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Table 4 Logistic regression analysis

From: Use of alcohol and drugs by employees in selected business areas in Norway: a study using oral fluid testing and questionnaires

  Univariate analysis Multivariate analysis
  OR 95 % CI p OR 95 % CI p
Detection of illicit drugs in oral fluid       
 Non-restaurant/bar employees (referent)       
 Restaurant/bar 13.70 5.57–33.69 <0.001 5.00 1.82–13.72 0.002
 Females 0.19 0.06–0.57 0.003 0.19 0.06–0.59 0.004
 Age < 30 years (referent)       
 Age 30–39 years 0.51 0.20–1.28 0.151 0.77 0.28–2.15 0.622
 Age 40+ years 0.03 0.00–0.21 0.001 0.05 0.01–0.43 0.006
Detection of medicinal drugs in oral fluid       
 Healthcare employees (referent)       
 Finance 0.23 0.09–0.59 0.002 0.24 0.09–0.63 0.003
 Manufacturing 0.34 0.12–0.95 0.040 0.35 0.11–1.05 0.062
 Transportation/storage 0.76 0.34–1.73 0.516 0.92 0.35–2.41 0.872
 Restaurant/bar 0.48 0.15–1.57 0.224 0.77 0.20–2.93 0.700
 Other lines of business 0.39 0.15–1.00 0.050 0.39 0.15–1.00 0.050
 Females 1.66 0.98–2.81 0.058 1.27 0.67–2.42 0.462
 Age < 30 years (referent)       
 Age 30–39 years 0.71 0.28–1.79 0.464 0.79 0.29–2.11 0.632
 Age 40–49 years 1.32 0.58–2.98 0.512 1.50 0.61–3.68 0.375
 Age 50–59 years 1.83 0.83–4.05 0.134 2.18 0.91–5.22 0.082
 Age 60+ years 2.37 0.95–5.94 0.066 2.83 1.05–7.63 0.040
Reported reduced efficiency or hangover at work last 12 months due to drinking       
 Healthcare employees (referent)       
 Finance 4.82 3.66–6.35 <0.001 5.10 3.79–6.87 <0.001
 Manufacturing 0.37 0.20–0.68 0.001 0.31 0.16–0.58 <0.001
 Transportation/storage 0.74 0.44–1.25 0.265 0.45 0.26–0.79 0.006
 Restaurant/bar 14.18 9.35–21.52 <0.001 5.75 3.66–9.05 <0.001
 Other lines of business 4.85 3.67–6.42 <0.001 4.96 3.69–6.67 <0.001
 Females 0.75 0.62–0.90 0.003 0.63 0.50–0.79 <0.001
 Age < 30 years (referent)       
 Age 30–39 years 0.47 0.36–0.61 <0.001 0.41 0.30–0.56 <0.001
 Age 40–49 years 0.30 0.23–0.40 <0.001 0.31 0.22–0.43 <0.001
 Age 50–59 years 0.20 0.15–0.27 <0.001 0.18 0.13–0.26 <0.001
 Age 60+ years 0.16 0.10–0.26 <0.001 0.13 0.08–0.22 <0.001
Reported sickness absence last 12 months due to drinking       
 Healthcare employees (referent)       
 Finance 11.93 5.55–25.60 <0.001 11.04 5.06–24.07 <0.001
 Manufacturing 0.92 0.19–4.36 0.916 0.80 0.17–3.86 0.778
 Transportation/storage 4.22 1.51–11.79 0.006 2.73 0.94–7.97 0.066
 Restaurant/bar 29.22 12.93–66.02 <0.001 13.76 5.78–32.77 <0.001
 Other lines of business 10.92 5.04–23.67 <0.001 9.92 4.54–21.69 <0.001
 Females 0.52 0.36–0.75 0.001 0.59 0.39–0.88 0.010
 Age < 30 years (referent)       
 Age 30–39 years 0.68 0.44–1.05 0.080 0.75 0.45–1.24 0.259
 Age 40–49 years 0.23 0.13–0.42 <0.001 0.31 0.16–0.59 <0.001
 Age 50–59 years 0.22 0.12–0.41 <0.001 0.28 0.14–0.55 <0.001
 Age 60+ years 0.13 0.04–0.42 0.001 0.14 0.04–0.48 0.002