Table 2A

Regression model for ‘Preventability’, with age, education level and household income modelled as nominal variables

ParameterEstimateSEt ValuePr > |t|95% confidence limits
Intercept30.866514751.991652540.590.5528−71.0592158132.7922452
Campaign exposed0.273887440.039854846.87<0.00010.195755030.35201985
Not exposed0
Age 35–44years0.258550920.047653485.43<0.00010.165129850.35197200
Age 45–55years0.397694680.046802368.50<0.00010.305942180.48944719
Age 25–34 years0
Male−0.185678580.03764061−4.93<0.0001−0.25947018−0.11188699
Female0
Married0.046635050.053624480.870.3845−0.058491720.15176182
Domestic partnership0.047460750.063196490.750.4527−0.076431220.17135272
Widowed−0.345531490.19736179−1.750.0800−0.732444460.04138147
Divorced0.120663970.083530661.440.1486−0.043091620.28441956
Separated0.065150860.114041810.570.5678−0.158419550.28872127
Single (never married)0
Self-employed−0.098019150.09528868−1.030.3037−0.284825460.08878716
Employed full-time−0.046077280.08426554−0.550.5845−0.211273540.11911898
Employed part-time0.007248930.095311680.080.9394−0.179602460.19410032
Student0.142574460.132827241.070.2831−0.117823370.40297229
Retired0.111636680.129029520.870.3870−0.141316010.36458936
Homemaker0.027200380.104828990.260.7953−0.178308980.23270974
Unemployed0
Some high school2.440144790.532153434.59<0.00011.396897963.48339162
Graduated high school2.403993110.522989334.60<0.00011.378711793.42927442
Trade school/attended college2.547328250.522866054.87<0.00011.522288623.57236787
Some college or university2.505931090.522169604.80<0.00011.482256803.52960537
Graduated college/university2.527425750.521791034.84<0.00011.504493613.55035788
Post graduate2.483054320.524096554.74<0.00011.455602393.51050624
Eighth grade or less0
Parent0.124366670.043581382.850.00430.038928640.2098047
Not a parent0
Income $25 000–$39 9990.052040120.085166870.610.5412−0.114923130.21900337
Income $40 000–$49 9990.089439380.094059410.950.3417−0.094957020.27383579
Income $50 000–$59 9990.029981610.090470070.330.7404−0.147378170.20734138
Income $60 000–$74 9990.058027200.090220050.640.5201−0.118842440.23489684
Income $75 000 or more0.152513750.081243221.880.0605−0.006757480.31178497
Income prefer not to answer0.071784170.083483000.860.3899−0.091877980.23544631
Income under $25 0000
Injury to self in past 12 months−0.114005540.05464297−2.090.0370−0.22112897−0.0068821
No injury to self in past 12 months0
Injury to family in past 12 months0.089433700.043623962.050.04040.003912190.17495520
No injury to family in past 12 months0
Passenger in vehicle with drinking driver0.006775880.039203810.170.8628−0.070080240.08363201
Not a passenger in vehicle with drinking driver0
Campaign slogan ‘Seriously?’0.05588350.072828510.770.4429−0.086891330.19865832
Campaign slogan ‘Have a word with yourself’0
Region Fraser Valley−0.106347150.05631172−1.890.0590−0.216742050.00404774
Region Vancouver Island−0.080055520.06444068−1.240.2142−0.206386630.04627560
Region Northern0.073226340.065437511.120.2632−0.055059000.20151167
Region Vancouver Coastal−0.177434870.05929829−2.990.0028−0.29368472−0.06118502
Region Interior0
Year−0.012755820.02582722−0.490.6214−0.063388150.03787651
  • Predictor variables that achieved p value<0.025 are shown in bold font.