Table 1 Characteristics of the sample population
From: Impact of prenatal phthalate exposure on newborn metabolome and infant neurodevelopment
Characteristic | Visit 1 (8–14 weeks) | Visit 2 (24–30 weeks) | ||
|---|---|---|---|---|
Main sample = 216 | Subset = 81 | Main sample = 145 | Subset = 71 | |
Median (IQR) | Median (IQR) | |||
Age at enrollment | 24 (21.0, 29.0) | 24.0 (21.0, 29.0) | 24 (21.0, 29.0) | 24 (21.0, 29.0) |
Pre-pregnancy BMI (kg/m2) | 28 (23, 34) | 27 (24, 34) | 26 (22, 33) | 26 (23, 34) |
Gestational age | 11.29 (9.29, 13.00) | 11.57 (9.29, 13.29) | 25.43 (24.57, 27.57) | 25.43 (24.36, 27.36) |
Creatinine (mg/dL) | 178 (122, 228) | 180 (128, 229) | 139 (100, 202) | 143 (100, 205) |
n (%) | n (%) | |||
Education | ||||
<High school | 34 (16) | 11 (14) | 20 (14) | 8 (11) |
High school | 91 (42) | 35 (43) | 58 (40) | 31 (44) |
Some college or more | 91 (42) | 35 (43) | 67 (46) | 32 (45) |
Parity | ||||
No prior birth | 92 (43) | 33 (41) | 61 (42) | 30 (42) |
Prior birth | 124 (57) | 48 (59) | 84 (58) | 41 (58) |
Alcohol use | ||||
No | 194 (90) | 72 (89) | 130 (90) | 63 (89) |
Yes | 22 (10) | 9 (11) | 15 (10) | 8 (11) |
Tobacco use | ||||
No | 177 (82) | 69 (85) | 123 (85) | 62 (89) |
Yes | 39 (18) | 12 (15) | 22 (15) | 9 (13) |
Marijuana use | ||||
No | 128 (59) | 51 (63) | 89 (61) | 45 (63) |
Yes | 88 (41) | 30 (37) | 56 (39) | 26 (37) |
Sex of baby | ||||
Male | 102 (47) | 43 (53) | 68 (47) | 35 (49) |
Female | 114 (53) | 38 (47) | 77 (53) | 36 (51) |
