Long-term mental health outcomes after unintentional burns sustained during childhood: a retrospective cohort study

Table 3 Adjusted incidence rate ratios (IRR) and 95% confidence intervals (CI) for post-injury admissions for mental health conditions comparing those with burn injury with non-injured, Western Australia, 1980–2012

Characteristics	Adjusted IRR^d	95% CI
Burn	2.55	2.07–3.15
Female	1.79	1.44–2.22
Indigenous (yes vs no)	2.77	2.07–3.70
Age at index event
0–4 years (ref)	1.00	–
5–9 years	1.65	1.22–2.24
10–14 years	4.31	3.19–5.82
15–17 years	4.39	3.16–6.09
Social disadvantage^a (increasing advantage)	1.10	1.01–1.19
Remoteness^b (increasingly remote)	1.06	0.97–1.15
Year of index admission (increasing)	0.93	0.92–0.95
Previous mental health admission	56.30	22.00–144.05^d
Prior self-harm admission	5.83	2.14–15.89^d
Prior drug/alcohol admission	2.36	0.94–5.93^d
Pre-existing comorbidities^c	2.26	1.28–5.93

^aSocio-Economic Index for Areas (SEIFA) socio-economic disadvantage
^bAccessibility Remoteness Index of Australia, revised version (ARIA+) remoteness classification
^cComorbidity derived using Charlson Comorbidity Index (CCI) 5-year look-back period
^dWide 95% CI related to small numbers with prior admissions

ISSN: 2321-3876