Psychometric evaluation of the Hospital Anxiety and Depression Scale in Mexican adults with ischemic and hypertensive cardiomyopathy.

BACKGROUND

Depression and anxiety are frequent comorbid conditions in cardiovascular diseases (CVDs); they are related to poor prognosis and higher mortality risk. Health providers need a clinical tool to identify these psychiatric conditions. The 14-item hospital anxiety and depression scale (HADS) is a screening tool used in patients with different medical conditions.

OBJECTIVE

The aim of this study was to evaluate the psychometric properties of the HADS Mexican Spanish version in a broad sample of Mexican patients with CVDs.

MATERIALS AND METHODS

A total of 953 individuals between 18 and 75 years old with ischemic or hypertensive cardiomyopathy were screened with the HADS Mexican Spanish version. Construct validity, internal consistency, and congruence coefficients of the scale were obtained.

RESULTS

The results showed two clear factors which correspond to the original two designated domains of the HADS, anxiety, and depression, with adequate reliability values (alpha > 0.80) and high congruence coefficients (> 0.90) when compared to the sample of other validation studies of the HADS.

CONCLUSIONS

The present study adds evidence of the validity and reliability of the HADS to assess the presence of both depression and anxiety in Mexican patients with CVD. Its central contribution is that it demonstrates its capacity to differentiate the presence and severity of depression and anxiety in this population.