Risk factors for severity and mortality in adults testing positive for COVID-19 in the VI Health Area of Albacete.

This was a single-centre retrospective study in Albacete, so the pattern may not apply to other populations or later pandemic periods. The authors note that cohort designs can introduce selection and data-collection errors, and only a limited set of factors was measured at the start. BMI data were missing in many clinical records, so the paper could not reliably assess weight as a risk factor. The data came from an early period when COVID-19 often had a poor course; later cases may have had different risk factors or severity. The paper reports associations between recorded factors and poor outcome, not causal effects or individual patient predictions.

The authors declared no conflicts of interest. No funding source is stated in the supplied text.

Do not conclude that age, hypertension or diabetes caused severe COVID-19 or can be used alone to predict an individual patient's course. This was a retrospective single-centre cohort with missing records, and the authors note selection and data-collection errors can affect the findings.