Table 3 Baseline characteristics of the total sample and comparability of the three groups
|  | Total (N = 625) | UC (n = 245) | TC (n = 223) | FC (n = 157) |
|---|---|---|---|---|
Variables | N (%)/M (SD) | N (%)/M (SD) | N (%)/M (SD) | N (%)/M (SD) |
Gender (male) | 457 (73.1%) | 183 (74.7%) | 163 (73.1%) | 111 (70.7%) |
Age | 55.8 (11.08) | 55.8 (11.88) | 55.31 (10.53) | 56.5 (10.57) |
Marital status | Â | Â | Â | Â |
 Married with/without children | 413 (67.8%) | 160 (67.5%) | 151 (68.5%) | 102 (66.7%) |
 Single/divorced/widow | 196 (32.2%) | 77 (32.5%) | 68 (31.5%) | 31 (33.3%) |
Education level a | Â | Â | Â | Â |
 Low education | 244 (40.5%) | 97 (41.8%) | 83 (38.1%) | 64 (41.8%) |
 Intermediate education | 233 (38.6%) | 83 (35.8%) | 88 (40.4%) | 62 (40.5%) |
 High education | 126 (20.9%) | 52 (22.4%) | 47 (21.6%) | 27 (17.6%) |
Disease diagnosis and/or treatment b | Â | Â | Â | Â |
 ACS (unstable angina, non-stemi, stemi) | 530 (84.8%) | 210 (85.7%) | 191 (85.7%) | 129 (82.2%) |
 Stable angina | 53 (8.5%) | 16 (6.5%) | 23 (10.3%) | 14 (8.9%) |
 Other diagnosis/unknown | 42 (6.7%) | 19 (7.8%) | 9 (4.0%) | 14 (8.9%) |
Previous hospital admission (yes) | 122 (20.2%) | 48 (20.7%) | 37 (17.0%) | 37 (24.0%) |
Nicotine dependence c | 5.25 (2.18) | 4.99 (2.28)* | 5.27 (2.14) | 5.62 (2.01) |
Average cigarettes per day | 21.13 (13.04) | 19.69 (10.64) | 21.83 (15.78) | 22.31 (11.82) |
Seven-day abstinence at admission (PPA) (yes) | 183 (29.3%) | 79 (34.3%) | 64 (29.4%) | 40 (27.6%) |
Quit attempts over the past 12 months (yes) | 188 (30.5%) | 87 (36.3%) | 55 (24.9%) | 46 (29.6%) |
Intention to quit d | 7.53 (2.17) | 7.54 (2.30) | 7.55 (2.1) | 7.49 (2.06) |