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Receiver operating characteristic curves between the 24-hour mean systolic blood pressure (SBP) and 7:00 AM, 2:00 PM, and 9:30 PM and the office mean SBP for diagnosis of uncontrolled hypertension. The area under the curve (AUC) values of 7:00 AM and 9:30 PM were signif icantly higher than those of 2:00 PM and the office mean SBP based on DeLong’s test. CI, confidence interval.
