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Table 2 Results of factors associated with handwashing a

From: Association between years with incidence of communicable diseases focused on COVID-19 and hand hygiene among adults in South Korea: a cross-sectional study

Variables Handwashing
OR 95% CI
Year a
 2013 1.00    
 2015 1.10 (1.08 1.13)
 2017 1.10 (1.08 1.13)
 2019 1.17 (1.14 1.20)
 2020 3.21 (3.14 3.29)
Sex
 Men 1.00    
 Women 1.93 (1.90 1.96)
Age
 19–29 1.00    
 30–39 1.24 (1.21 1.27)
 40–49 1.07 (1.04 1.09)
 50–59 1.02 (0.99 1.04)
 60–69 1.09 (1.06 1.12)
 70- 0.78 (0.76 0.80)
Marital status
 Living with spouse 1.20 (1.18 1.21)
 Living without spouse 1.00    
Region
 Urban area 1.23 (1.21 1.24)
 Rural area 1.00    
Household income
 High 1.05 (1.03 1.07)
 Mid 1.04 (1.02 1.05)
 Low 1.00    
Occupational categoriesa
 White collar 1.17 (1.15 1.19)
 Pink collar 1.09 (1.07 1.11)
 Blue collar 0.91 (0.89 0.92)
 Inoccupation 1.00    
Educational level
 Middle shool or less 1.00    
 High school 1.50 (1.47 1.53)
 College or over 1.99 (1.95 2.03)
Perceived stress
 Much 1.00    
 Less 0.94 (0.93 0.96)
Current drinking
 Yes 1.00    
 No 1.12 (1.10 1.13)
Current smoking
 Yes 1.00    
 No 1.12 (1.10 1.14)
Unmet medical need
 No 1.21 (1.18 1.23)
 Yes 1.00    
Influenza vaccination
 Yes 1.31 (1.29 1.33)
 No 1.00    
Self-perceived health status
 Bad 1.00    
 Normal 1.21 (1.19 1.23)
 Good 1.49 (1.46 1.52)
  1. a Table 2 shows that adults who were washing hands always had gradually increased ORs by years referring to 2013. P for trend < 0.0001; odds ratio (OR); 95% confidence intervals (95% CI)