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Table 1 Demographics and obstetrics characteristics of multiparous women (n = 7109)

From: The impact of stage of labor on adverse maternal and neonatal outcomes in multiparous women: a retrospective cohort study

  Median/n IQR/%
Duration of stage of labor
 First stage (hour) a 6.2 3.6–10.0
   < 6 h 3398 47.8
  6–11.9 h 2512 35.3
  12–17.9 h 820 11.5
  18–23.9 h 228 3.2
   ≥ 24 h 151 2.1
 Second stage (hour) a 0.3 0.2–0.7
   < 1 h 5791 81.5
  1–1.9 h 776 10.9
  2–2.9 h 278 3.9
  3–3.9 h 129 1.8
   ≥ 4 h 135 1.9
 Total stage (hour) a 6.9 4.1–10.7
   < 12 h 5717 80.4
  12–23.9 h 1208 17.0
   ≥ 24 h 184 2.6
Gestational age (weeks) a 39.6 39.0–40.3
Maternal age (years) a 33.0 30.0–36.0
Maternal Height (cm) a 162.6 160.0–167.6
Gestational weight gain (kg) a 14.0 10.0–17.0
Maternal BMI (kg/m2) a 29.4 26.6–32.6
Graviditya 3.0 2.0–4.0
Paritya 2.0 2.0–3.0
Baby weight (g) a 3459 3175–3750
Baby height (cm) a 50.8 48.3–52.1
Ethnicity
 Non-Hispanic White 4671 65.7
 Non-Hispanic Black 558 7.9
 Hispanic 273 3.8
 Asian or Pacific Islanders 737 10.4
 Other or Unknown 870 12.2
Epidural analgesia 5423 76.3
Induction 1647 23.2
Oxytocin 1975 27.8
  1. Data was presented as n (%) or amedian (interquartile range, non-normal distribution)