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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