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Table 1 Characteristics of Study Population

From: The association of maternal age with adverse neonatal outcomes in Lusaka, Zambia: a prospective cohort study

Characteristic Total (N = 11,501) Maternal Age
   10–19 (n = 1,788) 20–24 (n = 3,980) 25–34 (n = 4,651) 35+ (n = 1,082)
  N ( column % ) N ( column % ) N ( column % ) N ( column % ) N ( column % )
Highest Education
  No formal education 434 (3.8) 16 (0.9) 94 (2.4) 229 (4.9) 95 (8.8)
  Some school/Primary school 4,380 (38.1) 635 (35.5) 1,195 (30.0) 1,939 (41.7) 611 (56.5)
  Secondary school 6,351 (55.2) 1,129 (63.1) 2,590 (65.1) 2,281 (41.0) 351 (32.4)
  College 327 (2.8) 5 (0.3) 100 (2.5) 197 (4.2) 25 (2.3)
  Parity (mean, SD) 1.6 (1.5) 0.1 (0.4) 0.8 (0.8) 2.2 (1.2) 3.9 (1.4)
ANC visits (mean, SD) 3.1 (1.0) 3.1 (1.0) 3.1 (1.0) 3.1 (1.0) 3.0 (1.0)
Mode of Birth
  Vaginal 10,879 (94.6) 1,661 (92.9) 3,751 (94.3) 4,432 (95.3) 1,035 (95.7)
  C-Section 200 (1.7) 27 (1.5) 67 (1.7) 81 (1.7) 25 (2.3)
Location of Birth
  Health facility 10,644 (92.6) 1,643 (91.9) 3,697 (92.9) 4,304(92.5) 1,000 (92.4)
  Home 489 (4.3) 51 (2.9) 146 (3.7) 234 (5.0) 58 (5.4)
  Other 17 (0.2) 3 (0.2) 4 (0.1) 7 (0.2) 3 (0.3)
Birth Attendant
  Physician (Obstetrician/ Non-specialist) 263 (2.4) 28 (1.7) 92 (2.4) 106 (2.3) 37 (3.5)
  Nurse/Nurse-midwife 10,408 (93.1) 1,618 (95.3) 3,604 (93.7) 4,194 (92.3) 962 (90.6)
  Traditional birth attendant 14 (0.1) 2 (0.1) 1 (0.03) 9 (0.2) 2 (0.2)
  Family or neighbor 457 (4.1) 47 (2.8) 136 (3.5) 219 (4.8) 54 (5.1)
  Self-birth 28 (0.3) 2 (0.1) 8 (0.2) 11 (0.2) 7 (0.7)
  1. SD Standard Deviation
  2. aNumbers may not sum to column totals due to missing data