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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Addiction. 2014 Oct 16;110(1):144–151. doi: 10.1111/add.12717

Figure 2.

Figure 2

Cumulative survival curves representing the time from gambling initiation until the first symptom of disordered gambling as a function of sex and early age of gambling initiation (among individuals whose time from gambling initiation to the first disordered gambling symptom was less than 18 years). There was not a significant interaction between gender and early gambling initiation in predicting the onset of the first disordered gambling symptom (χ2 = 1.72, df = 1, p = 0.19), and the hazards significantly differed for men and women with both an earlier (HR = 1.57, 95% CI = 1.16 – 2.13) and later (HR = 2.45, 95% CI = 1.89 – 3.17) age of gambling initiation. Age was included as a covariate in the two Cox proportional hazards models used to derive these survival curves.