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Misclassification of blood pressure of Vietnamese adults when only a single measurement is used

Tran, NTT, Blizzard, CL ORCID: 0000-0002-9541-6943, Luong, KN, Truong, NLV, Tran, BQ, Veloudi, P, Otahal, P ORCID: 0000-0003-4042-1769, Nelson, M ORCID: 0000-0001-9941-7161, Magnussen, C ORCID: 0000-0002-6238-5730, Gall, S ORCID: 0000-0002-5138-2526, Bui, TV, Srikanth, V, Au, TB, Ha, ST, Phung, HN, Tran, MH, Callisaya, M ORCID: 0000-0003-2122-1622 and Sharman, J ORCID: 0000-0003-2792-0811 2018 , 'Misclassification of blood pressure of Vietnamese adults when only a single measurement is used' , Journal of the American Society of Hypertension , pp. 1-10 , doi: 10.1016/j.jash.2018.06.015.

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Abstract

A single clinic measurement of blood pressure (BP) may be common in low- and middle-income countries because of limited medical resources. This study aimed to examine the potential misclassification error when only one BP measurement is used. Participants (n = 14,706, 53.5% females) aged 25-64 years were selected by multistage stratified cluster sampling from eight provinces, each representing one of the eight geographical regions of Vietnam. Measurements were made using the World Health Organization STEPS protocols. Data were analyzed using complex survey methods. For systolic BP, 62.7% had a higher first reading whereas 30.0% had a lower first reading, and 27.3% had a reduction of at least 5 mmHg whereas 9.6% had an increase of at least 5 mmHg. Irrespective of direction of change, increased variability in BP was associated with greater age, urban living, greater body size and fatness, reduced physical activity levels, elevated glucose, and raised total cholesterol. These measurement variations would lead to substantial misclassification in diagnosis of hypertension based on a single reading because almost 20% of subjects would receive a different diagnosis based on the mean of two readings.

Item Type: Article
Authors/Creators:Tran, NTT and Blizzard, CL and Luong, KN and Truong, NLV and Tran, BQ and Veloudi, P and Otahal, P and Nelson, M and Magnussen, C and Gall, S and Bui, TV and Srikanth, V and Au, TB and Ha, ST and Phung, HN and Tran, MH and Callisaya, M and Sharman, J
Keywords: blood pressure, mis-diagnosis, reading
Journal or Publication Title: Journal of the American Society of Hypertension
Publisher: Elsevier Inc.
ISSN: 1933-1711
DOI / ID Number: 10.1016/j.jash.2018.06.015
Copyright Information:

Copyright 2018 Published by Elsevier Inc. on behalf of American Heart Association.

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