Objectives: To describe the prevalence and distribution of anxiety and depression among Mexican population, and to examine its association with internet addiction during the COVID-19 outbreak.
Design:A web-based cross-sectional study.
Setting: General population in México.Participants: 561 subjects were recruited (71% female, mean age 30.7 ± 10.6 years).
Interventions: An online survey to assess personal attitudes and perceptions towards
COVID-19, sleep-disorders related, the Mexican version of the Hospital Anxiety andDepression Scale (HADS) and the Internet Addiction Test (IAT) was applied.Primary and secondary outcome measures: Prevalence of anxiety, depression, internet addiction and sleep disorders and associated factors. Also, prevalence for anxiety and depression were compared to an historic control group.
Results:During the initial phase of the COVID-19 pandemic the prevalence for anxiety and depression was 50% (95% CI, 45.6% to 54.1%) and 27.6%, (95% CI 23.8% to 31.4%), respectively. We found a 51% (33% to 50%) increase in anxiety and up to 86% increase in depression during the initial weeks of the lock-down compared to the control group.According to the IAT questionnaire, 62.7% (95% CI 58.6% to 68.8%) of our population had some degree of internet addiction. Odds ratio for development of anxiety symptoms was 2.02 (95% CI1.56-2.1, p=0.0001) and for depression was 2.15 (95% CI 1.59-2.9, p=0.0001). In the multivariate analysis, younger age (p=0.006), sleep problems (p=0.000), and internet addiction ( p=0.000) were associated with anxiety and depression.