Objective-To describe patient hypertension knowledge and associations with blood pressure measurements.Methods-Patients with chronic kidney disease (CKD) were asked about the impact of high blood pressure on kidneys and their target blood pressure goal. Systolic blood pressure was measured using automated sphygmomanometers.Results-In 338 adults with hypertension and pre-dialysis CKD, the median [IQR] age was 59 [47, 68] years, 45% [n=152] were women, and 18% [n=62] were non-white. Lower systolic blood pressure (SBP) was associated with female sex (SBP mmHg median [IQR] 132 [117,149] women vs. 137 [124,152] men; p=0.04), less advanced CKD (SBP 134 [122,147] stages 1-2 vs. 132 [118,148] stage 3 vs. 140 [125,156] stages 4-5; p=0.01), and patient ability to correctly identify SBP goal (SBP 134 [119,150] correct vs. 141 [125,154] incorrect; p=0.05). In adjusted analysis, knowledge of blood pressure goal remained independently associated with lower SBP (−9.96 mmHg [−19.97, −1.95] in correct respondents vs. incorrect; p<0.001).
Conclusion-Patient knowledge of goal blood pressure is independently associated with improved blood pressure control.Practice Implications-Interventions to improve patient knowledge of specific blood pressure targets may have an important role in optimizing blood pressure management. Publisher's Disclaimer: This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Models of optimal care in chronic disease promote patient education and goal setting to improve outcomes [8][9][10]. Clinical benefits are observed in many chronic conditions when education programs include specific disease information and goal setting with patients [11,12]. However, there is little data available in patients with kidney disease, examining whether a relationship exists between clinical measures, specifically blood pressure control, and patient knowledge about goals of blood pressure treatment.
NIH Public AccessWe examined associations between patient hypertension knowledge and systolic blood pressure (SBP) in patients with pre-dialysis CKD and hypertension. We chose to examine associations with systolic blood pressure because of its strong association with cardiovascular outcomes and mortality [13][14][15]. We hypothesized patient knowledge of specific blood pressure treatment goals would be associated with improved blood pressure control.
Methods
Study DesignThe study design was cross sectional, and part of a larger study of 100 questionnaire items to validate a survey of kidney disease specific knowledge in patients with pre-dialysis CKD [16]. Patients with established CKD stages 1-5 (per Na...