From: Perceptions and use of e-cigarettes among young adults in Hong Kong
 | Total sample (N = 1186) | Current cigarette smoking statusa | p | ||||
---|---|---|---|---|---|---|---|
Nonsmoker (n = 811) | Current smoker (n = 375) | ||||||
n | (%) | n | (%) | n | (%) | ||
Age, Mean (SD) | 24.18 | (5.14) | 24.41 | (5.29) | 23.68 | (4.78) | .024 |
Gender | .005 | ||||||
 Male | 537 | (45.3) | 345 | (42.5) | 192 | (51.2) |  |
 Female | 649 | (54.7) | 466 | (57.5) | 183 | (48.8) |  |
Education attainment | .074 | ||||||
 High school or less | 145 | (12.2) | 96 | (11.8) | 49 | (13.1) |  |
 Some college, no degree | 126 | (10.6) | 94 | (11.6) | 32 | (8.5) |  |
 Bachelor’s degree | 699 | (58.9) | 488 | (60.2) | 211 | (56.3) |  |
 Advanced degree | 205 | (17.3) | 125 | (15.4) | 80 | (21.3) |  |
 Unreported | 11 | (0.9) | 8 | (1.0) | 3 | (0.8) |  |
Place of birth | <.001 | ||||||
 Hong Kong | 889 | (75.0) | 640 | (78.9) | 249 | (66.4) |  |
 Mainland China | 186 | (15.7) | 119 | (14.7) | 67 | (17.9) |  |
 Others | 94 | (7.9) | 43 | (5.3) | 51 | (13.6) |  |
 Unreported | 17 | (1.4) | 9 | (1.1) | 8 | (2.1) |  |
Awareness of e-cigarettes | .051 | ||||||
 Yes | 1153 | (97.2) | 782 | (96.4) | 371 | (98.9) |  |
 No | 25 | (2.1) | 22 | (2.7) | 3 | (0.8) |  |
 Don’t know/not sure | 8 | (0.7) | 7 | (0.9) | 1 | (0.3) |  |
E-cigarette useb | <.001 | ||||||
 Never user | 983 | (82.9) | 755 | (93.1) | 228 | (60.8) |  |
 Former user | 134 | (11.3) | 42 | (5.2) | 92 | (24.5) |  |
 Current user | 57 | (4.8) | 11 | (1.4) | 46 | (12.3) |  |
 Undetermined | 12 | (1.0) | 3 | (0.4) | 9 | (2.4) |  |
Frequency of e-cigarette usec | .971 | ||||||
 1–2 days in past 30 days | 36 | (63.2) | 7 | (63.6) | 29 | (63.0) |  |
  ≥ 3 days in past 30 days | 21 | (36.8) | 4 | (36.4) | 17 | (37.0) |  |
Susceptibility to e-cigarette used | <.001 | ||||||
 Yes | 323 | (34.0) | 155 | (21.4) | 168 | (75.0) |  |
 No | 617 | (65.0) | 563 | (77.6) | 54 | (24.1) |  |
 Unreported | 10 | (1.1) | 8 | (1.1) | 2 | (0.9) |  |
E-cigarette perceptionse, mean (SD) | |||||||
 Perceived harm of e-cigarettes | 7.59 | (2.34) | 8.07 | (2.13) | 6.58 | (2.44) | <.001 |
 Perceived harm of e-cigarette aerosol | 6.93 | (2.93) | 7.62 | (2.67) | 5.55 | (2.94) | <.001 |
 Perceived addictiveness of e-cigarettes | 7.22 | (2.70) | 7.91 | (2.38) | 5.77 | (2.78) | <.001 |
 Perceived popularity of e-cigarette use | 2.62 | (2.87) | 2.34 | (2.91) | 3.23 | (2.74) | <.001 |