From: Perceptions and use of e-cigarettes among young adults in Hong Kong
 | Former e-cigarette usea | Current e-cigarette useb | ||||||
AORc [95% CI] | p | AORc [95% CI] | p | AORc [95% CI] | p | AORc [95% CI] | p | |
Among nonsmokersd | Among current cigarette smokerse | Among nonsmokersd | Among current cigarette smokerse | |||||
Perceived harm of e-cigarettes (n = 734 for nonsmokers and 338 for current cigarette smokers) | 0.70 [0.61, 0.81] | <.001 | 0.90 [0.80, 1.00] | .055 | 0.63 [0.49, 0.81] | <.001 | 0.80 [0.69, 0.92] | .002 |
Perceived harm of e-cigarette aerosol (n = 696 for nonsmokers and 334 for current cigarette smokers) | 0.73 [0.65, 0.82] | <.001 | 0.89 [0.81, 0.98] | .017 | 0.58 [0.45, 0.75] | <.001 | 0.88 [0.78, 0.99] | .041 |
Perceived addictiveness of e-cigarettes (n = 707 for nonsmokers and 328 for current cigarette smokers) | 0.69 [0.62, 0.78] | <.001 | 0.93 [0.84, 1.02] | .119 | 0.63 [0.51, 0.79] | <.001 | 0.84 [0.75, 0.95] | .005 |
 | Former e-cigarette usea | Current e-cigarette useb | ||||||
AORf [95% CI] | p | AORf [95% CI] | p | |||||
Perceived popularity of e-cigarette use (n = 1059) | 1.09 [1.02, 1.17] | .013 | 1.22 [1.11, 1.34] | <.001 |