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. 2023 Apr 20;18(4):e0284283. doi: 10.1371/journal.pone.0284283

Table 4. Associations between COVID-19 related health behaviours and increased weight.

Weight gain = Yes Weight gain = No Multiple and stepwise logistic regression analysisa P *
Have consumed substantially more alcohol than usual.
Yes 120 (11.5%) 141 (10.0%) aOR1 (95%CI) 1.18 (0.87–1.58)
No 923 (88.5%) 1270 (90.0%) .29
Have smoked considerably more cigarettes than usual.
Yes 82 (7.8%) 115 (8.2%) aOR1 (95%CI) 1.01 (0.70–1.47) .96
No 964 (92.2%) 1294 (91.8%) aOR2 (95%CI) 0.72 (0.51–1.01) .06
Exercised less than I did before the pandemic.
Yes 442 (42.3%) 430 (30.6%) aOR1 (95%CI) 1.65 (1.37–1.97) < .001
No 602 (57.7%) 977 (69.4%) aOR2 (95%CI) 1.34 (1.10–1.62) .004
Ate more unhealthy food than I did before the pandemic (such as fried food, coke, etc).
Yes 409 (39.1%) 288 (20.5%) aOR1 (95%CI) 2.46 (2.02–2.99) < .001
No 636 (60.9%) 1120 (79.5%) aOR2 (95%CI) 2.39 (1.93–2.95) < .001
Postponed vaccination for myself or my child.
Yes 138 (13.3%) 163 (11.6%) aOR1 (95%CI) 1.16 (0.88–1.52) .31
No 902 (86.7%) 1246 (88.4%)
Frequently washed my hands with soap and water for at least 20 seconds.
Yes 810 (76.8%) 1047 (74.0%) aOR1 (95%CI) 1.12 (0.91–1.37) .28
No 245 (23.2%) 367 (26.0%)
Avoided touching my eyes, nose and mouth with unwashed hands.
Yes 767 (72.7%) 983 (69.6%) aOR1 (95%CI) 1.16 (0.95–1.41) .14
No 288 (27.3%) 430 (30.4%)
Used disinfectants/sanitizer to clean hands when soap and water were not available.
Yes 838 (79.5%) 1074 (76.1%) aOR1 (95%CI) 1.21 (0.98–1.50) .07
No 216 (20.5%) 337 (23.9%)
Avoided a social event I wanted to attend.
Yes 703 (66.8%) 913 (64.7%) aOR1 (95%CI) 1.04 (0.87–1.26) .65
No 349 (33.2%) 498 (35.3%)
Stayed at home from work/school.
Yes 632 (60.1%) 832 (59.0%) aOR1 (95%CI) 1.05 (0.88–1.26) .58
No 420 (39.9%) 579 (41.0%)
Wore a mask in public.
Yes 969 (91.8%) 1273 (90.2%) aOR1 (95%CI) 1.11 (0.81–1.53) .51
No 87 (8.2%) 139 (9.8%)
Ensured physical distancing in public.
Yes 896 (85.3%) 1187 (84.2%) aOR1 (95%CI) 1.06 (0.82–1.35) .67
No 155 (14.7%) 223 (15.8%)
Disinfected surfaces.
Yes 749 (70.9%) 957 (67.7%) aOR1 (95%CI) 1.11 (0.92–1.34) .29
No 307 (29.1%) 456 (32.3%)

aAdjusted for all socio-demographic factors, presence of chronic physical conditions and mental illnesses or conditions

aOR1 Adjusted odd ratios derived from multiple logistic regression

aOR2 Adjusted odd ratios derived from stepwise logistic regression

*Significant at p < 0.05