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Table 4 Mediation effect (simultaneous model) of peak drinking quantity and general risk-taking behaviour on the association of impulsivity to injury

From: High peak drinking levels mediate the relation between impulsive personality and injury risk in emerging adults

Predictor

Mediator

Indirect effect

Direct effect

Path |a|

Path |b|

Path |ab|

Path |ac|

(Effect of IV on M)

(Unique effect of M on DV)

(Indirect effect; IV to DV via M)

(Effect of IV on DV)

[β (95% CI)]

[β (95% CI)]

OR

[β (95% CI)]

OR

[β (95% CI)]

OR

Impulsivity

Peak drinking quantity [past 30 days]

0.306 (0.196; 0.416)**

0.052 (0.001; 0.103)*

1.053

0.016 (0.0001; 0.0353)*

1.016

0.088 (0.009; 0.167)*

1.092

Risky behaviour [past year]

0.712 (0.551; 0.873)**

0.016 (− 0.018; 0.052)

1.017

0.012 (− 0.012; 0.036)

1.012

  1. IV: independent variable; M: mediating variable; DV: dependent variable
  2. Dependent variable: Injury (Yes/No)
  3. Adjusted for age, biological sex, and study site
  4. *p < 0.05; **p < 0.001
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Injury Epidemiology

ISSN: 2197-1714