Table 2

 Bivariate associations between sample characteristics and heavy drinking, frequent drinking and drinking at work (n = 5338)*

CharacteristicsHeavy drinkingFrequent drinkingDrinking at work
%OR (95% CI)p Value%OR (95% CI)p Value%OR (95% CI)p Value
*All bivariate analyses were conducted including design variables (worksite dominant occupation and management drinking tolerance).
†Quartile ranges: 1st 2.58–2.77, 2nd 2.78–2.93, 3rd 2.94–3.03, 4th 3.04–3.36.
‡Worksite dominant occupation adjusting for management drinking tolerance and vice versa.
Workgroup drinking social norms
1st Quartile24.8110.7123.71
2nd Quartile23.90.84 (0.65 to 1.10)0.2059.30.82 (0.55 to 1.22)0.32712.40.57 (0.40 to 0.80)0.001
3rd Quartile18.70.58 (0.44 to 0.78)<0.0017.20.59 (0.39 to 0.92)0.0187.30.45 (0.31 to 0.65)<0.001
4th Quartile10.90.38 (0.27 to 0.54)<0.0015.40.36 (0.22 to 0.60)<0.0013.40.20 (0.12 to 0.34)<0.001
Sociodemographics
Gender
    Male20.2110.4113.01
    Female17.10.55 (0.47 to 0.65)<0.0013.90.37 (0.28 to 0.48)<0.0017.30.47 (0.38 to 0.59)<0.001
Age (years)
    ⩽3431.715.4110.41
    35–4418.80.52 (0.44 to 0.62)<0.0018.51.47 (1.10 to 1.96)0.00911.71.07 (0.85 to 1.36)0.549
    45–5411.90.32 (0.26 to 0.39)<0.0019.11.56 (1.16 to 2.11)0.00311.21.16 (0.91 to 1.49)0.228
    ⩾556.70.17 (0.12 to 0.24)<0.0019.41.62 (1.12 to 2.36)0.0118.20.94 (0.65 to 1.34)0.724
Race
    White, non–Hispanic19.817.8110.91
    Hispanic20.71.13 (0.78 to 1.64)0.5087.60.97 (0.55 to 1.69)0.91110.31.17 (0.71 to 1.92)0.539
    African-American12.40.53 (0.38 to 0.74)<0.00110.21.44 (1.01 to 2.06)0.04711.11.24 (0.87 to 1.75)0.236
    Other10.90.50 (0.30 to 0.82)0.0066.10.74 (0.38 to 1.41)0.3597.30.58 (0.32 to 1.08)0.085
Education
    ⩽High school13.717.814.61
    Technical school18.51.49 (1.16 to 1.92)0.0027.00.86 (0.60 to 1.24)0.4146.51.38 (0.92 to 2.06)0.121
    Some college21.01.44 (1.16 to 1.79)0.0017.21.01 (0.74 to 1.38)0.9359.41.99 (1.44 to 2.76)<0.001
    Two year college degree16.11.05 (0.78 to 1.40)0.7484.70.63 (0.39 to 1.00)0.05310.92.19 (1.49 to 3.21)<0.001
    Four year college degree25.91.86 (1.51 to 2.29)<0.0018.81.21 (0.90 to 1.62)0.20315.92.98 (2.21 to 4.03)<0.001
    Graduate degree20.11.37 (1.06 to 1.78)0.01811.11.39 (0.99 to 1.95)0.05924.23.66 (2.65 to 5.06)<0.001
Religiosity
    Once or more a week10.614.618.11
    At least once a month19.41.97 (1.61 to 2.42)<0.0016.21.38 (1.01 to 1.90)0.04211.41.38 (1.08 to 1.77)0.010
    Less than twice a year24.92.73 (2.26 to 3.28)<0.00111.52.78 (2.13 to 3.63)<0.00112.41.64 (1.31 to 2.06)<0.001
Marital status
    Never married35.515.7112.81
    Married15.10.36 (0.30 to 0.44)<0.0017.71.22 (0.87 to 1.73)0.25010.60.82 (0.63 to 1.06)0.139
    Separated21.90.55 (0.44 to 0.70)<0.0017.61.31 (0.86 to 1.99)0.20510.50.95 (0.68 to 1.32)0.752
    Remarried16.40.43 (0.33 to 0.55)<0.00111.11.85 (1.25 to 2.73)0.00210.10.94 (0.68 to 1.31)0.727
Living with children
    No21.818.1111.11
    Yes15.70.68 (0.59 to 0.78)<0.0017.70.91 (0.75 to 1.12)0.37610.40.83 (0.69 to 0.99)0.039
Health-related
Smoker
    Never16.115.4110.11
    Ex-smoker18.81.29 (1.10 to 1.53)0.0029.01.72 (1.35 to 2.20)<0.00112.31.40 (1.14 to 1.72)0.001
    Smoker25.61.95 (1.64 to 2.31)<0.00111.82.50 (1.94 to 3.22)<0.00110.31.39 (1.09 to 1.76)0.007
Occupational
Working offsite
    No18.517.017.71
    Yes20.81.14 (0.97 to 1.35)0.11810.91.49 (1.19 to 1.87)0.00120.62.13 (1.76 to 2.59)<0.001
Annual salary ($)
    <20K20.813.314.31
    20–29K18.11.13 (0.84 to 1.51)0.4133.71.15 (0.61 to 2.16)0.6735.61.78 (1.02 to 3.10)0.041
    30–39K17.51.31 (0.96 to 1.78)0.0907.62.35 (1.26 to 4.38)0.0078.22.44 (1.38 to 4.30)0.002
    40–49K20.81.76 (1.27 to 2.44)0.0019.52.94 (1.56 to 5.56)0.00110.12.95 (1.65 to 5.28)<0.001
    50–59K20.81.67 (1.19 to 2.34)0.00311.03.64 (1.91 to 6.92)<0.00113.23.81 (2.12 to 6.82)<0.001
    >60K18.51.32 (0.94 to 1.85)0.11213.44.51 (2.39 to 8.51)<0.00125.36.20 (3.52 to 10.92)<0.001
Availability of alcohol at work
    High17.217.9111.31
    Low21.70.79 (0.70 to 0.91)0.0018.00.93 (0.76 to 1.14)0.48510.11.09 (0.90 to 1.31)0.365
Workgroup size
    Number of people (increments of 10)0.96 (0.95 to 0.98)<0.0010.96 (0.94 to 0.98)<0.0010.96 (0.94 to 0.98)<0.001
Design effects
Worksite dominant occupation‡
    Professional21.319.6122.11
    Service25.81.30 (1.08 to 1.56)0.0054.70.46 (0.34 to 0.64)<0.0016.60.25 (0.20 to 0.33)<0.001
    Manufacturing14.90.67 (0.57 to 0.80)<0.0018.50.91 (0.72 to 1.14)0.4237.00.31 (0.25 to 0.37)<0.001
Management drinking tolerance‡
    Liberal21.318.6115.51
    Conservative17.20.85 (0.74 to 0.98)0.0257.40.82 (0.67 to 1.01)0.0647.00.49 (0.40 to 0.58)<0.001