Table 1:
Sample characteristics, youth aged 16–19 years, by country and survey year, weighted %(n)
| CANADA | ENGLAND | US | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 2017 (n=4038) | 2018 (n=3845) | 2019 (n=4135) | 2017 (n=3995) | 2018 (n=3874) | 2019 (n=3493) | 2017 (n=4095) | 2018 (n=4034) | 2019 (n=3981) | |
| Age (mean; SD) | 17.6; 1.1 | 17.5; 1.1 | 17.5; 1.1 | 17.5; 1.0 | 17.6; 1.0 | 17.5; 0.9 | 17.5; 1.1 | 17.5; 1.1 | 17.5; 1.1 |
| Sexa | |||||||||
| Male | 51.4 (2077) | 51.5 (1979) | 51.3 (2121) | 51.3 (2050) | 51.3 (1989) | 51.3 (1793) | 51.1 (2094) | 51.1 (2061) | 51.1 (2034) |
| Female | 48.6 (1961) | 48.5 (1866) | 48.7 (2014) | 48.7 (1945) | 48.7 (1885) | 48.7 (1700) | 48.9 (2001) | 48.9 (1973) | 48.9 (1947) |
| Race/ethnicityb | |||||||||
| White (only) | 58.4 (2358) | 47.0 (1807) | 53.8 (2225) | 79.4 (3172) | 77.0 (2985) | 76.0 (2654) | 73.4 (3006) | 73.3 (2959) | 73.6(2931) |
| Mixed/Other/Not stated | 41.6 (1680) | 53.0 (2038) | 46.2 (1910) | 20.6 (823) | 23.0 (889) | 24.0 (839) | 26.6 (1089) | 26.7 (1075) | 26.4(1050) |
| E-cigarette use | |||||||||
| Ever | 29.3 (1182) | 33.2 (1275) | 40.6 (1680) | 33.7 (1348) | 33.1 (1283) | 36.1 (1260) | 31.3 (1283) | 33.1 (1336) | 43.6 (1734) |
| In the past 30 days | 8.4 (340) | 12.1 (463) | 17.8 (738) | 8.7 (347) | 9.0 (351) | 12.6 (439) | 11.1 (454) | 15.7 (635) | 18.5 (736) |
| ≥20 days in past 30 days | 1.8 (74) | 2.4 (92) | 5.7 (236) | 1.5 (59) | 2.0 (76) | 2.7 (94) | 2.2 (89) | 3.8 (154) | 6.7 (267) |
| Cigarette smoking | |||||||||
| Ever | 31.9 (1288) | 31.0 (1193) | 31.1 (1287) | 40.4 (1615) | 40.1 (1554) | 38.2 (1334) | 32.3 (1322) | 32.4 (1306) | 33.5 (1334) |
| In the past 30 days | 10.7 (431) | 10.0 (383) | 9.3 (384) | 15.6 (622) | 16.7 (645) | 14.8 (519) | 11.0 (451) | 11.7 (470) | 7.9 (315) |
| ≥20 days in past 30 days | 4.3 (173) | 4.1 (158) | 2.9 (118) | 4.3 (173) | 5.8 (226) | 4.7 (165) | 3.7 (151) | 3.9 (156) | 2.5 (100) |
| Dual use (e-cigarettes and cigarette smoking) | |||||||||
| Ever | 20.0 (809) | 20.2 (776) | 23.8 (983) | 26.6 (1064) | 26.0 (1006) | 26.4 (924) | 22.4 (919) | 22.4 (902) | 26.7 (1062) |
| In the past 30 days | 4.0 (162) | 4.7 (181) | 5.5 (228) | 5.0 (201) | 5.5 (214) | 6.5 (226) | 6.0 (245) | 6.5 (263) | 5.1 (204) |
| ≥20 days in past 30 days | 0.5 (20) | 0.5 (18) | 0.6 (24) | 0.3 (13) | 0.7 (28) | 0.7 (26) | 0.4 (15) | 0.6 (23) | 0.5 (21) |
a
Determined by response to “sex at birth” survey item; where sex at birth was missing, inferred from gender if “man” or “woman” selected
b
Determined by response(s) to a survey item with multiple categories, categorized into those who specified only White/European, or any other response; wording of the Canadian source question changed slightly, from response option “White” in 2017 to “European” in 2018 to “White or European” in 2019