Selected characteristics of study sample, 2010–2012 ITC Mexico Survey
| Characteristic* | Smoking intensity sample N=2540 | Quit behaviour sample N=1699 | Relapse sample N=374 |
|---|---|---|---|
| Age, mean (SE) | 39.4 (0.5) | 39.4 (0.5) | 40.7 (1.1) |
| Sex, n (%) | |||
| Female | 916 (36.2) | 624 (37.0) | 149 (39.5) |
| Education, n (%) | |||
| Primary education or less | 818 (31.7) | 553 (32.1) | 113 (29.0) |
| Middle school | 783 (31.1) | 547 (31.6) | 118 (33.8) |
| Vocational school, high school, incomplete university | 709 (27.7) | 436 (26.5) | 99 (24.1) |
| University and postgraduate | 230 (9.1) | 163 (9.9) | 44 (13.1) |
| Income, n (%) | |||
| 0–3000 | 688 (26.1) | 384 (22.4) | 98 (24.8) |
| 3001–5000 | 743 (28.4) | 609 (36.8) | 105 (28.3) |
| 5001–8000 | 502 (20.1) | 367 (21.6) | 92 (26.4) |
| ≥8001 | 420 (17.7) | 236 (14.4) | 55 (14.5) |
| Unknown | 187 (7.8) | 103 (5.8) | 24 (6.0) |
| Smoking intensity, n (%)† | |||
| Non-daily smoker | 794 (31.3) | ||
| Daily light smokers (1–5 cigarettes per day) | 781 (30.0) | ||
| Daily heavy smokers (6+cigarettes per day) | 957 (38.7) | ||
| Smoking status, n (%)‡ | |||
| Quit (<30 days) | 4 (0.3) | 0 (0.0) | |
| Quit (≥30 days) | 208 (12.5) | 260 (64.3) | |
| Non-daily smoker | 442 (27.0) | 61 (18.2) | |
| Daily smokers | 1045 (60.1) | 53 (15.4) | |
| Tried to quit within last year, n (%) | |||
| Yes | 595 (37.2) | ||
| Quit for at least 1 month, n (%) | |||
| Yes | 208 (12.5) | ||
| Relapse, n (%) | |||
| Yes | 114 (33.6) | ||
| People per AGEB, mean (range) | 18.9 (8–32) | 12.9 (3–32) | 1.8 (1–8) |
| Neighbourhood deprivation, n (%) | |||
| Very low | 546 (22.0) | 317 (19.3) | 69 (16.94) |
| Low | 617 (24.7) | 441 (25.7) | 92 (27.51) |
| Medium | 1025 (40.1) | 712 (41.7) | 154 (40.31) |
| High/very high | 352 (13.2) | 229 (13.3) | 59 (15.24) |
*Percentages are weighted for appropriate characteristics. Mean and SE for age are also calculated taking into account complex survey design. The mean and range for people per AGEB are not weighted.
†Smoking intensity at wave 4 among smokers, or wave 5 or 6 for new recruit smokers.
‡Smoking status at wave 5 if smoking at wave 4 or 6 if new recruit smoker at wave 5 for quit behaviour sample; smoking status at wave 5 if quit at wave 4 or 6 if newly quit at wave 5 for relapse sample.
AGEB, Áreas Geoestadísticas Básicas; ITC, International Tobacco Control.