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Table 6 Characteristics of all un-booked women, and of the subset of those referred from another health facility, who were admitted to UBTH maternity ward between Dec 2017 and Jul 2018

From: Critical comparative analysis of data sources toward understanding referral during pregnancy and childbirth: three perspectives from Nigeria

  All un-booked women in the sample (n = 253) Referred from another health facility (n = 195)
% 95%CI % 95%CI
Reproductive age category
  < 20 years 2.0 0.8–4.7 2.1 0.8–5.4
 20 to 34 years 70.8 64.8–76.1 69.2 62.4–75.3
  > 35 years 27.3 22.1–33.1 28.7 22.8–35.5
Marital status
 Married 94.9 91.3–97.0 95.4 91.3–97.6
 Unmarried 5.1 3.0–8.7 4.6 2.4–8.7
Residence
 Benin City 91.3 87.1–94.2 91.3 86.4–94.5
 Outside of Benin City 7.1 4.5–11.0 7.2 4.3–11.8
 Unknown/missing 1.6 0.6–4.2 1.5 0.5–4.7
Parity
 Nulliparous (0) 32.0 26.5–38.0 31.8 25.6–38.7
 Multiparous (1–4) 62.9 56.7–68.6 62.1 55.0–68.6
 Grand multiparous (5+) 5.1 3.0–8.7 6.2 3.5–10.6
Number of gestations
 Singleton 88.5 84.0–91.9 85.6 80.0–89.9
 Multiple (Twins/Triplets) 11.5 8.1–16.0 14.4 10.1–20.1
Timing and mode of delivery
 Delivered before arrival 6.3 3.9–10.1 5.1 2.8–9.3
 Vaginal delivery 42.7 36.7–48.9 42.1 35.3–49.1
 Caesarean delivery 49.0 42.9–55.2 50.8 43.7–57.8
 Othera 0.8 0.2–3.1 1.0 0.3–4.0
 Unknown/missing 1.2 0.4–3.6 1.0 0.3–4.0
Gestational age
 Extremely preterm (< 28 weeks) 10.3 7.1–14.7 9.7 6.3–14.8
 Very preterm (28–32 weeks) 21.3 16.7–26.9 26.7 20.9–33.4
 Moderate to late preterm (32–37 weeks) 19.0 14.6–24.3 20.5 15.4–26.8
 Term (37+ weeks) 41.9 35.9–48.1 36.4 29.9–43.4
 Postpartum arrival 3.2 1.6–6.2 2.6 1.1–6.0
 Unknown/missing 4.4 2.4–7.7 4.1 2.1–8.0
  1. aIncludes maternal deaths prior to delivery and multiples delivery where mode of delivery at UBTH differed between twins