There is an interaction between mean platelet volume (MPV), platelet count (PC), inflammation, and platelet reactivity. The present study evaluated the relationship between the MPV/PC ratio and blood pressure (BP) using 24 h ambulatory BP monitoring (ABPM). A total of 720 patients (male: 291) were included in the study. Based on the ABPM outcomes, they were divided into two groups: dipper hypertensive (n = 350; male: 136) and non-dipper hypertensive (n = 370; male: 155). Peripheral venous blood samples obtained at admission were used for PC and MPV calculations. Both groups displayed identical clinical characteristics. Non-dipper hypertensives had a higher MPV/PC ratio than dipper hypertensives [0.044; (0.036-0.055); 0.036 (0.030-0.042); P < .001]. According to receiver operating characteristic (ROC) curve analysis, the optimal cut-off value of the MPV/PC ratio for predicting non-dipper patterns in hypertensive patients was 0.040 (area under the curve [AUC]: 0.726, P < .001). Sensitivity was 64.1% and specificity was 64.3%. The MPV/PC ratio may represent mechanisms involved in increasing cardiovascular risk in non-dipper hypertensives compared with dipper hypertensives.
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