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Table 3 Multivariable logistic regression models for associations between fetal movement patterns and fetal health

From: Wavelet principal component analysis of fetal movement counting data preceding hospital examinations due to decreased fetal movement: a prospective cohort study

CONSULTATIONS DUE TO DECREASED FETAL MOVEMENT,(n =148) OUTCOME: pathology identified at DFM consultationa
  Simple regression    Multivariable regression   
Continuous explanatory variables Estimate p Estimate SE p 95% CI
Wavelet PC scores       
PC1: general level 0.096 0.163 0.053 0.038 0.208 -0.02 to 0.13
PC2: spike around day of consultation -0.159 0.164 -0.166 0.128 0.237 -0.41 to 0.08
PC3: inverted U-shape 0.251 0.149 0.294 0.179 0.143 -0.06 to 0.65
Gestational age on day of consultation (days) 0.015 0.106 0.019 0.010 0.093 -0.00 to 0.04
CONSULTATIONS DUE TO DECREASED FETAL MOVEMENT WITHIN 21 DAYS BEFORE BIRTH, (n=76) OUTCOME: Fetal compromise at DFM consultation b
Wavelet PC scores       
PC1_21: general level 0.066 0.104 0.062 0.043 0.144 -0.02 to 0.15
PC2_21: spike around day of consultation - 0.070 0.566 -0.103 0.138 0.455 -0.37 to 0.17
PC3_21: inverted U-shape 0.245 0.177 0.308 0.194 0.113 -0.07 to 0.69
Gestational age on day of consultation (days) - 0.017 0.260 -0.014 0.016 0.361 -0.05 to 0.02
  1. SE, standard error; CI, confidence interval, PC, principal component; DFM, decreased fetal movement.
  2. aOutcome (binary dependent) variable = pathology identified at consultation (22/148 events). Analysis included fitting a mixed-effects model to account for multiple consultations within pregnancies. Women in the sample had one (n=127), two (n=9), or three (n=1) DFM-related consultations. Mean gestational age at time of consultation was 250 days (range, 184-292 days; standard deviation, 31 days).
  3. bOutcome (binary dependent) variable = fetal compromise at time of consultation (27/76 events). No women attended more than one consultation within 21 days before birth. Mean gestational age at time of consultation was 271 days (range, 213-292; standard deviation, 16 days).