Skip to main content

Table 4 Hazard ratios and 95 % CI of prescription stimulant medication in Aboriginal children and adolescents

From: Use of prescription stimulant for Attention Deficit Hyperactivity Disorder in Aboriginal children and adolescents: a linked data cohort study

Parameter Univariate Analysis Multivariate Analysisa
HR (95 % CI) P-Value HR (95 % CI) P-Value
Mothers’ age group in years at birth <20 0.70(0.47–10.4) 0.08 0.69(0.45–1.07) 0.10
20–24 1.10(0.80–1.50) 0.56 1.20(0.85–1.69) 0.29
25–29 1.0   1.0  
30–34 1.06(0.72–1.57) 0.78 1.30(0.86–1.96) 0.22
35–39 0.98(0.54–1.77) 0.94 1.25(0.68–2.28) 0.48
≥40 0.46(0.06–3.33) 0.44 0.60(0.08–4.33) 0.61
Sex Female 1.0   1.0  
Male 4.51(3.27–6.23) <0.001 4.08(2.92–5.69) <0.001
Geographical remoteness Metropolitan 1.0   1.0  
Rural 0.83(0.61–1.13) 0.23 0.82(0.60–1.12) 0.20
Remote 0.39(0.27–0.58) <0.001 0.38(0.26–0.56) <0.001
Socioeconomic disadvantage Least disadvantaged 1.0   1.0  
Less disadvantaged 1.05(0.68–1.63) 0.82 1.15(0.74–1.78) 0.53
Little disadvantaged 1.25(0.78–1.99) 0.35 1.29(0.81–2.05) 0.29
More disadvantaged 1.10(0.65–1.88) 0.71 1.26(0.74–2.16) 0.39
Most disadvantaged 1.14(0.76–1.72) 0.53 1.40(0.92–2.12) 0.12
  1. aAll parameters were included in the regression model so as to adjust each result for potential confounding by all other covariates