برآورد تعداد دفعه‏های اندازه‌گیری فشارخون برای دست یابی به پایایی مطلوب

The aim of this cross-sectional, methodological study was to estimate the blood pressure measurement frequency for optimum reliability. the study was conducted on available data from the non-communicable diseases risk factors surveillance system for hamadan province in 2009. the sample size was 984. the reliability of systolic and diastolic blood pressure was measured using intra-class correlation (icc). icc for twice measurements of systolic and diastolic blood pressure was 0.93 and 0.90, respectively. it seems that application of this method is beneficial to overcome the limitations of repeated measurements including ethical considerations and financial issues.