Table 1.
Participant characteristics
| Women |
|||
|---|---|---|---|
| Measurement | Men | NAT group | OCP group |
| Age, yr | 21 ± 1 | 22 ± 3 | 22 ± 3 |
| Body mass index, kg/m2 | 24 ± 3 | 22 ± 2 | 23 ± 4 |
| Cycle length, days | 32 ± 4 | 28 ± 0 | |
| OCP duration, mo | 41 ± 34 | ||
| Generation of OCP, n | |||
| Second | 10 | ||
| Third | 3 | ||
| Fourth | 5 | ||
Values are means ± SD; n = 20 men, 15 women in the naturally cycling (NAT) group, and 18 women in the oral contraceptive pill (OCP) group. One-way ANOVA was used for age and body mass index. No differences in age or body mass index between groups were found (P > 0.05 for both).