| Intervention (N = 92) | Control (N = 100) | P-value |
---|---|---|---|
Age (mean; SD) | 30.4 (4.1) | 29.9 (4.5) | 0.43 |
Caucasian (%; N) | 93.5 (86) | 95.0 (95) | 0.65 |
Body Mass Index (kg/m2; mean; SD)b | 35.9 (3.3) | 35.8 (3.1) | 0.73 |
Education level (%; N) | Â | Â | Â |
 No education or primary school (4–12 years) | 4.5 (4) | 1.0 (1) | 0.52 |
 Secondary education | 20.2 (18) | 21.4 (21) | |
 Intermediate Vocational Education | 51.7 (46) | 55.1 (54) | |
 Higher Vocational Education and University | 23.6 (21) | 22.4 (22) | |
Smoking (yes; %; N) | 22.0 (20) | 17.2 (17) | 0.40 |
Nulliparous (yes; %; N) | 75.0 (69) | 73.0 (73) | 0.75 |
Anovulatory (yes; %; N) | 46.7 (43) | 53.0 (53) | 0.39 |
PCOS (yes; %; N) | 35.9 (33) | 42.0 (42) | 0.38 |
Duration infertility (months; median; IQR) | 22.0 (15.0; 37.0) | 17.0 (13.0; 25.8) | 0.02 |
Pregnant after randomisation (yes; %; N)c | 68.5 (63) | 76.0 (76) | 0.24 |