Key result
Central aortic systolic blood pressure was a stronger predictor of chronic kidney disease than brachial systolic blood pressure in women (OR 1.57; 95% CI 1.39-1.79).
Why the study?
Does non-invasive central aortic systolic blood pressure measurement improve chronic kidney disease risk prediction compared to brachial blood pressure measurements in middle-aged adults?
Cross-Sectional (n=10,197)
Yes
Does non-invasive central aortic systolic blood pressure measurement improve chronic kidney disease risk prediction compared to brachial blood pressure measurements in middle-aged adults?
Odds Ratio: 1.57 (95% CI 1.39–1.79)
p-value: p=<0.05
Non-invasively measured central aortic systolic blood pressure is a stronger predictor of chronic kidney disease than brachial blood pressure in middle-aged women.
Central aortic SBP measurement warrants prospective testing for CKD risk prediction in women; should not yet change clinical practice.
BACKGROUND/AIMS: To investigate whether the invasively obtained central aortic systolic blood pressure (CSBP) predicts chronic kidney disease (CKD) better than brachial systolic blood pressure (SBP), brachial diastolic blood pressure (DBP) and brachial pulse pressure (PP) in the middle-aged Chinese population. METHODS: A cross-sectional study was carried out across China in 2009-2010 among the subjects aged 35-64 years. CSBP was measured non-invasively by radial artery applanation tonometry B-pro (A-PULSE CASP and corresponding software). CSBP, SBP, DBP and PP were standardized with Z-score and the odds ratios were calculated with multivariable logistic regression model. RESULTS: Data of 10197 participants were analyzed. The multivariable logistic regression after adjusting for possible confounders showed that a 1-standard deviation increment in each blood pressure measurement was associated with greater risk of CKD in both men and women (P < 0.05). The association of CSBP with CKD was stronger than SBP, DBP and PP in women, while in men the association of CSBP with CKD was stronger only than PP. With CSBP and SBP entering into the multivariable logistic regression models jointly, the odds ratio (95% confidence interval) for CSBP and SBP was 1.57 (1.39-1.79) and 1.22 (1.07-1.38) in women and 1.20 (1.03-1.39) and 1.48 (1.28-1.72) in men, respectively. With CSBP and DBP entering into the multivariable logistic regression models jointly, the odds ratio (95% confidence interval) for CSBP and DBP was 1.68 (1.52-1.84) and 1.15 (1.04-1.27) in women and 1.30 (1.15-1.46) and 1.45 (1.29-1.63) in men, respectively. With CSBP and PP entering into the multivariable logistic regression models jointly, the odds ratio (95% confidence interval) for CSBP and PP was 1.75 (1.58-1.94) and 1.06 (0.96-1.17) in women and 1.58 (1.41-1.77) and 1.04 (0.93-1.17) in men, respectively. CONCLUSION: CSBP and brachial blood pressure measurements are all predictors of CKD, however the non-invasively obtained CSBP may offer advantages over brachial blood pressure measurements in CKD risk prediction in women.
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Zhang et al. (2018) conducted a cross-sectional in Chronic kidney disease (n=10,197). Central aortic systolic blood pressure (CSBP) vs. Brachial blood pressure (SBP, DBP, PP) was evaluated on Chronic kidney disease (CKD) (OR 1.57, 95% CI 1.39-1.79, p=<0.05). Central aortic systolic blood pressure was a stronger predictor of chronic kidney disease than brachial systolic blood pressure in women (OR 1.57; 95% CI 1.39-1.79).
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