Table 1

Descriptive statistics for 1994 young adults from the ISIS study (Montreal, Canada, 2011–2012), full sample and by smoking status

Full sample (n=1994)Smokers 22.8% (n=454)Non-smokers 77.2% (n=1540)
Individual-level characteristics
Women, % (n)*56.9 (1135)52.4 (238)58.2 (897)
Age, mean (SD)*21.5 (2.3)21.6 (2.3)21.4 (2.3)
Educational attainment, % (n)*
 Secondary school or less16.3 (326)26.4 (120)13.8 (212)
 CEGEP/trade school39.5 (787)39.4 (179)39.1 (602)
 University44.2 (881)34.1 (155)47.1 (726)
Occupational status, % (n)*
 Not in education and not employed7.5 (150)9.9 (45)6.8 (105)
 Student (and employed or not)70.5 (1405)64.1 (291)72.3 (1114)
 Employed only22.0 (439)26.9 (118)20.8 (321)
Daily smoker, % (n)43.0 (195)NA
Occasional smoker, % (n)57.0 (259)NA
Contextual characteristics—residential neighbourhood
Tobacco retailer counts, % (n)*
 0–1 (low)33.7 (671)25.3 (115)36.1 (556)
 2–5 (medium)31.3 (624)29.5 (134)31.8 (490)
 6+ (high)35.1 (699)45.2 (205)32.1 (494)
Tobacco retailer proximity, % (n)*
 >350 m (low)33.7 (671)28.2(128)35.3 (543)
 150–350 m (medium)35.5 (708)38.3 (174)34.7 (534)
 <150 m (high)30.8 (615)33.5 (152)30.1 (463)
Material deprivation level, % (n)
 Least20.0 (399)17.8 (81)20.6 (318)
 Medium–low28.0 (558)28.2 (128)27.9 (430)
 Medium–high30.6 (610)34.6 (157)29.4 (453)
 Highest21.4 (427)19.4 (88)22.0 (339)
Contextual characteristics—activity space
Mean tobacco retailer counts, % (n)*
 0–4 (low)32.1 (641)26.4 (120)33.8 (521)
 4–7.9 (medium)33.9 (676)34.8 (158)33.6 (518)
 8+(high)34.0 (677)38.8 (176)32.5 (501)
Mean tobacco retailer proximity, % (n)*
 >350 m (low)27.5 (548)20.9 (95)29.4 (453)
 150–350 m (medium)44.0 (878)45.2 (205)43.7 (673)
 <150 m (high)28.5 (568)33.9 (154)26.9 (414)
Mean deprivation level, % (n)*
 Least16.0 (319)13.4 (61)16.8 (258)
 Medium–low39.8 (793)38.3 (174)40.2 (619)
 Medium–high35.2 (702)40.7 (185)33.6 (517)
 Highest9.0 (180)7.5 (34)9.5 (146)
  • * Indicative of a statistically significant difference between smokers and non-smokers (p<0.05).

  • ISIS, Interdisciplinary Study on Inequalities in Smoking.