Table 1 Description of the five groups of smokers given free nicotine patches
Amount of free nicotine patches sent to smokers | Group 1 2-week supply | Group 2 4-week supply | Group 3 6-week supply contingent upon first 2-weeks of use | Group 4 6-week supply | Group 5 8-week supply |
|---|---|---|---|---|---|
Number of Participants | 19,852 | 38,667 | 19,859 | 35,334 | 2,000 |
Survey Sample Size | 490 | 588 | 731 | 1,386 | 707 |
Program Dates | 11/2004 - 8/2005 | 9/2005 - 5/2006 | 11/2004 - 5/2006 | 4/2003 - 5/2003 | 4/2004 - 6/2004 |
Mean duration of follow-up for the initial follow-up survey (months) | 3.14 | 3.12 | 3.15 | 5.51 | 7.24 |
Response rate initial follow-up survey* | 69.0% | 69.0% | 45.2% | 63.7% | 68.7% |
Number of eligible subjects who completed the initial follow-up survey | 338 | 406 | 332 | 880 | 486 |
Mean duration of follow-up for the 12-month follow-up survey (months) | 12.85 | 12.08 | 12.03 | 14.00 | 12.50 |
Response rate 12-month follow-up survey** | 68.6% | 56.9% | 50.0% | 65.6% | 73.3% |
Number of eligible subjects who completed both surveys | 232 | 231 | 166 | 577 | 356 |
Overall response rate 12-month follow-up survey*** | 47.3% | 39.3% | 22.7% | 41.6% | 50.3% |