Smoking behaviour and demographic characteristics of baseline sample, participants followed to wave 2 and participants lost to follow-up†
| Characteristics at baseline (2006) | All participants at wave 1 (n=1079) | Followed-up (n=756) | Not followed-up (n=323) | |||
| Mean/% | n | Mean/% | n | Mean/% | n | |
| Age** | 39.10 | 1079 | 40.2 | 756 | 36.5 | 323 |
| Sex* | ||||||
| Female | 39.5% | 426 | 41.8% | 316 | 34.1% | 110 |
| Male | 60.5% | 653 | 58.2% | 440 | 65.9% | 213 |
| Marital status | ||||||
| Couple | 65.6% | 706 | 66.5% | 502 | 63.6% | 204 |
| Separated/widowed | 12.6% | 136 | 12.6% | 95 | 12.8% | 41 |
| Single | 21.7% | 234 | 20.9% | 158 | 23.7% | 76 |
| Education level** | ||||||
| Primary graduate or less | 30.3% | 320 | 33.4% | 248 | 22.9% | 72 |
| Secondary graduate | 37.4% | 395 | 34.6% | 257 | 43.8% | 138 |
| High school or technical school graduate or more | 32.4% | 342 | 31.9% | 237 | 33.3% | 105 |
| Employment status | ||||||
| Employed | 68.7% | 337 | 67.8% | 511 | 70.9% | 229 |
| Unemployed or inactive‡ | 31.3% | 740 | 32.2% | 243 | 29.1% | 94 |
| Monthly household income* | ||||||
| Low ($0 to $3000 pesos) | 25.2% | 248 | 27.9% | 190 | 19.1% | 58 |
| Medium ($3001 to $5000 pesos) | 32.5% | 320 | 30.8% | 210 | 36.2% | 110 |
| High ($5001 pesos or more) | 42.4% | 418 | 41.3% | 282 | 44.7% | 136 |
| Smoking status | ||||||
| Daily | 77.8% | 840 | 77.9% | 589 | 77.7% | 251 |
| Less than daily | 22.2% | 239 | 22.1% | 167 | 22.3% | 72 |
| No. of cigarettes per day | 1052 | 8.1 | 739 | 7.9 | 313 | |
| Form of last cigarette purchase | ||||||
| Pack of cigarettes | 90.5% | 963 | 90.4% | 671 | 90.7% | 292 |
| Single cigarette | 9.1% | 97 | 9.3% | 69 | 8.7% | 28 |
| Carton of 10 cigarette packs | 0.4% | 4 | 0.3% | 2 | 0.6% | 2 |
| Self-reported price of last pack purchased (MX$ November 2007) | $20.83 | 957 | $20.76 | 666 | $21.00 | 291 |
| Made serious quit attempt in previous year | ||||||
| Yes | 25.8% | 278 | 26.5% | 200 | 24.2% | 78 |
| No | 74.2% | 801 | 73.5% | 556 | 75.9% | 245 |
| Plan to quit | ||||||
| Within the next month/next 6 months | 17.0% | 171 | 17.3% | 122 | 16.4% | 49 |
| Beyond 6 months/not planning to quit | 83.0% | 833 | 82.7% | 584 | 83.6% | 249 |
Statistically significant differences between the sample that was and was not followed-up are indicated with *p<0.05; **p<0.01.
↵† Unweighted means and proportions shown and used when conducting t tests and χ2 tests of significant differences between samples. No differences were found between the baseline sample and followed-up sample.
↵‡ Inactive means retired or on a pension, student, or home duties.