Original Article

Accuracy of Self-Reported Hypertension, Diabetes, and Hyper-lipidemia among Adults of Liwan, Guangzhou, China

Abstract

Background: We aimed to determine the accuracy of self-reported diabetes, hypertension, and hyperlipidemia in Chinese adults and examine factors that affect the accuracy of self-reports.

Methods: This representative cross-sectional survey was conducted in Liwan District, Guangzhou City, Southeast China. Self-reported data were collected using a structured questionnaire. Biometrical data were recorded, including blood lipid, blood glucose and arterial blood pressure levels. Sensitivity, specificity, and κ values of self-reports were used as measurements of accuracy or agreements. The Robust Poisson-GEE was applied to determine the association of participants’ characteristics with the accuracy of self-reports.

Results: Self-reported and biometrical data of 1278 residents aged 18 yr and older (693 women and 585 men) were used to calculate three measures of agreement. The agreement between self-reports and biomedical measurements was substantial for both hypertension and diabetes (κ=0.77 and 0.76), but only slight for hyperlipidemia (κ=0.06). Similarly, the sensitivity was higher for hypertension and diabetes (72.3% and 71.2%) than for hyperlipidemia (6.8%), while the specificity was high overall (≥98%). The factors associated with an accurate self-reported diagnosis in respondents with disease included having undergone blood pressure measurement (for hypertension) or blood glucose measurement (for diabetes) in the past 6 month, having attended health knowledge lectures in the past year and having social health insurances (for hypertension), and having undergone physical discomfort in the past 2 weeks (for hypertension and diabetes).

Conclusion: The accuracy of self-reported hypertension and diabetes was high, whereas that of self-reported hyperlipidemia was lower among the population.

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IssueVol 49 No 9 (2020) QRcode
SectionOriginal Article(s)
DOI https://doi.org/10.18502/ijph.v49i9.4076
PMCIDPMC7898086
PMID33643935
Keywords
Hypertension Diabetes Hyperlipidemia Self-reported accuracy
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How to Cite
1.
GUO H, YU Y, YE Y, ZHOU S. Accuracy of Self-Reported Hypertension, Diabetes, and Hyper-lipidemia among Adults of Liwan, Guangzhou, China. Iran J Public Health. 2020;49(9):1622-1630.