Table 1: Prevalence of e-cigarette use by sociodemographic and smoking-related correlates among Canadian students in grades 6-12, based on the 2014/15 Canadian Student Tobacco, Alcohol and Drugs Survey*
Ever use of e-cigarettesPast 30-day use of e-cigarettes
Characteristicn% (95% CI)n% (95% CI)
Canada441 90017.7 (16.4-18.9)142 9005.7 (5.2-6.3)
Sex
    Female180 00014.7 (13.5-15.9)53 9004.4 (3.8-5.1)
    Male261 90020.4 (18.8-22.0)88 9007.0 (6.1-7.8)
Grade
    680002.5 (1.8-3.3)
    722 0006.3 (5.1-7.6)60001.7 (1.1-2.3)**
    844 30012.6 (10.6-14.6)14 6004.2 (3.0-5.3)
    965 80017.6 (15.1-20.0)21 3005.7 (4.4-7.0)
    1085 80022.8 (19.4-26.3)30 5008.1 (6.5-9.8)
    11109 80028.8 (26.2-31.4)37 7009.9 (8.2-11.7)
    12106 20029.7 (26.4-33.1)30 7008.7 (7.0-10.3)
    6-9140 10010.1 (8.9-11.2)44 0003.2 (2.5-3.8)
    10-12301 80027.1 (24.8-29.3)98 9008.9 (7.9-9.9)
Ethnicity
    White293 70019.6 (17.8-21.4)92 8006.2 (5.5-7.0)
    Black21 20018.2 (14.8-21.5)77006.6 (4.5-8.7)
    Asian†56 30010.2 (8.3-12.1)18 1003.3 (2.5-4.1)
    Aboriginal31 70030.4 (27.4-33.4)12 10011.7 (9.4-14.1)
    Latin American13 00022.2 (16.9-27.5)48008.1 (5.8-10.5)
    Other23 70015.9 (13.6-18.2)68004.6 (3.4-5.9)
Urban location of school
    Yes328 60016.4 (14.7-18.2)107 8005.4 (4.7-6.2)
    No113 40022.4 (18.8-26.1)35 0007.0 (5.5-8.4)
Socioeconomic level of school neighbourhood
    Low151 20020.2 (17.0-23.3)49 7006.7 (5.0-8.3)
    Middle131 10015.2 (12.4-18.0)38 4004.5 (3.4-5.5)
    High159 50018.0 (15.0-20.9)54 7006.2 (5.2-7.1)
Province‡
    Newfoundland and Labrador890026.3 (23.6-29.1)450013.3 (9.9-16.7)
    Prince Edward Island240021.7 (19.5-23.9)11009.8 (8.3-11.3)
    Nova Scotia13 00020.0 (18.3-21.7)53008.2 (6.7-9.7)
    Quebec112 80024.1 (20.8-27.4)31 8006.8 (4.8-8.9)
    Ontario155 80014.1 (11.9-16.3)46 8004.3 (3.4-5.1)
    Manitoba17 70018.5 (16.2-20.8)88009.2 (6.8-11.7)
    Saskatchewan15 80020.3 (16.0-24.5)63008.2 (6.2-10.1)
    Alberta42 30015.1 (12.6-17.5)13 3004.8 (3.4-6.1)
    British Columbia59 90019.2 (16.2-22.2)22 0007.1 (5.8-8.4)
Smoking status
    Current smoker64 40075.7 (70.7-80.8)38 90046.6 (39.3-53.9)
    Former smoker880077.6 (68.7-86.5)240020.4 (11.8-28.9)**
    Experimental smoker194 90057.3 (55.1-59.6)65 50019.4 (17.7-21.2)
    Never tried smoking173 8008.4 (7.7-9.2)36 1001.8 (1.5-2.0)
Ever use of e-cigarettesPast 30-day use of e-cigarettes
Characteristicn% (95% CI)n% (95% CI)
Tried other tobacco products
    Little cigars or cigarillos219 30069.0 (66.4-71.6)90 50028.9 (26.2-31.7)
    Water pipe170 20067.5 (63.7-71.4)73 30029.6 (26.6-32.7)
    Smokeless90 50073.8 (70.5-77.2)43 50036.4 (32.8-40.1)
    Any tobacco product other than cigarettes§290 00061.7 (59.3-64.1)110 70023.8 (21.7-25.9)
Perceived ease of access to e-cigarettes
    Very or fairly easy374 50032.9 (30.9-34.9)122 60010.8 (9.8-11.9)
    Very or fairly difficult41 9005.2 (4.6-5.9)97001.2 (1.0-1.5)
    Don't know16 0003.3 (2.5-4.0)58001.2 (0.8-1.6)
Perceived risk of harm from using e-cigarettes on a regular basis
    No risk115 20040.5 (37.4-43.5)45 20015.9 (14.1-17.7)
    Slight risk142 80031.3 (29.0-33.5)43 3009.6 (8.3-10.8)
    Moderate risk104 40015.4 (13.8-17.0)28 0004.1 (3.5-4.8)
    Great risk41 5006.7 (5.9-7.6)11 9001.9 (1.5-2.4)
    Don't know24 2006.3 (5.1-7.5)86002.2 (1.6-2.9)

Note: CI = confidence interval.

*Data are presented as weighted number (n) and weighted percentage (%, with 95% CI). The weighted n values are rounded to the nearest 100.

†"Asian" combines students who identified as West Asian/Arab, South Asian or East/Southeast Asian.

‡The 2014/15 Canadian Student Tobacco, Alcohol and Drugs Survey does not include a generalizable sample of students from the province of New Brunswick. As a result, data for New Brunswick students cannot be used to produce provincial estimates.

§Students who reported using little cigars or cigarillos, cigars, roll-your-own cigarettes, bidis, smokeless tobacco, water pipe or blunt wraps.

¶Data suppressed because of unacceptable data quality (due to high variability or low numbers).

**Because of moderate sampling variability, these data should be interpreted with caution.