Skip to main content

Table 3 Cox proportional hazard survival analysis for time to self-harm repetition from first presentation occurred during 2010–2013 - Univariate analysis

From: Risk of repeated self-harm and associated factors in children, adolescents and young adults

Univariate
  Males Females
Variables Hazard Ratio (95% CI) p Hazard Ratio (95% CI) p
Age group
 Adolescents 1   1  
 Children 0.73 (0.51–1.08) ns 1.12 (0.91–1.37) ns
 Younger emerging adults 0.98 (0.84–1.15) ns 0.86 (0.73–1.01) 0.06
 Older emerging adults 0.93 (0.79–1.11) ns 0.99 (0.82–1.19) ns
Method
 Drug overdose only 1   1  
 SC only 1.26 (1.09–1.45) 0.002 1.95 (1.70–2.23) <0.001
 Overdose & SC 1.47 (1.18–1.83) 0.001 1.71 (1.39–2.07) <0.001
 Attempted hanging only 0.83 (0.66–1.06) ns 1.37 (1.02–1.84) 0.003
 Attempted drowning only 0.87 (0.61–1.26) ns 1.61 (1.10–2.34) 0.001
 Other 1.19 (1.02–1.41) 0.03 1.61 (1.35–1.93) <0.001
Previous SH presentation
 None 1   1  
 One 2.69 (2.38–3.05) <0.001 2.45 (2.16–2.77) <0.001
 Two 3.67 (3.09–4.35) <0.001 4.94 (4.23–5.78) <0.001
 Three 5.53 (4.43–6.89) <0.001 7.41 (6.12–8.96) <0.001
 Four 6.5 (4.91–8.59) <0.001 8.44 (6.67–10.68) <0.001
 Five 7.9 (5.58–11.31) <0.001 9.7 (7.27–12.93) <0.001
Recommended next care
 General admission 1   1  
 Psychiatric admission 0.99 (0.65–1.53) ns 1.94 (1.25–3.01) 0.003
 Refused to be admitted 0.83 (0.32–2.11) ns 0.57 (0.14–2.29) ns
 Left before admission 1.05 (0.72–1.54) ns 1.73 (1.18–2.54) 0.005
 Not admitted 0.90 (0.68–1.21) ns 1.34 (1.04–1.73) 0.03
 Left without being seen 1.58 (0.98–2.55) 0.06 1.28 (0.67–2.42) ns
Alcohol use
 Yes 1   1  
 No 0.94 (0.84–1.04) ns 0.85 (0.75–0.96) 0.007