Table 1.
Comparison of male characteristics by semen sample status.
| Overall (n = 501) | Provided sample (n = 473) | No sample (n = 28) | |
|---|---|---|---|
| Age categories | n (%) | n (%) | n (%) |
| <30 | 176 (35.1) | 167 (35.3) | 9 (32.1) |
| 30–40 | 303 (60.5) | 285 (60.3) | 18 (64.3) |
| 40+ | 22 (4.4) | 21 (4.4) | 1 (3.6) |
| Age (years), mean ± SD | 31.8 ± 4.9 | 31.8 ± 4.9 | 31.7 ± 5.9 |
| BMI categories | |||
| Under/healthy (BMI < 25) | 84 (16.9) | 81 (17.3) | 3 (10.7) |
| Overweight (25 <= BMI < 30) | 206 (41.5) | 192 (41.0) | 14 (50.0) |
| Obese (30 <= BMI <35) | 131 (26.4) | 122 (26.1) | 9 (32.1) |
| Morbidly Obese (BMI >= 35) | 75 (15.1) | 73 (15.6) | 2 (7.1) |
| BMI (kg/m2) mean ± SD | 29.8 ± 5.6 | 29.9 ± 5.6 | 29.2 ± 4.0 |
| Race/Ethnicity* | |||
| Non-Hispanic White | 394 (79.1) | 381 (80.9) | 13 (48.1) |
| Non-Hispanic Black | 23 (4.6) | 20 (4.2) | 3 (11.1) |
| Hispanic | 45 (9.0) | 38 (8.1) | 7 (25.9) |
| Other | 36 (7.2) | 32 (6.8) | 4 (14.8) |
| Conditional Parity | |||
| No pregnancies | 215 (43.2) | 206 (43.7) | 9 (33.3) |
| Never fathered a pregnancy | 44 (8.8) | 40 (8.5) | 4 (14.8) |
| Fathered a pregnancy | 239 (48.0) | 225 (47.8) | 14 (51.9) |
| Income | |||
| < $50,000 | 77 (15.7) | 71 (15.3) | 6 (22.2) |
| $50,000 – $99,000 | 237 (48.3) | 227 (48.9) | 10 (37.0) |
| at least $100,000 | 177 (36.0) | 166 (35.8) | 11 (40.7) |
*
p-values < 0.05 are from independent t-test for continuous characteristics or chi-square test for categorical characteristics.