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Table 3 Rates of adverse obstetric and perinatal outcome by maternal age group

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

  Maternal age group
10–15 16–17 18–19 20–24 p valuea
Maternal Outcomes
  n = 42 n = 191 n = 358 n = 654  
Eclampsia (N = 1245) 10(23.8%) 1(0.5%) 4(1.1%) 5(0.8%) < 0.001
Anaemia (N = 1245) 0(0.0%) 2(1.0%) 3(0.8%) 2(0.3%) 0.513
  n = 50 n = 245 n = 507 n = 915  
Haemorrhage (N = 1717) 3(6.0%) 2(0.8%) 9(1.8%) 16(1.8%) 0.089
  n = 49 n = 209 n = 405 n = 724  
Sepsis (N = 1387) 0(0.0%) 2(1.0%) 4(1.0%) 4(0.6%) 0.751
  n = 22 n = 102 n = 220 n = 400  
Fistulae (N = 744) 0(0.0%) 0(0.0%) 4(1.8%) 19(4.8%) 0.032
PROMb (N = 744) 0(0.0%) 1(1.0%) 4(1.8%) 4(1.0%) 0.767
  n = 30 n = 156 n = 369 n = 661  
CPDc (N = 1216) 11(36.7%) 29(18.6%) 39(10.6%) 64(9.7%) < 0.001
  n = 40 n = 217 n = 446 n = 542  
Prolonged labour (N = 1245) 3(7.1%) 8(4.2%) 19(5.3%) 25(3.8%) 0.576
  n = 57 n = 263 n = 554 n = 985  
Caesarean section (N = 1859) 25(43.9%) 70(26.6%) 125(22.6%) 187(19.0%) < 0.001
  n = 22 n = 102 n = 220 n = 400  
Maternal death (N = 744) 0(0.0%) 2(2.0%) 2(0.9%) 8(2.0%) 0.682
Perinatal outcomes
  n = 70 n = 332 n = 706 n = 1258  
Low birth weight (N = 2366) 12(17.1%) 52(15.7%) 103(14.6%) 140(11.1%) 0.035
  n = 37 n = 174 n = 416 n = 731  
Pre-term delivery (N = 1358) 2(5.4%) 9(5.2%) 15(3.6%) 18(2.5%) 0.239
  n = 30 n = 156 n = 369 n = 661  
Asphyxia (N = 1216) 0(0.0%) 2(1.3%) 7(1.9%) 4(0.6%) 0.248
  n = 57 n = 263 n = 554 n = 985  
Low Apgar score (N = 1859) 9(15.8%) 38(14.4%) 61(11.0%) 92(9.3%) 0.062
Neonatal death (N = 1859) 4(7.0%) 7(2.7%) 38(6.9%) 39(4.0%) 0.018
  1. achi-square test was used to identify between-group differences. Fischer’s exact test was used when the number of outcomes was small
  2. bPROM = Premature Rapture of membranes
  3. cCPD = Cephalopelvic disproportion