Health-related quality of life of subjects with known and unknown hypertension: results from the population-based Hortega study.

Objective: Analyze the impact of known and unknown hypertension on health-related quality of life (HRQOL).

Design And Setting: A descriptive cross-sectional study in the health coverage area of the Rio Hortega University Hospital, in north-western Spain, on a simple random sample of 33022 individuals.

Participants: Following a multiphase sampling, a final sample of 466 people, representative of the general population, was analyzed.