showed a trendp = 0.08
In the univariate analysis, asthma was associated with significantly more self-destructive behaviour, OR = 1.84 (1.03–3.21), p = 0.035, but the multivariable model after backward selection only showed a trend of increased risk among adolescents with asthma, OR = 1.76 (0.93–3.29), p = 0.08 ( Table 3 ).