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. 2021 Apr 20;18(8):4346. doi: 10.3390/ijerph18084346

Table 2.

Factors associated with favorable and unfavorable changes in tobacco smoking, binge drinking and cannabis use among university students during the COVID-19 lockdown (n = 3671) (Logistic regression).

Tobacco Smoking Binge Drinking Cannabis Use
Favorable Change
AOR (95% CI)
Unfavorable Change
AOR (95% CI)
Favorable Change
AOR (95% CI)
Unfavorable Change
AOR (95% CI)
Favorable Change
AOR (95% CI)
Unfavorable Change
AOR (95% CI)
Female Ref Ref Ref Ref
Male 1.52 (1.29–1.79) 2.24 (1.51–3.33) 3.10 (2.11–4.53) 3.35 (1.65–6.78)
Curriculum
Healthcare 1.29 (1.02–1.64) 0.71 (0.39–1.28) 0.80 (0.43–1.46) 0.46 (0.16–1.30)
Humanities 0.95 (0.72–1.25) 0.72 (0.37–1.40) 0.98 (0.50–1.93) 0.75 (0.24–2.31)
Law Ref Ref
Literature 1.06 (0.78–1.42) 1.18 (0.62–2.27) 1.85 (0.98–3.51) 1.17 (0.40–3.42)
Sciences 0.82 (0.63–1.08) 0.72 (0.38–1.36) 0.69 (0.35–1.36) 0.53 (0.17–1.64)
Academic year of study
1 Ref Ref Ref Ref
2 and 3 1.20 (0.86–1.69) 1.47 (0.81–2.65) 1.64 (1.36–1.97) 1.25 (0.78–1.99)
4 and 5 1.13 (0.73–1.75) 0.64 (0.27–1.52) 1.81 (1.44–2.29) 1.16 (0.65–2.09)
6 and more 0.69 (0.28–1.67) 0.60 (0.13–2.62) 1.51 (1.04–2.20) 0.17 (0.02–1.28)
Living with parents
Before and during C19 Ref Ref Ref Ref Ref
Not before and not during C19 0.78 (0.52–1.19) 1.78 (0.98–3.24) 1.33 (1.08–1.63) 2.30 (1.39–3.80) 1.21 (0.74–1.99) 2.63 (1.08–6.42)
Before but not during C19 0.42 (0.10–1.76) 2.57 (0.84–7.88) 1.13 (0.67–1.88) 1.05 (0.24–4.54) 1.04 (0.24–4.45) 9.95 (2.78–35.77)
Not before but during C19 1.36 (0.98–1.89) 0.79 (0.41–1.51) 1.88 (1.57–2.26) 1.36 (0.81–2.27) 1.37 (0.87–2.18) 0.82 (0.27–2.47)
Less contact
With family 0.83 (0.69–1.02) 0.98 (0.57–1.71)
With friends 1.15 (0.92–1.45) 0.60 (0.35–1.02)
CESD-8 scale 1.01 (0.98–1.04) 1.07 (1.02–1.12) 0.99 (0.98–1.01) 1.04 (1.00–1.08) 1.05 (1.01–1.09) 1.10 (1.03–1.17)
COVID-19
Personally infected 0.82 (0.49–1.36) 1.69 (0.90–3.19)
Knowing others infected 1.26 (1.09–1.47) 1.94 (1.31–2.87)
Worried about becoming severely ill 0.96 (0.94–0.98) 0.95 (0.90–1.02)
Worried about a relative becoming severely ill
Worried about insufficient medical supplies
University
Increased academic workload 0.76 (0.53–1.10) 0.92 (0.53–1.62) 1.13 (0.94–1.36) 0.87 (0.55–1.37)
Worried about not completing the academic year 1.00 (0.67–1.48) 2.74 (1.14–6.58) 1.00 (0.82–1.22) 1.10 (0.67–1.83)
Stressed with changes in teaching methods 1.14 (0.76–1.71) 1.03 (0.53–2.01)

C19: COVD19 lockdown CESD-8: Center for Epidemiologic Studies Depression; Interaction gender and variables tested: p > 0.05.