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Table 5 Expected and observed percentage of respondents involved in age 19 multiple risk behaviour (2 or more behaviours) by age 14 and age 16 risk behaviour

From: The correlates and course of multiple health risk behaviour in adolescence

  Expected (%) Age 14 Age 16
Observed (%) AR Observed (%) AR
No risk behaviours 10.1 6.1 −16.68 3.8 −19.97
Regular smoking 10.1 8.7 −0.35 5.8 −2.40
Regular drinking 10.1 15.3 2.34 7.7 −1.63
Tried Cannabis 10.1 22.4 5.32 16.0 4.15
Delinquency 10.1 14.6 6.08 9.5 −0.29
Multiple risk (2+) 10.1 24.4 14.44 24.8 23.04
  1. AR adjusted residuals, indication of magnitude of difference between expected and observed counts. ARs over 2 and below −2 indicate statistically significant differences between expected and observed proportions. Positive ARs indicate larger observed proportions than expected; negative ARs indicate smaller observed proportions than expected