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Salud Pública de México
Print version ISSN 0036-3634
Abstract
GAITAN-ROSSI, Pablo; PEREZ-HERNANDEZ, Víctor; VILAR-COMPTE, Mireya and TERUEL-BELISMELIS, Graciela. Monthly prevalence of generalized anxiety disorder during the Covid-19 pandemic in Mexico. Salud pública Méx [online]. 2021, vol.63, n.4, pp.478-485. Epub Feb 27, 2023. ISSN 0036-3634. https://doi.org/10.21149/12257.
Objective:
Estimate the prevalence of generalized anxiety disorder (GAD) from April to June 2020.
Materials and methods:
Repeated cross-sections design based in the Encovid-19, a series of monthly mobile surveys with representative samples of Mexico (N= 833-1 674). The questionnaire includes the GAD-2 scale, and, in July, the GAD-7 scale was added; we examined its internal validity with confirmatory factor analysis and its concurrent validity with sociodemographic variables. Using GAD-7 as criterion, we analyzed the predictive validity of the GAD-2. We estimated the monthly prevalence with the GAD-2.
Results:
The GAD-7 and the GAD-2 are reliable and valid. The GAD-2 has a sensitivity of 0.87 and a specificity of 0.90. The monthly prevalence remains high and stable, between 30.7 and 32.6%. GAD concentrated in women, unemployed and persons with low socioeconomic status.
Conclusions:
GAD is a public health problem that worsened during the Covid-19 pandemic.
Keywords : anxiety; GAD; Covid-19; validity; monitoring.
