Table 2

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

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


Univariate logistic regression analyses with 95% CI, at baseline is the reference category

§ Multivariate logistic regression analyses with 95% CI, adjusting for the covariates (parity, maternal age, BMI, smoking habits, maternal origin)

Denominators vary due to missing values. Bold numbers indicate significant values after Bonferroni correction for multiple comparisons

Saastad et al. BMC Research Notes 2010 3:2   doi:10.1186/1756-0500-3-2

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