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

 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

 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

 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

 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

 Yes

1

1

 No

0.94 (0.84–1.04)

ns

0.85 (0.75–0.96)

0.007