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Table 3 Variables independently associated with self-reported drinking and driving in the SUN cohort. Non-drivers were excluded. Either the answer "Yes, sometimes" or "Almost never" were considered as outcomes.

From: Self-reported drinking and driving amongst educated adults in Spain: The "Seguimiento Universidad de Navarra" (SUN) cohort findings

  Men (n = 6,365) Women (n = 8,602)
  n Multivariate OR
(95% CI)
N Multivariate OR
(95% CI)
Age group     
<25 318 1 (ref.) 1087 1 (ref.)
25–<30 817 1.57 (1.16–2.12) 2043 2,05 (1,71–2,47)
30–<35 860 3.30 (2.42–4.52) 1562 2,97 (2,44–3,61)
35–<40 837 4.13 (3.00–5.70) 1189 3,33 (2,70–4,10)
40–<45 735 3.24 (2.33–4.51) 945 3,03 (2,43–3,79)
45–<50 778 3.36 (2.41–4.68) 841 2,31 (1,84–2,90)
>= 50 2020 3.46 (2.56–4.69) 935 2,14 (1,70–2,68)
Health-related profession     
Medical Doctor 1388 1.22 (1.05–1.43) 1281 1,20 (1,04–1,38)
Nurse 196 2.05 (1.38–3.05) 2165 1,27 (1,09–1,48)
Not health-related 4781 1 (ref.) 5156 1 (ref.)
Average km driven/yr     
<1,000 223 1 (ref.) 1020 1 (ref.)
1,000–10,000 1300 2.64 (1.89–3.70) 3406 1,28 (1,09–1,51)
10,001–20,000 2304 3.58 (2.58–4.98) 2408 1,72 (1,45–2,04)
20,001–50,000 2224 4.06 (2.91–5.65) 1579 2,00 (1,67–2,40)
>50,000 314 3.71 (2.45–5.64) 189 2,54 (1,80–3,58)
Use of seat belts     
Always 5508 1 (ref.) 7473 1 (ref.)
Not always 735 1.84 (1.50–2.25) 999 1,61 (1,39–1,86)
Never/Almost never 122 1.67 (1.05–2.65) 130 1,79 (1,22–2,63)
Mean alcohol intake (g/d)     
0 735 1 (ref.) 2372 1 (ref.)
<= 10 3274 2.56 (2.09–3.13) 5242 2,57 (2,25–2,94)
10–20 1287 3.11 (2.42–4.00) 740 3,64 (2,93–4,52)
>20 1069 3.07 (2.32–4.06) 248 3,74 (2,70–5,19)
Drinking pattern (days/wk)     
None or almost never 1503 1 (ref.) 4181 1 (ref.)
1–5 3207 3.42 (2.91–4.00) 3772 2,12 (1,89–2,37)
6–7 1655 4.48 (3.64–5.51) 649 2,49 (2,02–3,08)
Binge Drinking (drinks/session)     
<= 5 3839 1 (ref.) 6714 1 (ref.)
>5 (some occasions) 2526 1.86 (1.62–2.14) 1888 1,47 (1,30–1,66)
History of traffic injury     
No 5939 1 (ref.) 8223 1 (ref.)
Yes 426 0.88 (0.69–1.11) 379 1,60 (1,28–2,02)
Smoking (cig/d)     
Never smokers 2889 1 (ref.) 4394 1 (ref.)
<15 642 1.19 (0.97–1.47) 1403 1,05 (0,92–1,20)
>+15 582 1.23 (0.99–1.54) 616 1,25 (1,04–1,51)
Ex-smokers (>1 yr) 2252 1.32 (1.14–1.53) 2189 1,27 (1,13–1,43)