From: Nomogram for perinatal prediction of intrapartum fever: a retrospective case–control study
Variable | Training cohort (n = 487) | Validation cohort (n = 209) | P |
---|---|---|---|
Age [M (IQR)] | 28 (4) | 29 (5) | 0.081 |
BMI, kg/m2 [M (IQR)] | 26.7 (3.9) | 26.4 (4.7) | 0.565 |
Gestational age, d [M (IQR)] | 275 (11) | 274 (10) | 0.402 |
Accompany disease, n (%) | |||
GDM | 62 (12.7%) | 2 4(11.5%) | 0.647 |
Abnormal thyroid function | 8 (1.6%) | 3 (1.4%) | 0.841 |
Hypertension during pregnancy | 20 (4.2%) | 10 (4.8%) | 0.729 |
Parity, n (%) | 0.708 | ||
Nulliparity | 294 (60.4%) | 123 (58.9%) | |
Multiparous | 193 (39.6%) | 86 (41.1%) | |
Body temperature on admission, ℃ [M (IQR)] | 36.5 (0.2) | 36.5 (0.2) | 0.232 |
WBC counts on admission, ×109 [M (IQR)] | 8.3 (2.7) | 8.7 (3.0) | 0.168 |
HB on admission, g/L [M (IQR)] | 12.1 (2) | 12 (2) | 0.508 |
Pre-labour ROM, n (%) | 0.324 | ||
Yes | 72 (14.8%) | 25 (12%) | |
No | 415 (85.2%) | 184 (88%) | |
Duration from rupture of membranes to delivery, min [M (IQR)] | 188 (434) | 234 (480) | 0.836 |
Method of membrane rupture, n (%) | 0.407 | ||
Spontaneous | 224 (46.0%) | 89 (42.6%) | |
Surgical | 263 (54%) | 120 (57.4%) | |
Oxytocin usage, n (%) | 0.325 | ||
Yes | 276 (56.7%) | 110 (52.6%) | |
No | 211 (43.3%) | 99 (47.4%) | |
Foetal weight, g [M (IQR)] | 3340 (490) | 3350 (580) | 0.749 |
Amniotic fluid pollution III, n (%) | 0.686 | ||
Yes | 20 (4.1%) | 11 (5.3%) | |
No | 467 (95.9%) | 198 (94.7%) | |
Duration of the first stage of labour, min [M (IQR)] | 470 (450) | 420 (438) | 0.203 |
Duration of the second stage of labour, min [M (IQR)] | 31 (46) | 28 (48) | 0.120 |
Number of vaginal examinations [M (IQR)] | 2 (1) | 2 (2) | 0.803 |
Epidural labour analgesia, n (%) | 0.933 | ||
Yes | 139 (28.5%) | 59 (28.2%) | |
No | 348(71.5%) | 150 (71.8%) | |
Analgesia time, min [M (IQR)] | 0(160) | 0 (133) | 0.834 |
Apgar score at 5 minutes [M (IQR)] | 9(10) | 9 (10) | 0.956 |