Skip to main content

Table 1 The effect of continuous EFM versus intermittent auscultation on the incidence of deaths attributable to intrapartum hypoxia

From: A study of an intelligent system to support decision making in the management of labour using the cardiotocograph – the INFANT study protocol

  No. of patients in the EFM group No. of patients in the IA group No. of perinatal deaths Perinatal deaths due to fetal hypoxia
Study EFM IA EFM IA
Haverkamp et al (1976) [45] 242 241 2 (FD 0, ND 2) 1 (FD 0, ND 1) 0 0
Renou et al (1976) [46] 175 175 1 (FD 0, ND1) 1 (FD 1, ND 0) 0 1 (FD)
Kelso et al (1978) [47] 253 251 0 1 (FD 0, ND 1) 0 1 (ND)
Haverkamp et al (1979) [48] 230 229 231 3 (FD 0, ND 3) 0 0 0
Wood et al (1981) [49] 445 482 1 (FD 0, ND 1) 0 0 0
MacDonald et al (1985) [8] 6474 6490 14 (FD 3, ND 11) 14 (FD 2, ND 12) 7 (FD 3, ND 4) 7 (FD 2, ND 5)
Neldam at al (1986) [50] 482 487 0 1 (FD 1, ND 0) 0 1 (FD)
Luthy et al (1987) [51] 122 124 17 (FD 1, ND 16) 18 (FD 1, ND 17) 0 1 (FD)
Vintzileos et al (1993) [52] 746 682 2 (FD 0, ND 2) 9 (FD 2,ND 7) 0 6 (FD 2, ND 4)
Total 9398 9163 40 (4.2/1000) 45 (4.9/1000) 7 (0.7/1000)a 17 (1.8/1000)a
  1. EFM electronic fetal monitoring, IA intermittent auscultation, FD fetal (intrapartum) death, ND neonatal death
  2. aStatistically significant difference; Mantel-Haenszel odds ratio 0.42 (95 % confidence interval 0.17 to 0.98)