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Table 1 Maternal, fetal and labor characteristics

From: Does prolonged labor affect the birth experience and subsequent wish for cesarean section among first-time mothers? A quantitative and qualitative analysis of a survey from Norway

  Study population
Primiparous at term, induced or spont. start of labor (n = 459)
Medical Birth Registry, Norway, 2014
a All deliveries n = 59,065
b All planned vaginal deliveries (n = 54,946)
c Primiparous spont. start (n = 14,239)
d Primiparous spont. start, vag delivery (n = 12,954)
Maternal characteristics
 Maternal age mean, yrs 32 29 a
 Cohabiting or married
    Missing
439 (96%)
9 (2%)
55,041 (93%) a
 BMI median
   Missing
22.0
43 (9.4%)
24.2 a
Fetal characteristics
 Gestational age, days 283 (SD = 9) 275 (SD = 14) a
 Mean birth weight, g 3438 3489 a
 5 min Apgar score < 7
 Missing
3 (0.7%)
5 (1.1%)
1059 (1.8%) a
Onset of labor
 Spontaneous 346 (75%) 42,848 (78%) b
 Induced 113 (25%) 12,098 (22%) b
Mode of delivery
 Normal vaginal 296 (64%) 10,093 (71%) c
 Operative vaginal 114 (25%) 2861 (20%) c
 Cesarean section 49 (11%) 1285 (9%) c
Labor characteristics
 Anal sphincter tears 7 (1.5%) 406 (3.1%) d
 Missing 5 (1.1%)  
 Episiotomy 155 (34%) 4469 (34%) d
 Bleeding ≥500 ml 109 (24%) 15,802 (27%) a