Table 1.
Descriptive Statistics for 921 Ever Smokers From the Interdisciplinary Study of Inequalities in Smoking (ISIS) Study (Montreal, Canada, 2011–2012), Complete Sample and by Smoking Status
| Complete sample (n = 921) |
Former smokers 49.3% (n = 454) |
Current smokers 50.7% (n = 467) |
t Test/χ2p value | |
|---|---|---|---|---|
| Individual-level characteristics | ||||
| Age (y), mean (SD) | 21.7 (2.3) | 21.8 (2.3) | 21.6 (2.3) | .351 |
| Female, % | 54.9 | 57.9 | 52.0 | .072 |
| Educational attainment, %* | ||||
| High school or less | 22.3 | 17.0 | 27.4 | <.001 |
| CEGEP/trade school | 38.7 | 37.9 | 39.4 | |
| University | 39.1 | 45.2 | 33.2 | |
| Occupation, %a | ||||
| Not in education nor employment | 8.4 | 7.3 | 9.5 | .331 |
| In education (and employed or not) | 65.0 | 67.1 | 63.0 | |
| In employment only | 26.5 | 25.6 | 27.5 | |
| Time since smoking onset, mean (SD) | 5.9 (3.4) | 5.7 (3.4) | 6.1 (3.4) | .080 |
| Activity space characteristics | ||||
| Mean tobacco retailer countsb, % | ||||
| Less than 4 (low) | 28.7 | 30.0 | 27.4 | .170 |
| 4–7.8 (intermediate) | 35.7 | 37.4 | 34.1 | |
| 8 or more (high) | 35.6 | 32.6 | 38.5 | |
| Mean distance to closest tobacco retailerc, % | ||||
| More than 350 m (furthest) | 23.7 | 25.6 | 21.4 | .237 |
| 150–350 m (intermediate) | 44.3 | 43.6 | 45.0 | |
| Less than 150 m (closest) | 32.0 | 30.4 | 33.6 | |
| Mean relative deprivation, %* | ||||
| Low | 16.5 | 19.6 | 13.5 | .040 |
| Medium–low | 38.4 | 39.0 | 37.9 | |
| Medium–high | 37.0 | 33.5 | 40.5 | |
| High | 8.0 | 7.9 | 8.1 | |
| Residential neighborhood characteristics | ||||
| Tobacco retailer countsd, %* | ||||
| Less than 2 (low) | 29.3 | 33.0 | 25.7 | .006 |
| 2–5 (intermediate) | 30.7 | 31.9 | 29.6 | |
| 6 or more (high) | 40.0 | 35.0 | 44.8 | |
| Distance to closest tobacco retailere, % | ||||
| More than 350 m (furthest) | 30.8 | 33.3 | 28.5 | .289 |
| 150–350 m (intermediate) | 36.9 | 35.5 | 38.3 | |
| Less than 150 m (closest) | 32.3 | 31.3 | 33.2 | |
| Relative deprivation, % | ||||
| Low | 19.7 | 21.6 | 17.8 | .357 |
| Medium to low | 27.5 | 26.9 | 28.1 | |
| Medium to high | 32.5 | 30.4 | 34.5 | |
| High | 20.4 | 21.2 | 19.7 | |
SD = standard deviation.
aAmong 912 participants with data on occupation.
bMedian (interquartile range) for mean tobacco retailer counts in the activity space are 6.0 (6.5) for the complete sample, 5.8 (6.0) for former smokers, and 6.4 (6.8) for current smokers.
cMedian (interquartile range) for mean distance to closest tobacco retailer in the activity space are 208.9 (211.7) for the complete sample, 226.0 (228.6) for former smokers, and 197.0 (196.0) for current smokers.
dMedian (interquartile range) for residential tobacco retailer counts are 4.0 (7.0) for the complete sample, 3.5 (8.0) for former smokers, and 5 (8) for current smokers.
eMedian (interquartile range) for distance between home and closest tobacco retailer are 212.7 (281.7) for the complete sample, 297.6 (228.6) for former smokers, and 204.2 (274.2) for current smokers.
*Difference between former and current smokers at p = .05 significance level.