Table I.
Demographic variables by randomization group (mean, median and range except where indicated).
| Test group (n = 115) |
Control group (n = 95) |
|||||
|---|---|---|---|---|---|---|
| Mean | Median (SD) | Range | Mean | Median (SD) | Range | |
| Total previous pregnancies | 1.7 | 1 | 0–7 | 1.8 | 2 | 0–7 |
| Total live births | 0.95 | 1 | 0–4 | 1.11 | 1 | 0–7 |
| Total miscarriages | 0.79 | 0 | 0–5 | 0.57 | 0 | 0–4 |
| Months trying to conceive | 8.6 | 6 | 0–60 | 8.8 | 6 | 1–84 |
| Cycle length (days) | 30.56 | 29 | 25–49 | 30.57 | 30 | 25–46 |
| Height (m) | 1.65 | (0.071) | 1.42–1.80 | 1.65 | (0.066) | 1.46–1.83 |
| Weight (kg) | 73.7 | (15.82) | 49.9–114.3 | 73.1 | (18.92) | 47.6–173.0 |
| BMI (kg/m2) | 26.9 | 25.6 | 17.47–43.82 | 26.8 | 24.6 | 17.58–59.86 |
| Alcohol (units/week) | 2.41 | 0.50 | 0–15 | 2.11 | 0 | 0–10 |
| Exercise (h/week) | 3.0 | 2 | 0–20 | 3.5 | 3 | 0–21 |
| Age (years) | 28.3 | 28 | 20–40 | 29.7 | 30 | 19–39 |
| Pre-cycle 1 Period (days) | 30.76 | 23 | 9–243 | 29.75 | 27 | 5–127 |
| Smoking History | ||||||
| Yes | 10 (8.7%) | 4 (4.2%) | ||||
| Ex | 30 (26.1%) | 45 (21.4%) | ||||
| No | 75 (65.2%) | 76 (80.0%) | ||||
| Previous ovulation test use | ||||||
| Yes | 59 (51.3%) | 60 (63.2%) | ||||
| No | 56 (48.7%) | 35 (36.8%) | ||||