Association between Mental Health and Hand Hygiene Practices in Adults with Hypertension and Diabetes during the COVID-19 Pandemic: The 2020 Korea Community Health Survey

The preventive measures against the spread of COVID-19 have negatively impacted the mental health of people with chronic diseases. This cross-sectional study investigated the association between mental health and hand hygiene practices in patients with hypertension (HTN) and diabetes mellitus (DM) (n = 74,296) during the COVID-19 pandemic. Their anxiety about contracting COVID-19 and death, depression, and hand hygiene practices were compared to that of controls. Multiple logistic regression analysis showed that the patients had higher anxiety and depression and poorer hand hygiene practices than controls. Anxiety about contracting COVID-19 was associated with increased handwashing before eating (aOR = 1.59), after using the restroom (aOR = 1.61), after returning from outdoors (aOR = 1.69), for at least 30 s (aOR = 1.45), and with soap or hand sanitizer (aOR = 1.43). However, depression was associated with decreased handwashing before eating (aOR = 0.50), after using the restroom (aOR = 0.51), after returning from outdoors (aOR = 0.51), for at least 30 s (aOR = 0.73), and with soap or hand sanitizer (aOR = 0.63). Anxiety about death showed similar results. Psychological support for people with chronic diseases in crisis situations may promote self-care activities such as hand hygiene for infection control.