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. 2021 Oct 17;18(20):10905. doi: 10.3390/ijerph182010905

Table 2.

Symptoms of depression during the COVID-19 pandemic among Mexican smokers and dual users, 2020 (n = 2753).

Variables Depression a
No (<=3) Yes (>3) OR (95% C.I.) AOR (95% C.I.)
Wave COVID-19 % %
March 2020, COVID-19, (n = 1395) 80.1 19.9 ** Reference Reference
July 2020 COVID-19, (n = 1358) 73.1 27.0 1.48 (1.26, 1.74) ** 1.55 (1.31, 1.85) **
Gender
Female (n = 1321) 73.4 26.7 Reference Reference
Male (n = 1432) 79.7 20.3 0.71 (0.59, 0.86) ** 0.70 (0.58, 0.86) **
Age
18–29 (n = 834) 69.1 30.9 Reference Reference
30–39 (n = 850) 74.0 26.0 0.78 (0.62, 0.98) * 0.77 (0.60, 0.97) *
40–49 (n = 496) 83.9 16.1 0.44 (0.33, 0.60) ** 0.43 (0.32, 0.59) **
50+ (n = 573) 85.3 14.7 0.39 (0.29, 0.52) ** 0.37 (0.27, 0.51) **
Education
Middle school or less (n = 282) 73.1 27.0 Reference Reference
High school/technical studies/some college (n = 1544) 76.8 23.2 0.81 (0.60, 1.10) 0.88 (0.64, 1.21)
University or more (n = 927) 77.5 22.6 0.80 (0.58, 1.10) 0.93 (0.65, 1.33)
Household income
≤8000 (n = 635) 70.4 29.6 Reference Reference
8000–15,000 (n = 824) 76.5 23.5 0.74 (0.59, 0.94) * 0.80 (0.62, 1.03)
15,000–20,000 (n = 454) 78.9 21.2 0.66 (0.49, 0.88) * 0.73 (0.53, 1.00)
>20,000 (n = 704) 79.7 20.3 0.64 (0.49, 0.83) * 0.77 (0.56, 1.05)
missing (n = 136) 83.8 16.2 0.51 (0.31, 0.85) * 0.61 (0.36, 1.03)
Smoking frequency
Non-daily (n = 1401) 77.2 22.8 Reference Reference
Daily ≤ 5 CPD (n = 587) 78.2 21.8 0.95 (0.77, 1.22) 1.15 (0.91, 1.47)
Daily > 5 CPD (n = 695) 73.8 26.2 1.22 (0.98, 1.52) 1.66 (0.31, 2.11) **
Recent quit smoking attempt (Last 4 months)
No (n = 1573) 78.9 21.1 Reference Reference
Yes (n = 1110) 73.2 26.9 1.31 (1.10, 1.57) * 1.34 (1.10, 1.62) *

a Logistic regression models using a generalized estimating equation (GEE) approach to consider repeated measures, adjusted included all variables presented in the table. * p-value < 0.05, ** p-value < 0.001.