| Characteristic* | Period; no. (%) of new callers† | p value | ||
|---|---|---|---|---|
| Total | Before new policy | After new policy | ||
| All new callers | n = 12 157 | n = 4815 | n = 7342 | |
| Age, yr, mean ± SD | 45.6 ± 14.9 | 47.0 ± 14.1 | 44.6 ± 15.3 | < 0.001 |
| Sex, male | 5709 (47.0) | 1966 (40.8) | 3743 (51.0) | < 0.001 |
| Education, high school or less | 4160 (46.1) | 1384 (37.7) | 2766 (51.9) | < 0.001 |
| Ethnicity, white | 6730 (81.7) | 2400 (85.7) | 4330 (79.6) | < 0.001 |
| Smoking status at time of call | < 0.001 | |||
| Daily | 10 115 (83.2) | 3692 (76.7) | 6423 (87.5) | |
| Occasional | 133 (1.1) | 47 (1.0) | 86 (1.2) | |
| Recently quit | 1909 (15.7) | 1076 (22.4) | 833 (11.4) | |
| Smokers (daily or occasional) | n = 10 248 | n = 3739 | n = 6509 | |
| Cigarette consumption per day | 0.8 | |||
| 1-10 | 2904 (24.5) | 1151 (24.9) | 1753 (24.3) | |
| 11-20 | 3967 (33.5) | 1546 (33.4) | 2421 (33.5) | |
| 21-30 | 3420 (28.9) | 1335 (28.9) | 2085 (28.9) | |
| ≥ 31 | 1563 (13.2) | 595 (12.9) | 968 (13.4) | |
| Time to first cigarette in morning, min | 0.04 | |||
| ≥ 61 | 1118 (11.8) | 391 (11.1) | 727 (12.3) | |
| 31-60 | 884 (9.4) | 327 (9.3) | 557 (9.4) | |
| 6-30 | 2856 (30.2) | 1025 (29.2) | 1831 (30.9) | |
| < 5 | 4592 (48.6) | 1773 (50.4) | 2819 (47.5) | |
| Heaviness of Smoking Index | 0.2 | |||
| Low | 2518 (26.7) | 913 (26.0) | 1605 (27.1) | |
| Medium | 4028 (42.7) | 1544 (44.0) | 2484 (42.0) | |
| High | 2886 (30.6) | 1053 (30.0) | 1833 (31.0) | |
| Intention to quit in 30 d | 9199 (90.4) | 3276 (88.6) | 5923 (91.3) | < 0.001 |
*Missing data for age (n = 824), sex (n = 6), education (n = 3134), ethnicity (n = 3915), cigarette consumption (n = 303), time to first cigarette in the morning (n = 798), Heaviness of Smoking Index (n = 816) and intention to quit in 30 d (n = 67).
†Unless stated otherwise.