, Volume 7, Issue 5, pp 193-198

Treated hypertensives with good medication compliance are still in a state of uncontrolled blood pressure in the Japanese elderly

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Abstract

Objectives

Blood pressure (BP) is poorly controlled in many countries. Poor compliance was suggested as the main cause for poor BP control. The purpose of this study was to examine the association between compliance and the control of both casual blood pressure (BP) and 24-hr ambulatory BP in a Japanese elderly population.

Methods

The study was a cross-sectional survey. Casual BP and 24-hr ambulatory BP were measured at home. Hypertension was defined as casual systolic BP (SBP)≧140 and/or diastolic BP (DBP)≧90 mmHg, or as treated hypertension. A compliance rate of greater than 80% by the pill count method was defined as good compliance.

Results

Of the 178 treated hypertensives, 82.6% showed good compliance. Between the treated hypertensives with good compliance and those with poor compliance, no significant difference was found in either casual BP or ambulatory BP. Of the treated hypertensives with good compliance, the prevalence of achieved target ambulatory BP, i.e., daytime BP<135/85 mmHg, nighttime BP<120/75 mmHg, and 24-hr BP<125/80 mmHg, was, respectively, 35.4%, 43.5%, and 20.4%.

Conclusions

Casual BP and 24-hr ambulatory BP were poorly controlled in the community-living elderly although many of the treated hypertensives showed good compliance. It is unlikely that this inadequate control of hypertension is due to poor compliance on the part of the subjects.