Table 1.
Maternal characteristics for 623 case families and 875 control families
| Control (N=875) | Case (N=623) | P-value | |
|---|---|---|---|
|
|
|||
| Age at delivery, mean (SD) | 27.7 (5.9) | 28.2 (5.9) | 0.10 |
| Mother’s race | 0.65 | ||
| African American | 88 (10%) | 53 (8.5%) | |
| Caucasian | 620 (71%) | 456 (73%) | |
| Hispanic | 124 (14%) | 81 (13%) | |
| Others | 42 (4.8%) | 32 (5.1%) | |
| Missing information | 1 | 1 | |
| Mother’s education, N (%) | 0.65 | ||
| <12 years | 117 (13%) | 72 (12%) | |
| High school degree | 209 (24%) | 162 (26%) | |
| 1–3 years of college | 244 (28%) | 174 (28%) | |
| At least 4 years of college or Bachelor degree | 305 (35%) | 215 (35%) | |
| Missing information | 0 | 0 | |
| Household income, N (%) | 0.97 | ||
| Less than 10 Thousand | 112 (14%) | 84 (14%) | |
| 10 to 30 Thousand | 236 (29%) | 167 (28%) | |
| 30 to 50 Thousand | 190 (23%) | 142 (24%) | |
| More than 50 Thousand | 285 (35%) | 203 (34%) | |
| Missing information | 52 | 27 | |
| Folic acid supplementation, N (%) | 0.15 | ||
| Unexposed | 372 (43%) | 288 (46%) | |
| Exposed | 503 (57%) | 335 (54%) | |
| Missing information | 0 | 0 | |
| Alcohol consumption, N (%) | 0.62 | ||
| Unexposed | 681 (78%) | 479 (77%) | |
| Exposed | 191 (22%) | 143 (23%) | |
| Missing information | 3 | 1 | |
| Cigarette smoking, N (%) | 0.91 | ||
| Unexposed | 720 (82%) | 511 (82%) | |
| Exposed | 154 (18%) | 111 (18%) | |
| Missing information | 1 | 1 | |
| Maternal Obesity, N (%) | 0.23 | ||
| Non-Obese (BMI<30) | 681(81%) | 467 (77%) | |
| Obese (BMI>=30) | 158 (19%) | 138 (23%) | |
| Missing information | 26 | 18 | |