The association between low blood lead levels and the prevalence of prehypertension among nonhypertensive adults in Korea
- Authors
- Lee, Wanhyung; Yoon, Jin-ha; Roh, Jaehoon; Lee, Seunghyun; Seok, Hongdeok; Lee, June-hee; Jung, Pil Kyun; Rhie, Jeongbae; Won, Jong-Uk
- Issue Date
- Sep-2016
- Publisher
- WILEY-BLACKWELL
- Citation
- AMERICAN JOURNAL OF HUMAN BIOLOGY, v.28, no.5, pp 729 - 735
- Pages
- 7
- Journal Title
- AMERICAN JOURNAL OF HUMAN BIOLOGY
- Volume
- 28
- Number
- 5
- Start Page
- 729
- End Page
- 735
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/71504
- DOI
- 10.1002/ajhb.22857
- ISSN
- 1042-0533
1520-6300
- Abstract
- ObjectivesLow-level lead exposure has been associated with increases in blood pressure (BP) and impairment of the cardiovascular system. Prehypertension is not categorized as a disease currently; however, individuals with untreated prehypertension are known to be at increased risk of progression to hypertension and mortality caused by cardiovascular disease. We investigated the association between blood lead levels below the threshold for the harmful effects of lead and the prevalence of prehypertension in Korean adults. MethodsA total of 8,493 participants (3,945 men and 4,548 women) were included in the current analysis, using data from the fourth, fifth, and sixth Korean National Health and Nutrition Examination Survey (KNHANES) in 2007-2013. Blood analysis, self-report questionnaires, and physical examinations were used to assess blood lead levels, BP, and medical history. Odds ratios (OR) and 95% confidence intervals (95% CI) for prehypertension were calculated using multiple logistic regression models. ResultsCompared to the first quartile (Q1) blood lead level (0.206-1.539 g/dl), the ORs (95% CI) were 1.24 (1.04-1.48) in Q2, (1.540-2.056 g/dl), 1.27 (1.06-1.52) in Q3, (2.057-2.716 g/dl), and 1.30 (1.07-1.60) in Q4 (2.717-24.532 g/dl) for the prevalence of prehypertension after adjusting for age, sex, morbidity status, socioeconomic status, and health behavioral variables. ConclusionsOur large, cross-sectional, nationwide study revealed that blood lead levels below the threshold for the harmful effects of lead were significantly associated with prehypertension. Am. J. Hum. Biol. 28:729-735, 2016. (c) 2016 Wiley Periodicals, Inc.
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