Relationship between clinical and therapeutic variables and health-related quality of life in patients with hypertension.: MINICHAL Study

BACKGROUND AND OBJECTIVE: Our objective was to evaluate, through the health related quality of life (HRQoL) questionnaire MINICHAL, the influence of socio-demographic, clinical and therapeutic variables on health related quality of life of hypertensive patients. PATIENTS AND METHOD: An observational, prospective and multi-center study was carried out in hypertensive patients who were either starting or undergoing a modification of anti hypertensive treatment. A total of three visits was done: a baseline visit and two follow-up visits at one and six months. At all three visits, several socio-demographic, clinical and therapeutic variables were recorded and HRQoL was measured using the MINICHAL questionnaire, the Spanish version of the "Psychological General Well-Being Index" and a single question about the change in general health status. The objective was to evaluate the impact of these variables on HRQoL. RESULTS: 736 patients with hypertension were evaluated. In the multivariate analysis, gender, number of concomitant diseases, degree of hypertension, organ damage and educational level were all variables displaying a relation with HRQoL. After 6 months of treatment intensification, an improvement of HRQoL was observed. Moreover, a positive correlation was observed between the degree of reduction of blood pressure (BP) and heart rate and HRQoL improvement, especially in the "State of mind" dimension. CONCLUSIONS: In hypertension, a better BP control has a positive influence on HRQoL. As several clinical variables are negatively correlated with HRQoL, specific interventions are needed to correct modifiable factors.