Table 1.
Comparison of partners by select characteristics, LIFE Study.
| Characteristic | Female Partners (n=501) | Male Partners (n=501) |
|---|---|---|
| n (%) | n (%) | |
| Nonhispanic white race/ethnicity | 393 (78.9) | 394 (79.1) |
| College/technical education | 470 (94.6) | 452 (91.1) |
| Health insurance | 458 (92.0) | 456 (91.6) |
| No live birthsa | 263 (52.8) | 259 (52.0) |
| Mean ( ±SD) | Mean (±SD) | |
| Age (years) | 30.0 (±4.1) | 31.8 (±4.9) |
| Body mass index (kg/m2) | 27.6 (±7.3) | 29.8 (±5.6) |
| Geometric mean (95% CI) | Geometric Mean (95% CI) | |
| Urinary creatinine (mg/dl)b | 67.13 (61.92, 72.78) | 115.87 (108.34, 123.93) |
| Serum cotinine (ng/ml)b | 0.06 (0.05, 0.08) | 0.22 (0.16, 0.31) |
a
Includes 210 women reporting never having been pregnant, and 215 men who reported never fathering a live birth.