E-cigarette use by Ontario public elementary school and secondary school students: Has the use among sociodemographic groups changed from 2017 to 2019?

For the SS students, several of the same variables were significant in 2017: grade (p = 0.041), school performance (p < 0.001), living arrangements (OR = 1.50, 95% CI = 1.01, 2.24, p = 0.046) and smoking (OR = 8.17, 95% CI = 5.31, 12.55, p < 0.001), whereas sex was marginally significant (OR = 0.71, 95% CI = 0.50, 1.01, p = 0.55).

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English as the primary language at home (OR = 2.00, 95% CI = 0.99, 4.02, p = 0.052) and living arrangements (OR = 1.90, 95% CI = 0.93, 3.86, p = 0.077) were close to significance.

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The difference for sex (change in OR = 0.41, 95% CI = -0.05, 0.86, p = 0.65) and “Canada all my life” (change in OR = 0.77, 95% CI = -0.14, 1.80, p = 0.074) approached significance.

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