Electronic cigarettes use and perception amongst medical students: a cross sectional survey from Sindh, Pakistan.

This was also suggested by a multivariable logistic regression analysis demonstrating significantly higher odds of e-cigarette use among those who reported use of conventional cigarettes [OR: 10.6, 95% CI 3.6–30.8, p < 0.001] as well as use of smokeless tobacco products [OR: 7.9, 95% CI 2.7–23.4, p < 0.001], whereas the association was only marginally significant for Shisha use [OR: 3.05, 95% CI 0.9–9.6, p = 0.05] (Table 3 ).

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