Skip to main content

Table 4 Multivariable Firth logistic regression analysis predicting adjustment of typical drink quantity based on survey format

From: Inaccuracies in survey reporting of alcohol consumption

VariableAustraliaUS
 OR95% CIP-valueOverall p-valueOR95% CIP-valueOverall p-value
Age0.980.86–1.130.88 1.050.95–1.150.330.33
Gender (Ref: Male)1   1   
 Female0.900.22–3.700.82 0.770.39–1.530.460.46
Number of drinks on a typical day (Ref: 1 or 2)1  0.461  < 0.01
 3 or 40.170.01–3.770.26 3.110.16–60.940.46 
 5 or 60.180.01–5.180.32 13.510.71–256.610.08 
 7 to 90.100–3.230.19 5.980.30–118.380.24 
 10+0.910.01–72.630.72 8.030.32–202.610.21 
Frequency of drinking in the past 3 months (Ref: Monthly or less)1  0.711  < 0.01
 2 to 4 times a month2.200.27–17.970.46 4.081.81–9.20< 0.01 
 2 or 3 times a week0.860.06–12.480.91 1.540.56–4.240.40 
 4+ times a week0.520.01–18.010.72 3.060.71–13.140.13 
Frequency of drinking 6+ drinks on one occasion (Ref; Less than monthly)1  0.291  0.28
 Monthly0.290.04–2.270.24 0.910.40–2.070.83 
 Weekly1.270.07–24.540.87 2.270.69–7.440.18 
 Daily or almost daily0.250–30.140.57 0.710.02–28.700.86 
In the past 12 months planned to get drunk before drinking (Ref: Never)    1  0.02
 Once    0.100.01–0.570.01 
 Twice    0.540.13–2.310.41 
 3–5 times    0.190.06–0.620.01 
 5–11 times    0.140.04–0.49< 0.01 
 12+ times    0.210.06–0.710.01