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Table 3 Multivariable* odds ratios showing the association between foetal movement variables and late stillbirth by gestational age group

From: A better understanding of the association between maternal perception of foetal movements and late stillbirth—findings from an individual participant data meta-analysis

  Very preterm (≤ 32 weeks) Preterm (33–36 weeks) Term (37+ weeks)
Cases, N = 114; controls, N = 323 Cases, N = 192; controls, N = 509 Cases, N = 401; controls, N = 897
Combined strength and frequency of foetal movements in the last 2 weeks
 Increased strength 0.04 (0.01, 0.15) 0.13 (0.07, 0.24) 0.29 (0.20, 0.43)
 Increased frequency but not strength 0.06 (0.01, 0.62) 0.79 (0.27, 2.27) 0.58 (0.26, 1.26)
 Decreased frequency 6.98 (1.63, 29.84) 3.48 (1.67, 7.23) 1.95 (1.33, 2.86)
 Unsure of strength or frequency 0.25 (0.04, 1.49) 1.38 (0.44, 4.37) 0.95 (0.50, 1.82)
 The same strength or frequency 1.00 1.00 1.00
Vigorous Foetal movements in the last 2 weeks
 Once 1.78 (0.50, 6.31) 2.56 (1.13, 5.83) 3.78 (2.35, 6.08)
 More than once 0.66 (0.23, 1.88) 0.63 (0.36, 1.11) 0.66 (0.46, 0.93)
 Never 1.00 1.00 1.00
Hiccups in the last 2 weeks
 Yes 0.61 (0.24, 1.58) 0.33 (0.19, 0.56) 0.39 (0.29, 0.55)
 No 1.00 1.00 1.00
 Unsure 0.83 (0.17, 3.91) 0.60 (0.21, 1.72) 0.98 (0.48, 1.98)
  1. *Analyses adjusted for all confounding variables used in the base model in table 2 except gestation (continuous)