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Table 4 Standardised mortality ratio (SMR) by disability score

From: Survival and mortality in cerebral palsy: observations to the sixth decade from a data linkage study of a total population register and National Death Index

Disability score

N

N deaths

N Expected deaths

SMR (exact 95% CI)

SMR (95% CI) of combined DISAB groups

1

123

1

1.432

0.698 (0.35, 3.44)

1.62 (1.24, 2.08)

2

463

5

6.651

0.752 (0.28, 1.67)

3

558

18

10.53

1.709 (1.05, 2.65)

4

488

18

9.590

1.877 (1.15, 2.91)

5

302

15

6.939

2.162 (1.26, 3.49)

6

235

32

5.225

6.124 (4.26, 8.54)

6.43 (4.93, 8.25)

7

176

26

3.790

6.861 (4.58, 9.91)

8

138

31

2.673

11.60 (8.02, 16.3)

11.6 (8.02, 16.3)

9

225

92

3.344

27.51 (22.3, 33.6)

27.5 (22.3, 33.6)

10

242

106

2.574

41.19 (33.9, 49.6)

41.2 (33.9, 49.6)

11

117

74

0.677

109.3 (86.5, 136.5)

110 (88.7, 136)

12

13

9

0.077

116.7 (56.9, 214.2)