Table 1 Baseline characteristics
Demographic characteristics | |
|---|---|
Variables | Median (IQR)/n (%) |
Age (years) | 30 (7) |
Ethnicity | |
Yoruba | 141 (87.6) |
Igbo | 6 (3.7) |
Hausa | 1 (0.6) |
Others | 13 (8.1) |
Lifestyle characteristics | |
Body mass index (kg/m2) | 25 (7.33) |
Alcohol intake | |
No | 142 (88.2) |
Yes | 19 (11.8) |
Caffeine intake | |
No | 49 (30.4) |
Yes | 112 (69.6) |
Past smoking | |
No | 160 (99.4) |
Yes | 1 (0.6) |
Current smoking | |
No | 161 (100) |
Yes | 0 (0) |
Passive smoking | |
No | 145 (90.1) |
Yes | 16 (9.9) |
Reproductive characteristics | |
Age at menarche (years) | 15 (2) |
Cycle length (days) | 28 (3) |
Cycle regularity | |
No | 21 (13.0) |
Yes | 140 (87.0) |
Dysmenorrhoea | |
No | 85 (52.8) |
Yes | 76 (47.2) |
Past hormonal contraceptive use | |
No | 147 (91.3) |
Yes | 14 (8.7) |
Parity | 1 (2) |
History of infertility | |
No | 89 (55.3) |
Yes | 72 (44.7) |
Duration of infertility (years) | 4 (3) |