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Instituto Nacional de Salud Pública

2021, Number 4

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salud publica mex 2021; 63 (4)

Monthly prevalence of generalized anxiety disorder during the Covid-19 pandemic in Mexico

Gaitán-Rossi P, Pérez-Hernández V, Vilar-Compte M, Teruel-Belismelis G

Language: Spanish
References: 35
Page: 478-485
PDF size: 315.42 Kb.


ABSTRACT

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.


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