A Population-Based Cross-Sectional Study of Anxiety and Depression Associated with the COVID-19 Pandemic in Nigeria

The COVID-19 pandemic has created mental health challenges among the public. The study objectives were to determine the prevalence of anxiety, depression and associated factors among the general public in Nigeria during the COVID-19 pandemic. The cross-sectional study was conducted between May 2020 and June 2020 using an online questionnaire that captured sociodemographic data, generalized anxiety disorder (GAD-7), depression (PHQ-9), lifestyle practices, self-rated health, and exposure to COVID-19 information through social media. Data were analysed using Statistical Package for Social Science with associations tested at 95% confidence interval. Appropriate institutional ethical board approval was obtained, and informed consent obtained from all participants. 543 adults participated, 101 (18.6%) and 131 (24.1%) respondents were classified as having depressive and anxiety disorders respectively. Females (χ2=11.06, p < 0.01), alcohol use (OR 5.50, p < 0.01, 95% CI 2.18-13.87) and poor self-rated health (OR 2.97, p=0.04, 95% CI 1.08-8.22) were significantly associated with GAD. Alcohol consumption (OR 4.27, p < 0.01, 95% CI 1.56-12.04), currently being on medication (OR 2.96, p < 0.01, 95% CI 1.31-6.70) and poor self-rated health (OR 4.21 p < 0.01, 95% CI 1.73-10.23) were significantly associated with depression. Increasing frequency of information on Covid-19 through social media was significantly associated with decreased anxiety and depression (χ2=7.95, p=0.02). A considerable proportion of respondents experienced anxiety and depression, especially persons with unhealthy lifestyles and poor health. Interventions to improve mental health should target these at-risk groups.