ORs from adjusted logistic models of multiple imputation quit rates at 6 and 12 months, N=1785
| 6-Month survey outcomes | 12-Month survey outcomes | |||
|---|---|---|---|---|
| Variable | Did not smoke in the last 7 days | Did not smoke in the last 30 days | Did not smoke in the last 7 days | Did not smoke in the last 30 days |
| Randomisation groups | ||||
| Standard plus TEQ-10 vs standard | 1.15 (0.83 to 1.59) | 1.14 (0.85 to 1.54) | 1.07 (0.82 to 1.41) | 0.96 (0.71 to 1.30) |
| Standard plus TEQ-20 vs standard | 1.00 (0.71 to 1.42) | 1.01 (0.74 to 1.37) | 0.87 (0.64 to 1.19) | 0.75 (0.52 to 1.09) |
| Number of programme counselling calls | ||||
| Planned+participant−initiated | 1.10 (1.02 to 1.18)* | 1.10 (1.02 to 1.19)* | 1.12 (1.02 to 1.22)* | 1.10 (1.02 to 1.19)* |
| Demographics | ||||
| Gender | ||||
| Female vs male | 0.92 (0.70 to 1.21) | 1.00 (0.80 to 1.25) | 1.17 (0.91 to 1.49) | 1.16 (0.92 to 1.46) |
| Age | 1.02 (1.01 to 1.03)*** | 1.02 (1.00 to 1.03)** | 1.01 (0.99 to 1.02) | 1.01 (0.99 to 1.02) |
| Race | ||||
| African–American vs Caucasian | 1.32 (0.89 to 1.96) | 1.41 (0.91 to 2.21) | 1.16 (0.75 to 1.80) | 1.12 (0.72 to 1.76) |
| Other vs Caucasian | 0.73 (0.34 to 1.56) | 0.72 (0.32 to 1.66) | 1.09 (0.55 to 2.16) | 0.98 (0.53 to 1.81) |
| Education | ||||
| High school or less vs more than high school | 1.12 (0.84 to 1.50) | 1.05 (0.77 to 1.43) | 0.86 (0.65 to 1.13) | 1.01 (0.76 to 1.33) |
| Comorbidities | ||||
| Any chronic comorbidity | 0.69 (0.51 to 0.94)* | 0.65 (0.46 to 0.92)* | 0.72 (0.53 to 0.98)* | 0.76 (0.56 to 1.03) |
| Tobacco use | ||||
| Cigarettes per day | 0.98 (0.97 to 0.99)* | 0.99 (0.97 to 1.00) | 0.98 (0.97 to 1.00) | 0.99 (0.98 to 1.00) |
| Time to first cigarette | ||||
| 5 min vs all others | 0.92 (0.68 to 1.24) | 1.10 (0.82 to 1.48) | 0.88 (0.64 to 1.20) | 0.85 (0.65 to 1.12) |
| Number of quit attempts | ||||
| 2–5 vs 0–1 | 0.96 (0.69 to 1.34) | 0.98 (0.75 to 1.29) | 0.80 (0.58 to 1.10) | 0.93 (0.69 to 1.24) |
| 6+ vs 0–1 | 0.88 (0.57 to 1.35) | 0.85 (0.56 to 1.28) | 0.68 (0.47 to 0.99)* | 0.79 (0.55 to 1.13) |
| Social contact with smokers | ||||
| Work or home vs all others | 0.74 (0.56 to 0.97)* | 0.95 (0.73 to 1.24) | 0.98 (0.74 to 1.30) | 0.89 (0.68 to 1.17) |
| Scale scores | ||||
| Motivation to quit | 1.24 (1.12 to 1.36)*** | 1.24 (1.11 to 1.39)*** | 1.22 (1.11 to 1.34)*** | 1.23 (1.12 to 1.35)*** |
| Depression | 0.87 (0.78 to 0.96)** | 0.88 (0.80 to 0.97)** | 0.94 (0.83 to 1.06) | 0.89 (0.80 to 0.99)* |
All variables shown were included in each model. Estimates for each model were obtained by combining results across 10 multiply imputed data sets; 95% CIs are shown in parentheses.
*p<0.05; **p<0.01; ***p<0.001.
TEQ-10, Technology Enhanced Quitline-10.