
| Education completed (N, %) | ||
| less than high school | 49 (14.9) | 53 (10.8) |
| high school, technical school | 98 (30) | 146 (29.9) |
| some college | 84 (25.7) | 110 (22.5) |
| college graduate/graduate school | 96 (29.7) | 180 (36.8) |
|
| ||
| Annual Family Income | ||
| <$50,000 | 151 (46.2) | 193 (39.5) |
| >$50,000 | 95 (29.0) | 177 (36.2) |
| Unknown or Refused | 81 (24.8) | 119 (24.3) |
a
Standard deviation
b
95% central range is defined by the 2.5th and 97.5th percentiles of the values.
*
All P values of pairwise comparisons between characteristics of subjects with preeclampsia and without preeclampsia > 0.05