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. 2021 Mar 5;78:369–380. doi: 10.1016/j.trf.2021.02.020

Table 5.

Hierarchical Multiple Linear Regression Investigating the Contributing Factors to the Engagement in Drink Driving with the Easing of COVID Restrictions: Survey 3 (n = 339).

Variables M(SD) β p B sr2
Step 1
Age 39.45(17.22) −0.060 0.271 −0.001 0.004
Step 2
Drink driving (P)a 1.26(0.71) 0.561 0.000*** 0.300 0.236
Drive after 1–2 drinks (P)a 1.91(1.17) 0.079 0.117 0.025 0.005
Drink driving frequency (A)a:
Pubs/clubs 1.19(0.68) −0.030 0.624 −0.016 0.000
Restaurants 1.21(0.65) −0.012 0.847 −0.007 0.000
Friend’s/Family’s place 1.27(0.72) 0.120 0.089 0.063 0.005
Home 1.25(0.83) −0.046 0.433 −0.021 0.001
Knowledge of RBT suspensionb 1.38(0.49) 0.010 0.864 0.007 0.000
Knowledge of RBT suspension liftedb 1.56(0.50) −0.006 0.917 −0.004 0.000
Certainty - general (D)a 2.65(1.37) −0.042 0.450 −0.012 0.001
Certainty - personal (D)a 3.08(1.54) 0.053 0.326 0.013 0.002
Others likely to increase drink driving (A)a 3.91(1.15) 0.037 0.415 0.012 0.001
Increase in drink driving (D)c 1.96(0.44) 0.124 0.005** 0.106 0.015
Drinking frequency (P)a 4.43(1.34) 0.048 0.431 0.014 0.001
Drinking frequency (D)d 3.58(1.43) −0.045 0.457 −0.012 0.001

Note. B = unstandardised B. BCa = bias corrected and accelerated bootstrap. CI = confidence interval. sr2 = semi partial correlation squared.

D = during COVID lockdown. P = prior to COVID lockdown (in the past 12 months). A = after restrictions were eased.

*p < .05. **p < .01. ***p < .001.

a

Measured on a 6-point scale.

b

Yes = 1. No = 2.

c

Decreased = 1. Stayed the same = 2. Increased = 3.

d

Measured on a 5-point scale.