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Table 1 Sex differences by risk of suicide attempts associated with time of day

From: The association of monthly, diurnal and circadian variations with suicide attempts by young people

Parameter

Level

Relative risk

Lower 95%CI

Upper 95%CI

Hour

0:00 = Ref

1

1:00

0.89

0.64

1.25

2:00

0.71

0.50

1.02

3:00

0.43

0.29

0.66

4:00

0.14

0.08

0.28

5:00

0.17

0.09

0.31

6:00

0.11

0.05

0.22

7:00

0.22

0.13

0.38

8:00

0.62

0.43

0.90

9:00

0.58

0.40

0.85

10:00

0.75

0.53

1.07

11:00

0.86

0.61

1.20

12:00

1.08

0.78

1.49

13:00

1.28

0.94

1.74

14:00

1.39

1.03

1.89

15:00

1.43

1.06

1.94

16:00

1.29

0.95

1.75

17:00

1.51

1.12

2.04

18:00

1.78

1.33

2.37

19:00

1.53

1.13

2.05

20:00

1.97

1.49

2.62

21:00

1.91

1.43

2.54

22:00

1.64

1.23

2.20

23:00

1.58

1.18

2.12

Sex

Female = ref

1

Male

0.22

0.19

0.25