Table 1.
Baseline characteristics of couples. Values are numbers (percentages) unless stated otherwise
| Characteristic | IVF-SET (n=201) | IVF-MNC (n=194) | IUI-COH (n=207) |
|---|---|---|---|
| Mean (SD) age of female partner, years | 33 (3.39) | 33 (3.50) | 34 (3.67) |
| Primary subfertility | 160 (80) | 141 (73) | 157 (76) |
| Median (IQR) duration of subfertility, years | 2.13 (1.73-3.01) | 2.14 (1.77-2.81) | 2.30 (1.82-3.13) |
| White | 182 (91) | 163 (84) | 178 (86) |
| Smoking | 45 (22) | 35 (18) | 46 (22) |
| Median (IQR) body mass index, kg/m2 | 23 (21-26) | 23 (21-25) | 23 (21-26) |
| Median (IQR) total motile sperm count (×106) | 51 (25-100) | 53 (25-126) | 59 (30-124) |
| Diagnosis of subfertility: | |||
| Unexplained | 183 (91) | 173 (89) | 189 (91) |
| Male factor | 18 (9) | 21 (11) | 18 (9) |
| Mean (SD) Hunault score* | 20 (6.56) | 21 (6.83) | 19 (6.38 ) |
IQR=interquartile range; IUI-COH=intrauterine insemination with controlled ovarian hyperstimulation; IVF-MNC=in vitro fertilisation in modified natural cycle; IVF-SET=in vitro fertilisation with single embryo transfer.
*Calculated according to formula by Van der Steeg et al 2007.7