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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