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Table 2 Frequency distribution and univariate analyses of medical issues in antenatal and perinatal periods among singleton births by maternal age groups in Taiwan

From: Comparison of medical issues in antenatal and perinatal periods in early youth, adolescent, and young adult mothers in Taiwan: a 10-year nationwide study

  Maternal age (years)
≤15 16–19 20–24
(n = 756) (n = 24,857) (n = 199,630)
n (%) ORa(95% CI) p-value n (%) ORa(95% CI) p-value n (%)
Antenatal medical issue           
  Previous cesarean history 4 (0.3) 0.05 (0.02–0.13) <0.001 897 (2.3) 0.35 (0.33–0.38) <0.001 18,663 (6.3)
  Prolonged pregnancy 31 (2.6) 0.82 (0.58–1.18) 0.289 1,032 (2.7) 0.85 (0.80–0.91) <0.001 9,223 (3.1)
  Preeclampsia 8 (0.7) 1.03 (0.52–2.08) 0.926 262 (0.7) 1.05 (0.92–1.19) 0.474 1,909 (0.7)
  PIH 3 (0.3) 0.76 (0.24–2.35) 0.629 133 (0.3) 1.04 (0.87–1.25) 0.682 978 (0.3)
  Anemia 42 (3.5) 1.16 (0.85–1.58) 0.347 1,480 (3.8) 1.27 (1.20–1.34) <0.001 8,976 (3.0)
  IUGR 11 (0.9) 1.93 (1.06–3.50) 0.031 241 (0.6) 1.31 (1.14–1.50) <0.001 1,412 (0.5)
  Oligohydramnios 5 (0.4) 1.31 (0.54–3.16) 0.547 158 (0.4) 1.28 (1.08–1.52) 0.004 942 (0.3)
  Antepartum hemorrhage, abruptio/previa placenta 12 (1.0) 0.82 (0.46–1.44) 0.483 350 (0.9) 0.74 (0.66–0.82) <0.001 3,620 (1.2)
Perinatal medical issue           
  PROM 47 (3.9) 1.02 (0.77–1.37) 0.873 1,429 (3.7) 0.96 (0.91–1.02) 0.178 11,331 (3.8)
  Failed labor induction 5 (0.4) 1.73 (0.72–4.17) 0.225 113 (0.3) 1.21 (0.99–1.47) 0.065 716 (0.2)
  Dystocia 108 (9.0) 0.96 (0.79–1.17) 0.683 3,426 (8.9) 0.94 (0.91–0.98) 0.001 27,649 (9.4)
  Malpresentation 61 (5.1) 0.83 (0.64–1.08) 0.166 1,801 (4.7) 0.76 (0.72–0.80) <0.001 17,874 (6.1)
  Fetal distress 20 (1.7) 0.80 (0.51–1.24) 0.31 839 (2.2) 1.04 (0.97–1.12) 0.317 6,178 (2.1)
  Preterm delivery 136 (11.3) 3.46 (2.89–4.14) <0.001 1,993 (5.2) 1.47 (1.40–1.54) <0.001 10,537 (3.6)
  Postpartum hemorrhage 7 (0.6) 1.47 (0.70–3.09) 0.313 173 (0.5) 1.12 (0.95–1.31) 0.171 1,182 (0.4)
  1. CI: confidence interval; IUGR: intrauterine growth retardation; OR: odds ratio; PIH: pregnancy-induced hypertenaion; PROM: premature rupture of membrane.
  2. Values expressed as n (%) unless otherwise stated.
  3. aEach medical issue in antenatal and perinatal periods among adolescents aged ≤15 and 16–19 years was estimated as compared with adult mothers aged 20–24 years.