Table 1.
Demographic and clinical characteristics.
| Whole population N=99 |
Miscarriage N=18 |
Ongoing pregnancy N=81 |
p-value | ||
|---|---|---|---|---|---|
| Age (years) | |||||
| Median (min; max) | 34.00 (20.00; 43.00) | 34.50 (25.00; 40.00) | 34.00 (20.00; 43.00) | 0.377 | |
| < 35 | 58 (58.59) | 9 (50.00) | 49 (60.49) | 0.626 | |
| [35-40[ | 24 (24.24) | 5 (27.78) | 19 (23.46) | ||
| ≥ 40 | 17 (17.17) | 4 (22.22) | 13 (16.05) | ||
| BMI (kg/m2) | |||||
| Median (min; max) | 22.80 (17.76; 35.46) | 23.34 (17.97; 33.31) | 22.77 (17.76; 35.46) | 0.959 | |
| Lean | 4 (4.65) | 1 (6.67) | 3 (4.23) | 0.815 | |
| Normal weight | 53 (61.63) | 8 (53.33) | 45 (63.38) | ||
| Overweight | 21 (24.42) | 5 (33.33) | 16 (22.54) | ||
| Moderate obesity | 6 (6.98) | 1 (6.67) | 5 (7.04) | ||
| Severe obesity | 2 (2.33) | 0 (0.00) | 2 (2.82) | ||
| Missing | 13 | 3 | 10 | ||
| Smoking status | |||||
| Median (min; max) | 0.00 (0.00; 35.00) | 0.00 (0.00; 35.00) | 0.00 (0.00; 20.00) | 0.959 | |
| Non-smoker | 59 (74.68) | 10 (76.92) | 49 (74.24) | 1.000 | |
| Smoker | 20 (25.32) | 3 (23.08) | 17 (25.76) | ||
| Non-smoker | 59 (74.68) | 10 (76.92) | 49 (74.24) | 0.777 | |
| 1 to 9 cigarettes/day | 11 (13.92) | 1 (7.69) | 10 (15.15) | ||
| >10 cigarettes/day | 9 (11.39) | 2 (15.38) | 7 (10.61) | ||
| Missing | 20 | 5 | 15 | ||
| Infertility cause | 0.825 | ||||
| Female | 32 (34.04) | 7 (41.18) | 25 (32.47) | ||
| Male | 36 (38.30) | 5 (29.41) | 31 (40.26) | ||
| Idiopathic | 12 (12.77) | 2 (11.76) | 10 (12.99) | ||
| Mixed | 14 (14.89) | 3 (17.65) | 11 (14.29) | ||
| Missing | 5 | 1 | 4 | ||
| Ovarian stimulation protocol | 0.190 | ||||
| Agonist | 20 (20.20) | 6 (33.33) | 14 (17.28) | ||
| Antagonist | 79 (79.80) | 12 (66.67) | 67 (82.72) | ||
| Estradiol on trigger day or the day before (pg/mL) |
Median (min; max)
Missing |
1652 (564; 3016) 26 |
1932 (696; 3014) 5 |
1596.5 (564; 3016) 21 |
0.453 |
| Number of follicles ≥14mm on trigger day or the day before |
Median (min; max)
Missing |
8 (0; 18) 28 |
6 (0; 15) 6 |
8 (1; 18) 22 |
0.161 |
| Duration of ovarian stimulation (days) | Median (min; max) | 11 (8; 15) | 11 (8; 13) | 11 (8; 15) | 0.415 |
| Number of transferred embryos | 0.765 | ||||
| Median (min; max) | 1.00 (1.00; 2.00) | 1.00 (1.00; 2.00) | 1.00 (1.00; 2.00) | ||
| Stage of transferred embryos | 0.790 | ||||
| Blastocysts | 48 (51.61) | 8 (47.06) | 40 (52.63) | ||
| Cleaved embryos | 45 (48.39) | 9 (52.94) | 36 (47.37) | ||
| Missing | 6 | 1 | 5 | ||
| Double transfer | Yes | 6 (6.06) | 1 (5.56) | 5 (6.17) | 1.000 |