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Table 4 Logistic regression models of risk factors for adverse maternal outcomesa

From: A retrospective analysis of adverse obstetric and perinatal outcomes in adolescent pregnancy: the case of Luapula Province, Zambia

Maternal outcomes Maternal age group Crude Odds ratio (95% CI) Adjusted Odds ratio (95% CI)
Eclampsia 10–15 40.563 (13.094–125.651) 30.503 (7.802–119.247)
(N = 1245) 16–17 0.683 (0.079–5.883) 0.459 (0.049–4.312)
  18–19 1.467 (0.391–5.497) 0.179 (0.019–1.697)
Anaemia 10–15 Non-estimable Non-estimable
(N = 1245) 16–17 3.450 (0.483–24.652) 7.645(0.439–133.114)
  18–19 2.755 (0.458–16.563) 1.252 (0.093–16.765)
Haemorrhage 10–15 3.586 (1.010–12.739) 0.071 (0)
(N = 1717) 16–17 0.463 (0.106–2.025) Non-estimable
  18–19 1.015 (0.446–2.315) 0.022 (0.001–0.437)
Sepsis (N = 1387) 10–15 Non-estimable 0.466 (0)
  16–17 1.739 (0.316–9.561) 0.475(0)
  18–19 1.796 (0.447–7.218) 0.250(0.013–4.729)
Fistulae (N = 744) 10–15 Non-estimable Non-estimable
  16–17 Non-estimable Non-estimable
  18–19 0.371 (0.125–1.106) Non-estimable
PROM (N = 744) 10–15 Non-estimable Non-estimable
  16–17 0.980 (0.108–8.865) 1.804 (0.175–18.588)
  18–19 1.833 (0.454–7.404) 0.712 (0.108–4.685)
CPD (N = 1216) 10–15 5.401 (2.461–11.852) 1.604 (0.721–3.569)
  16–17 2.130 (1.320–3.438) 0.687 (0.416–1.136)
  18–19 1.102 (0.724–1.678) 0.471 (0.301–0.736)
Prolonged labour 10–15 1.488 (0.432–5.126) 2.569 (0.710–9.289)
(N = 1245) 16–17 0.345 (0.119–0.995) 0.397 (0.136–1.155)
  18–19 0.862 (0.479–1.552) 0.928 (0.512–1.682)
Caesarean section 10–15 3.334 (1.930–5.760) 0.082 (0.011–0.616)
(N = 1859) 16–17 1.548 (1.128–2.124) 0.124 (0.044–0.355)
  18–19 1.243 (0.964–1.605) 0.048 (0.015–0.151)
Maternal death 10–15 Non-estimable Non-estimable
(N = 744) 16–17 0.980 (0.205–4.687) 1.242 (0.251–6.142)
  18–19 0.449 (0.095–2.136) 0.207 (0.031–1.386)
  1. aThe covariates included in the logistic regression model were marital status, gravida and ANC