Comparison and correlation between self-measured blood pressure, casual blood pressure measurement and ambulatory blood pressure monitoring

Results: A total of 32 patients were assessed, of which 50.09% were females, with a mean age of 59.7 (± 11.2), BMI mean of 26.04 (± 3.3) kg/m². Mean systolic (SBP) and diastolic blood pressure (DBP) for SMBP were 134 (± 15.71) mmHg and 79.32 (± 12.38) mmHg. The casual measurement means of SBP and DBP were, respectively, 140.84 (± 16.15) mmHg and 85 (± 9.68) mmHg. The mean values of ABPM during the wakefulness period were 130.47 (± 13.26) mmHg and 79.84 (± 9.82) mmHg for SBP and DBP, respectively. At the comparative analysis, the SMBP had similar results to those obtained at ABPM (p > 0.05) and different from the casual measurement (p < 0.05). At the analysis of correlation, SMBP values were higher than the casual measurements, considering ABPM as the reference standard in BP measurements. Conclusion: SMBP showed a better correlation with ABPM than the casual measurement and was also better correlated with the latter, especially regarding the DBP and should be considered as a low-cost alternative for the follow-up of the hypertensive patient. (Arq Bras Cardiol. 2011; [online].ahead print, PP.0-0)