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Table 2 DFM population: Effects of intervention on maternal behavior and stillbirth rates, stratified by subgroups

From: Implementation of uniform information on fetal movement in a Norwegian population reduced delayed reporting of decreased fetal movement and stillbirths in primiparous women - a clinical quality improvement

  Overall
N = 4 253
Stratified by subgroups
n (%)
  Pre-intervention
n = 1 215
n (%)
Post-intervention
n = 3 038
n (%)
Primiparous
n = 1 973
(52.0)
P-value ≥ 35 years
n = 724
(17.2)
P-value Overweight
n = 1 400
(36.8)
P-value Smokers
n = 363
(8.9)
P-value Non-Western
n = 583
(13.7)
P-value
Consultation    Adj OR (95% CI)§
By own initiative 363 (32.1) 656 (30.8) 1.22
(0.95-1.57)
0.117 1.43
(0.99-2.08)
0.652 1.10
(0.81-1.50)
0.524 0.87
(0.47-1.62)
0.657 0.88
(0.54-1.46)
0.631
At the delivery unit 661 (54.9) 1, 716 (57.4) 1.35
(1.09-1.67)
0.007 1.01
(0.76-1.34)
0.057 1.24
(0.96-1.60)
0.106 0.82
(0.47-1.44)
0.493 1.06
(0.68-1.67)
0.786
During night
(6 pm-8 am)
317 (27.7) 846 (29.9) 1.39
(1.09-1.77)
0.007 1.31
(0.83-2.07)
0.258 1.41
(1.05-1.89)
0.023 1.78
(0.99-3.21)
0.055 1.08
(0.65-1.80)
0.775
In weekends 258 (21.2) 607 (20.0) 1.04
(0.80-1.35)
0.758 0.84
(0.65-1.69)
0.855 1.28
(0.94-1.76)
0.121 0.51
(0.27-0.96)
0.037 0.88
(0.50-1.52)
0.634
DFM ≥ 48 hrs 415 (53.6) 897 (48.9) 0.61
(0.47-0.81)
<0.001 0.82
(0.51-1.32)
0.414 1.12
(0.81-1.54)
0.507 1.47
(0.74-2.91)
0.274 0.54
(0.29-0.99)
0.045
Absent FM ≥ 25 hrs 99 (23.9) 201 (18.0) 0.72
(0.47-1.09)
0.117 1.00
(0.43-2.32)
0.996 0.90
(0.55-1.47)
0.668 0.60
(0.22-1.61)
0.309 0.64
(0.29-1.43)
0.274
Fetal deaths 50(4.2) 73 (2.4) 0.36
(0.19-0.69)
0.002 0.92
(0.35-2.44)
0.902 0.60
(0.30-1.20)
0.151 1.48
(0.40-5.53)
0.559 0.99
(0.25-4.02)
0.993
  1. Univariate logistic regression analyses with 95% CI, at baseline is the reference category
  2. § Multivariate logistic regression analyses with 95% CI, adjusting for the covariates (parity, maternal age, BMI, smoking habits, maternal origin)
  3. Denominators vary due to missing values. Bold numbers indicate significant values after Bonferroni correction for multiple comparisons