Prevalence of White Coat Hypertension amongst Patients in the Kurdistan Region of Iraq-Erbil

Abstract

Background: White coat hypertension (WCH) is a condition in which people exhibit an elevation in blood pressure (BP) in a clinical setting, although they do not show such elevation in other settings. This study aims to provide new insight into determining the prevalence of WCH amongst patients with or without any cardiovascular risk. Method: This is a cross-sectional study of convenience sampling study design where 300 patients were involved based on their consultation to a Tertiary Healthcare Unit between November 2021 to March 2022 in Erbil city. Patients were classified according to the ESC into different categories of BP patterns by comparing the first BP reading that was taken at clinic with their average AMBP readings which were taken at home. Results: A total of 300 patients were included in the study where 58% of the population was male and 42% of the population was female. Of the population, 16% had WCH, 12.3% had sustained HTN, 59.3% were considered to be normotensive (NT), and 12.3% among them were categorized as masked hypertension. From the total of 47 patients that were diagnosed with WCH, 55.3% were male and 44.7% were female patients. The overall average Systolic Blood Pressure in WCH was 125.79±15.30 mmHg, and in Hypertensives it was 147.70±17.15 mm Hg with a P-value of <0.001. The Mean Arterial Pressure in WCH was 94.63±8.87 mmHg and in Hypertensives it was 112.16±13.62 mmHg with a P-value of <0.001. The average Pulse Pressure in WCH was 75.27±9.42 mmHg, and in Hypertensives it was 76.35±9.11 mmHg with a P-value of 0.001. Conclusion: WHC is significantly prevalent in Erbil city; therefore AMBP monitoring should be performed for those with certain indications to limit the prescription of unnecessary long-term medications with possibly significant side effects to patients with WHC.