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Table 1 Age, sex and ethnic group-specific self-harm incidence (per 1000 person-years) and rate ratios for people of Chinese origin versus White people

From: Self-harm amongst people of Chinese origin versus White people living in England: a cohort study

 

Chinese origin

White

Chinese versus White

Sex/age group

Self-harm (n = 45)

Person- years

Rate/1000

Self-harm (n = 7111)

Person- years

Rate/ 1000

Rate ratio

(95% CI)

Males and females combined

        

 16-34

37

58198

0.6

4408

1158943

3.8

0.17

(0.12, 0.23)

 35-64

8

20496

0.4

2703

1046052

2.6

0.15

(0.08, 0.30)

 16-64

45

78693

0.6

7111

2204995

3.2

0.18

(0.13, 0.24)

Males

        

 16-34

10

28969

0.3

1832

583614

3.1

0.11

(0.06, 0.20)

 35-64

0

10218

0.0

1298

531299

2.4

0.00

-

 16-64

10

39187

0.3

3130

1114913

2.8

0.09a

(0.05, 0.17)

Females

        

 16-34

27

29229

0.9

2576

575330

4.5

0.21

(0.14, 0.30)

 35-64

8

10278

0.8

1405

514752

2.7

0.29

(0.14, 0.57)

 16-64

35

39507

0.9

3981

1090082

3.7

0.24a

(0.17, 0.34)

  1. aP value for sex interaction = 0.006.