Table II.
Characteristic | Women N = 799 | Men N = 487 |
---|---|---|
Age (years) | ||
Mean (SD) | 34.7 (4.5) | 36.6 (5.4) |
Age > 35, n (%) | 345 (43) | 273 (56) |
Race, n (%) | ||
White | 651 (81) | 419 (86) |
Black | 39 (5) | 15 (3) |
Asian | 71 (9) | 34 (7) |
Other | 38 (5) | 19 (4) |
BMI (kg/m2) | ||
Mean (SD) | 24.6 (4.9) | 27.5 (4.5) |
BMI > 25, n (%) | 283 (35) | 346 (71) |
Education, n (%) | ||
<College | 60 (8) | 55 (11) |
College graduate | 231 (29) | 136 (28) |
Graduate degree | 392 (49) | 198 (41) |
Missing | 116 (14) | 98 (20) |
Smoking status, n (%) | ||
Never | 583 (73) | 327 (67) |
Former | 192 (24) | 131 (27) |
Current | 24 (3) | 29 (6) |
Primary infertility diagnosis, n (%) | ||
Male factor | 196 (24) | 146 (30) |
Female factor | 285 (36) | 166 (34) |
Diminished ovarian reserve | 90/285 | |
Ovulation disorders | 106/285 | |
Endometriosis | 36/285 | |
Uterine disorders | 11/285 | |
Tubal factor | 42/285 | |
Unexplained | 318 (40) | 175 (36) |
Nulliparous at study entry, n (%) | ||
698 (87) | – | |
Live births, n (%) | ||
Singletons, n (%) | 387/563 (69) | |
Multiples, n (%) | 176/563 (31) |