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Table 3 Perinatal mortality (22+0 weeks – 6 days) risk per region after adjustment for risk factors.

From: Regional perinatal mortality differences in the Netherlands; care is the question

 

Unadjusted

Adjusted Model I#

Adjusted Model II†

 

OR

95% CI

OR

95% CI

OR

95% CI

Region

      

   North

1.11

1.03–1.19

1.20

1.12–1.28

1.11

1.03–1.20

   East

1.01

0.96–1.07

1.08

1.02–1.14

1.04

0.98–1.10

   West*

1.00

reference

1.00

reference

1.00

reference

   South

0.95

0.90–1.00

1.01

0.95–1.06

0.97

0.91–1.03

Maternal age

      

   < 20 years

1.68

1.49–1.91

1.38

1.22–1.57

1.36

1.20–1.54

   20–34 years

1.00

reference

1.00

reference

1.00

reference

   ≥ 35 years

1.23

1.17–1.30

1.28

1.21–1.35

1.29

1.23–1.36

Parity

      

   Parity 0

1.40

1.33–1.47

1.42

1.35–1.49

1.42

1.35–1.49

   Parity 1

1.00

reference

1.00

reference

1.00

reference

   Parity 2+

1.44

1.36–1.53

1.32

1.24–1.41

1.31

1.23–1.40

Ethnicity

      

   Western

1.00

reference

1.00

reference

1.00

reference

   Non-Western

1.42

1.35–1.50

1.43

1.36–1.50

1.37

1.29–1.45

Urbanization

      

   Very urban

1.10

1.05–1.16

  

0.92

0.86–0.98

   Middle

1.00

reference

  

1.00

reference

   Very rural

1.01

0.96–1.07

  

1.03

0.98–1.10

SES

      

   Low

1.23

1.18–1.30

  

1.15

1.09–1.21

   Middle

1.00

reference

  

1.00

reference

   High

0.90

0.85–0.95

  

0.91

0.86–0.96

  1. * Region west was set as reference area as the perinatal mortality rate of this region was equal to the overall rate.
  2. # Model I was adjusted for maternal age, parity and ethnicity.
  3. † Model II was an extension of model I with additional adjustment for degree of urbanization and SES.
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BMC Public Health

ISSN: 1471-2458

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