2. Dept. of Evidence for Population Health Unit, School of Epidemiology and Health Sciences, The University of Manchester, Manchester, UK.
3. Depts. of Public Health, International School of Medicine, Istanbul Medipol University, Istanbul, Turkey.
4. Dept. of Mechanical Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkey.
5. Dept. of Radiology, Medipol International School of Medicine, Istanbul Medipol University, Istanbul, Turkey.
6. Dept. of Biostatistics and Medical Informatics, Bezmialem Vakif University, Istanbul, Turkey.
Aim: The aim of this study was to compare the accuracy of blood pressure (BP) readings with manual aneroid sphygmomanometer (MAS), manual mercury (MM) and an automated office digital blood pressure (AODBP) device.
Subjects and methods: A cross-sectional study based on 1154 patients included sociodemographics, lifestyle habits, anthropometric measurements, and clinical biochemistry parameters. The sleep quality of participants was measured using the Pittsburgh Sleep Quality Index (PSQI) test. The Bland-Altman plot analysis is used to compare two measurements’ agreement against a mercury sphygmomanometer (MS).
Results: Out of 1154 subjects, 528 (47.6%) were men and 626 (52.4%) were women. The study revealed significant differences between gender for age, educational, occupational, income, smoking, exercise, sport activities and fatigue, respectively. The present study showed that accurate measurement of BP is MAS readings which were slightly higher than AODBP estimates. Compared to the gold standard MM, the MAS provides better accuracy, valid and reliable readings than the AODBP device. Similarly, the biochemistry parameters regarding vitamin D, blood glucose, HbA1c, creatinine, bilirubin, albumin, total cholesterol, LDL-C, uric acid, and blood pressures revealed significantly gender differences. Multivariate stepwise logistic regression analysis revealed that the vitamin D deficiency (p<0.001), lack of sleep (p<0.001), lack of physical activity, (p<0.001), systolic blood pressure, mmHg (p=0.002), diastolic blood pressure, (p=0.005), obesity (p=0.006), smoking (p=0.015), and fatigue (p=0.032) were considered at higher risk as a predictors for hypertension patients.
Conclusion: The present study showed that accurate measurement of BP is MAS readings, which were slightly higher than AODBP estimates. Compared to the gold standard MM, the MAS provides better accuracy, valid and reliable readings than the AODBP device.
Keywords: Blood pressure, diastolic, systolic, mercury, digital, sphygmomanometer, diagnostic errors, epidemiological factors