Rate ratios and 95% CI from negative binomial regression of log of number of Quitline calls on covariates
| Covariates | Crude RR (95% CI) | p Value | Adjusted RR (95% CI) | P Value |
|---|---|---|---|---|
| *The rate ratio and confidence limits for week are slightly smaller than unity. | ||||
| Socioeconomic status (SES) | <0.001 | <0.001 | ||
| 1st quintile (high disadvantage) | 1.00 | 1.00 | ||
| 2nd quintile | 1.14 (1.02 to 1.28) | 1.15 (1.07 to 1.24) | ||
| 3rd quintile | 1.17 (1.04 to 1.31) | 1.17 (1.08 to 1.27) | ||
| 4th quintile | 1.22 (1.00 to 1.26) | 1.23 (1.04 to 1.21) | ||
| 5th quintile (low disadvantage) | 1.54 (1.38 to 1.73) | 1.57 (1.45 to 1.69) | ||
| Antismoking TARPs | <0.001 | <0.001 | ||
| Zero | 1.00 | 1.00 | ||
| Medium | 1.58 (1.48 to 1.69) | 1.58 (1.49 to 1.68) | ||
| High | 2.62 (2.44 to 2.80) | 2.52 (2.37 to 2.69) | ||
| Nicotine replacement therapy TARPs | ||||
| Zero | 1.00 | <0.001 | 1.00 | <0.001 |
| Medium | 1.11 (1.02 to 1.22) | 1.14 (1.07 to 1.21) | ||
| High | 1.42 (1.29 to 1.56) | 1.23 (1.16 to 1.32) | ||
| Week | 1.00 (1.00 to 1.00)* | <0.006 | 1.00 (1.00 to 1.00) | <0.001 |