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Table 2 Residential migration in the NorCAS* dataset 1985-2003.

From: Residential mobility during pregnancy in the north of England

Residential migration

Frequency

%

95% Confidence Interval

No move

7214

91.10

90.5 - 91.7

Moved

705

8.90

8.3 - 9.5

Of the women who moved:

   

Moved within postcode

29

4.11

2.6 - 5.6

Moved up to 500 m

154

21.84

18.8 - 24.9

Moved 500- < 1000 m

99

14.04

11.5 - 16.6

Moved 1- < 2 km

107

15.18

12.5 - 17.8

Moved 2- < 5 km

129

18.30

15.4 - 21.2

Moved 5- < 10 km

75

10.64

8.4 - 12.9

Moved ≥ 10 km

79

11.21

8.9 - 13.5

Unable to geocode

33

4.68

3.1 - 6.2

Total

705

100

 
  1. *NorCAS = Northern Congenital Abnormality Survey