TABLE 3.
Obstetrical outcomes
| Outcome | Finland, mean OR, % a | Bpnx, n = 37 | Bp, n = 15 | M, n = 15 | p value |
|---|---|---|---|---|---|
| Age (y) at the delivery, median (IQR) | 31 | 29 (20–38) | 32 (27–34) | 30 (28–32) | 0.660 |
| Parity one | 29 | 28 (26–33) | 33 (32–36) | 28 (28–28) | 0.257 |
| Multipara | N/A | 30 (27–33) | 29 (26–34) | 30 (25–36) | 0.920 |
| Ethnic: Caucasian, n (%) | N/A | 36 (97) | 15 (100) | 15 (100) | 1.000 |
| Partus, n (%) | 0.367 | ||||
| Parity one | 41 | 6 (16) | 4 (27) | 1 (7) | |
| Multipara | 59 | 31 (84) | 11 (74) | 14 (93) | |
| First visit to maternal outpatient clinic, n (%) | 0.647 | ||||
| First trimester | N/A | 23 (66)2 | 10 (77)2 | 8 (53) | |
| Second trimester | N/A | 6 (17) | 2 (15) | 5 (33) | |
| Third trimester | N/A | 6 (17) | 1 (8) | 2 (13) | |
| Pregnancy complications, n (%) | 0.138 | ||||
| Gestational diabetes mellitus | 21 | 5 (14) | 4 (27) | 4 (27) | |
| Pre‐eclampsia | 4 | 0 | 1 (7) | 0 | |
| Premature rupture of membranes | 1 (3) | 2 (13) | 0 | ||
| Placenta previa | 0 | 1 (7) | 0 | ||
| Other b | 4 (11) | 0 | 1 (7) | ||
| Mode of delivery, n (%) | 0.698 | ||||
| Vaginal | 74 | 30 (81) | 11 (73) | 12 (80) | |
| Instrumental | 9 | 0 | 1 (7) | 0 | |
| Cesarean section | 17 | 7 (19) | 3 (20) | 3 (20) | |
| Emergency, n | 4 | 2 | 3 | ||
| First stage of the delivery (min), median (IQR) | |||||
| Parity one | N/A | 594 (201;730) | 510 (450;510) | N/A | 0.724 |
| Multipara | N/A | 323 (196–652)1 | 483 (234–746) | 280 (160–350) | 0.189 |
| Second stage of the delivery (min), median (IQR) | |||||
| Para one | N/A | 23 (13–36) | 45 (34–45) | N/A | 0.077 |
| Multipara | N/A | 9 (7–19)1 | 14 (6–31) | 17 (8–25) | 0.544 |
Abbreviations: Bpnx, buprenorphine‐naloxone; Bp, buprenorphine; IQR, interquartile range; M, methadone; N/A, not available; X n , missing data (n).
a
Finnish general population. 14
b
Other pregnancy complications include hypertension, infections, blood‐stained discharge, Rhesus immunization, hepatogestosis, oligohydramnios, fetal growth retardation (n = 1), and intrauterine asphyxia.