Vulnerable populations may be more vulnerable to mental health problems posed by the coronavirus disease 2019 (COVID-19) pandemic. A systematic review was performed to compare the mental health impact of COVID-19 between vulnerable and non-vulnerable groups. Five electronic databases were searched for observational studies reporting the psychological outcomes of both vulnerable populations and healthy controls during the COVID-19 era. The primary outcomes are the severity of depression and anxiety, and secondary outcomes include other aspects of mental health such as stress or sleep disturbance. Meta-analysis was performed for the severity of mental health symptoms, and the results were presented as standardized mean difference and 95% confidence intervals. A total of 25 studies were included. According to the findings, the elderly generally experienced significantly lower levels of psychological symptoms including depression, anxiety, and perceived stress. Pregnant women, patients with chronic diseases, and patients with pre-existing severe mental disorders showed mixed results according to each mental health outcome. The results indicate that vulnerable groups have been affected differently in the COVID-19 era. Though the insufficient number and heterogeneity of included studies leave the results inconclusive, our findings may contribute to identifying priorities of mental health needs among various vulnerable populations and allocating health resources with efficiency.
【저자키워드】 COVID-19, coronavirus, pandemic, mental health, vulnerability, 【초록키워드】 coronavirus disease, Perceived stress, Anxiety, Depression, Stress, severity, systematic review, outcome, database, Symptoms, heterogeneity, observational study, Population, Mental disorder, Health, Patient, women, group, resource, Efficiency, vulnerable population, Chronic diseases, Sleep disturbance, Psychological outcome, Confidence intervals, Primary outcome, standardized mean difference, healthy control, secondary outcome, significantly lower, Inconclusive, psychological symptom, affected, include, was performed, searched, contribute, groups, mental health problem, 【제목키워드】 review, Impact,