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Difference between health-exam blood pressure (BP) and research-quality BP. a systolic blood pressure (SBP); b diastolic blood pressure (DBP). Generalized linear mixed effect model was used to examine the difference between health-exam BP and research-quality BP of the same person with random effects for participants and HMC sites. Interaction term between source (health-exam or research-quality) and time since management was included in models
