Table 2 Association of individual characteristics and unit policy of tocolysis after PPROM.
Individual characteristics | Unit policy regarding the use of tocolysis after PPROM | p-value | ||
|---|---|---|---|---|
No-use n = 101 (17 units) | Restricted n = 195 (32 units) | Liberal n = 311 (45 units) | ||
Mother’s age (years) (n = 604) | ||||
≤20 | 7 (7.0) | 16 (8.2) | 13 (4.2) | 0.19 |
21–34 | 60 (60.0) | 129 (66.5) | 215 (69.3) | |
≥35 | 33 (33.0) | 49 (25.3) | 82 (26.5) | |
Mother born in Europe (n = 532) | 60 (84.5) | 127 (74.3) | 240 (82.8) | 0.054 |
Nulliparity (n = 605) | 46 (45.5) | 88 (45.1) | 154 (49.8) | 0.53 |
GA at PPROM (weeks) (n = 607) | ||||
24 | 10 (9.9) | 25 (12.8) | 35 (11.3) | 0.42 |
25 | 14 (13.9) | 25 (12.8) | 57 (18.3) | |
26 | 8 (7.9) | 30 (15.4) | 50 (16.1) | |
27 | 15 (14.9) | 29 (14.9) | 43 (13.8) | |
28 | 25 (24.7) | 37 (19.0) | 52 (16.7) | |
29 | 29 (28.7) | 49 (25.1) | 74 (23.8) | |
In utero transfer (n = 599) | 29 (29.6) | 74 (38.1) | 152 (49.5) | <0.001 |
Antenatal steroids (n = 594) | ||||
None | 1 (1.0) | 6 (3.2) | 7 (2.3) | 0.20 |
Uncomplete course | 4 (4.0) | 20 (10.7) | 32 (10.4) | |
Complete course | 95 (95.0) | 161 (86.1) | 268 (87.3) | |
Magnesium sulfate (n = 563) | 1 (1.0) | 3 (1.7) | 7 (2.4) | 0.77 |
Spontaneous onset of labor (n = 602) | 60 (59.4) | 121 (62.7) | 209 (67.9) | 0.23 |
Induction of labor or cesarean before labor because of suspected infection (n = 163) | 19 (63.3) | 27 (60.0) | 40 (45.5) | 0.12 |
Latency duration (days) (n = 607) | ||||
0.5–2 | 22 (21.8) | 48 (24.6) | 58 (18.6) | 0.45 |
3–7 | 38 (37.6) | 69 (35.4) | 126 (40.5) | |
8–14 | 19 (18.8) | 41 (21.0) | 72 (23.2) | |
15–21 | 10 (9.9) | 17 (8.7) | 35 (11.3) | |
22–28 | 8 (7.9) | 9 (4.6) | 11 (3.5) | |
>28 | 4 (4.0) | 11 (5.7) | 9 (2.9) | |
Mode of delivery (n = 596) | ||||
Vaginal | 49 (48.5) | 78 (40.9) | 136 (44.7) | 0.37 |
Cesarean before labor | 32 (31.7) | 61 (31.9) | 82 (27.0) | |
Cesarean during labor | 20 (19.8) | 52 (27.2) | 86 (28.3) | |
GA at birth (weeks) (n = 607) | ||||
24 | 3 (3.0) | 11 (5.6) | 11 (3.5) | 0.31 |
25 | 7 (6.9) | 11 (5.6) | 18 (5.8) | |
26 | 6 (5.9) | 19 (9.7) | 48 (15.4) | |
27 | 11 (10.9) | 21 (10.8) | 47 (15.1) | |
28 | 22 (21.8) | 38 (19.5) | 48 (15.4) | |
29 | 20 (19.8) | 45 (23.1) | 55 (17.7) | |
30 | 21 (20.8) | 35 (18.0) | 58 (18.7) | |
31 | 11 (10.9) | 15 (7.7) | 26 (8.4) | |
SGA ≤ 10th (n = 606)* | 14 (13.9) | 29 (15.0) | 62 (19.9) | 0.21 |
Male (n = 606) | 61 (60.4) | 99 (51.0) | 179 (57.6) | 0.22 |
