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Table 1 A comparison of the demographic distribution of the pre and post intervention samples

From: Intelligent Structured Intermittent Auscultation (ISIA): evaluation of a decision-making framework for fetal heart monitoring of low-risk women

  Pre –intervention medical record review Post–intervention medical record review Pre–intervention medical record review Post–intervention medical record review
Eligible women receiving IA Eligible women receiving IA Eligible women receiving CTG (Continuous or Intermittent) Eligible women receiving CTG (Continuous or Intermittent)
n = 157 n = 158 n = 130 n = 107
Number (%) Number (%) Number (%) Number (%)
Ethnicity NZ European 66 (42) 73 (46.2) 62(47.7) 51 (47.7)
  Maori 30 (19.1) 28 (17.7) 18 (13.8) 14 (13.1)
  Pacific People 12 (7.6) 12 (7.6) 7 (5.4) 6 (5.6)
  Asian 8 (5.1) 9 (5.7) 9 (6.9) 10 (9.4)
  Indian 3 (1.9) 3 (5.7) 1 (0.8) 4 (3.7)
  African 1 (0.6) 1 (0.6) 2 (1.5) 1 (0.9)
  Other 4 (2.5) 2 (1.3) 2 (1.5) 4 (3.7)
  Not stated 33 (21) 30 (19) 29 (22.3) 17 (15.9)
Gravidity Primigravid 53 (33.7) 48 (30.4) 59 (45.5) 45 (42)
  Multigravid 104 (66.3) 110 (69.6) 71 (56.5) 62 (58)
Parity Nulliparous 62 (39.5) 67 (42.4) 77 (59.2 66 (61.7)
  Multiparous 95 (60.5) 92 (58.2) 53 (40.8) 41 (38.3)
Gestation Range 36 wks + 1 day to 41 wks + 5 days 37 wks to 42 wks 36 wks + 3 days to 42 wks + 2 days 36 wks + 3 days to 42 wks + 2 days
  Mean 278.9 days (39 wks +1 day) 279.9(39 wks + 5 days) 279.5 (39 wks + 6 days) 279.5 (39 wks + 6 days)
  SD ± 7.5 days ±7.039 days ± 9.172 ± 9.172
Midwife during labour Self-Employed Midwife 131 (83.4) 146 (92.4) 82 (63.1) 84 (78.5)
  *Hospital Midwife 26(16.6) 12 (7.6) 48 (37.9) 23 (21.5)
  1. *Hospital midwives provide midwifery care during labour for hospital primary women and private obstetricians.