TABLE 2—
Logistic Regression Models Examining Variables Associated With Targeted Knowledge Among Adult Smokers, by Education Level: Wisconsin Tobacco Survey, 2003
| Analytic Sample | Validation Sample | |||||||||
| Overall, OR (95% CI) | Less Than High School Diploma, OR (95% CI) | At Least Some College, OR (95% CI) | Income < $50000, OR (95% CI) | Income ≥ $50000, OR (95% CI) | Overall, OR (95% CI) | Less Than High School Diploma, OR (95% CI) | At Least Some College, OR (95% CI) | Income < $50000, OR (95% CI) | Income ≥ $50000, OR (95% CI) | |
| “Have you ever heard of the Wisconsin Quit Line?” (Yes) | ||||||||||
| Recall KTQ ads | 2.29*** (1.48, 3.52) | 2.37** (1.27, 4.44) | 2.23** (1.21, 4.09) | 2.09** (1.23, 3.56) | 2.76* (1.27, 6.00) | 1.55* (1.19, 2.01) | 1.34 (0.94, 1.90) | 1.86** (1.24, 2.80) | 1.59* (1.15, 2.19) | 1.51 (0.95, 2.39) |
| Recall SHS ads | 1.20 (0.78, 1.86) | 0.88 (0.47, 1.66) | 1.60 (0.86, 2.97) | 1.23 (0.71, 2.13) | 1.26 (0.58, 2.74) | 1.29 (0.99, 1.68) | 1.55* (1.09, 2.23) | 1.01 (0.68, 1.51) | 1.36 (0.97, 1.91) | 1.18 (0.76, 1.84) |
| “Breathing smoke from someone else’s cigarette is harmful.” (Agree) | ||||||||||
| Recall KTQ ads | 0.67 (0.35, 1.29) | 0.56 (0.20, 1.55) | 0.77 (0.32, 1.83) | 0.62 (0.29, 1.33) | 0.96 (0.26, 3.54) | 1.11 (0.74, 1.65) | 0.87 (0.52, 1.46) | 1.56 (0.80, 3.03) | 1.05 (0.65, 1.71) | 1.26 (0.61, 2.60) |
| Recall SHS ads | 2.11* (1.11, 3.99) | 2.05 (0.75, 5.60) | 2.23 (0.95, 5.24) | 2.44* (1.14, 5.22) | 1.32 (0.39, 4.53) | 1.88** (1.29, 2.76) | 1.78* (1.07, 2.94) | 2.01* (1.12, 3.58) | 1.77* (1.10, 2.84) | 2.16* (1.13, 4.11) |
| “Secondhand smoke is not as dangerous as people make it out to be.” (Disagree) | ||||||||||
| Recall KTQ ads | 1.13 (0.69, 1.85) | 1.00 (0.48, 2.08) | 1.31 (0.67, 2.57) | 1.14 (0.63, 2.04) | 0.85 (0.51, 3.46) | 0.96 (0.71, 1.31) | 1.14 (0.76, 1.72) | 0.76 (0.47, 1.23) | 0.91 (0.62, 1.32) | 1.07 (0.63, 1.83) |
| Recall SHS ads | 1.63* (1.00, 2.65) | 2.20* (1.08, 4.48) | 1.23 (0.63, 2.43) | 2.07* (1.15, 3.72) | 1.22 (0.73, 2.04) | 0.92 (0.68, 1.25) | 1.11 (0.73, 1.68) | 0.73 (0.46, 1.15) | 0.90 (0.61, 1.33) | 0.94 (0.56, 1.56) |
| “Tobacco companies lie to get someone hooked on smoking.” (Agree) | ||||||||||
| Recall KTQ ads | 0.83 (0.53, 1.31) | 0.95 (0.48, 1.87) | 0.72 (0.38, 1.34) | 0.85 (0.48, 1.49) | 0.80 (0.36, 1.75) | 1.16 (0.88, 1.54) | 1.07 (0.73, 1.56) | 1.24 (0.80, 1.91) | 1.08 (0.76, 1.54) | 1.31 (0.81, 2.12) |
| Recall SHS ads | 1.38 (0.87, 2.20) | 1.29 (0.66, 2.55) | 1.43 (0.74, 2.76) | 1.51 (0.84, 2.69) | 1.26 (0.57, 2.78) | 1.40* (1.06, 1.85) | 1.27 (0.87, 1.87) | 1.55* (1.02, 2.36) | 1.19 (0.83, 1.71) | 1.84* (1.17, 2.89) |
| “Tobacco companies fool young people into believing smoking is OK.” (Agree) | ||||||||||
| Recall KTQ ads | 1.14 (0.74, 1.76) | 1.27 (0.66, 2.44) | 1.00 (0.55, 1.82) | 1.16 (0.68, 1.97) | 1.22 (0.56, 2.66) | 1.00 (0.77, 1.31) | 0.92 (0.64, 1.31) | 1.14 (0.76, 1.72) | 0.95 (0.68, 1.33) | 1.13 (0.72, 1.79) |
| Recall SHS ads | 1.33 (0.85, 2.08) | 1.07 (0.55, 2.07) | 1.65 (0.88, 3.07) | 1.19 (0.69, 2.08) | 1.48 (0.67, 3.23) | 1.18 (0.90, 1.55) | 0.99 (0.69, 1.43) | 1.45 (0.97, 2.18) | 0.93 (0.66, 1.32) | 1.71* (1.10, 2.66) |
Notes. OR = odds ratio; CI = confidence interval; KTQ = keep trying to quit; SHS = secondhand smoke. Variables that were associated with KTQ or SHS ad recall were included as covariates, including age, non-Hispanic White race/ethnicity, marital status, doctor advice to quit, and average daily television viewing.
*P < .05; **P < .01; ***P < .001.