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Table 4 Adjusted odds ratios from the model with time and latent class membership interaction

From: Self-reported mental health during the COVID-19 pandemic and its association with alcohol and cannabis use: a latent class analysis

  Cannabis use past week Heavy Episodic Drinking Increase in cannabis use Increase in alcohol use
Total sample
  High-symptom class 2.34*** (1.62–3.38) 2.01*** (1.46–2.76) 3.88*** (2.45–6.16) 3.39*** (2.42–4.75)
  High-symptom class*wave 1 0.95 (0.55–1.65) 1.13 (0.72–1.77) 0.61 (0.30–1.22) 0.61** (0.38–0.97)
  High-symptom class*wave 2 0.82 (0.47–1.42) 0.75 (0.48–1.19) 1.03 (0.51–2.04) 0.78 (0.49–1.25)
  High-symptom class*wave 3 0.93 (0.53–1.61) 0.78 (0.49–1.23) 0.75 (0.37–1.53) 0.66 (0.41–1.06)
  High-symptom class*wave 4 0.95 (0.55–1.65) 0.83 (0.53–1.31) 0.89 (0.44–1.81) 0.78 (0.48–1.26)
  High-symptom class*wave 5 1.24 (0.71–2.15) 0.66 (0.42–1.05) 1.29 (0.61–2.74) 0.44*** (0.26–0.72)
  F-test chi2 statistics 2.11 6.96 4.48 12.19
 F-test p_value 0.833 0.223 0.483 0.0323
  1. Odds ratios are adjusted for sex, age, marital status, education, ethnicity, living area, household income, the presence of children, and other people in the household (see the Additional file 2 for the full estimation table and the model specification)
  2. Legend: 95% confidence level in parentheses. Significance level *** p < 0.01, ** p < 0.05