Table 1.
Demographic characteristics of 137 women participating in the EARTH study included in the present analysis.
| Demographic factor | n (%) |
|---|---|
| Race | |
| Caucasian | 124 (91) |
| African American | 2 (1) |
| Asian | 8 (6) |
| Other | 3 (2) |
| Hispanic | |
| No | 135 (99) |
| Yes | 2 (1) |
| Education | |
| < Bachelor’s degree | 6 (5) |
| Bachelor’s degree | 51 (40) |
| Graduate degree | 70 (55) |
| Missing | 10 |
| Maternal age at enrollment (years) | |
| < 30 | 16 (12) |
| 30 to < 35 | 44 (32) |
| 35 to < 40 | 61 (45) |
| ≥ 40 | 16 (12) |
| Conception method | |
| Natural | 11 (8) |
| Intrauterine insemination | 81 (59) |
| In vitro fertilization | 45 (33) |