Cardiovascular Risk Factor Profiles for Peripheral Artery Disease and Carotid Atherosclerosis among Chinese Older People: A Population-Based Study
2014 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 9, no 1, e85927- p.Article in journal (Refereed) Published
Objectives: Epidemiological data concerning atherosclerotic disease among older people in rural China are sparse. We seek to determine prevalence and cardiovascular risk factor profiles for peripheral artery disease (PAD) and carotid atherosclerosis (CAS) among Chinese older people living in a rural community. Methods: This cross-sectional study included 1499 participants (age >= 60 years, 59.0% women) of the Confucius Hometown Aging Project in Shandong, China. From June 2010-July 2011, data were collected through interviews, clinical examinations, and laboratory tests. PAD was defined as an ankle-brachial index <= 0.9. Carotid intima-media thickness (cIMT) and carotid artery stenosis were assessed by ultrasonography. We defined moderate stenosis as carotid stenosis >= 50%, and severe stenosis as carotid stenosis >= 70%. cIMT >= 1.81 mm was considered as an increased cIMT (a measure of CAS). Data were analyzed with multiple logistic models. Results: The prevalence was 5.7% for PAD, 8.9% for moderate stenosis, 1.8% for severe stenosis, and 11.2% for increased cIMT. After controlling for multiple potential confounders, diabetes, an increased low-density lipoprotein cholesterol (LDL-C)/high-density lipoprotein cholesterol (HDL-C) ratio, and hypertension were significantly or marginally associated with PAD. Ever smoking, hypertension, and an increased LDL-C/HDL-C ratio were significantly associated with an increased likelihood of increased cIMT. An increasing number of those cardiovascular risk factors were significantly associated with an increasing odds ratio of PAD and increased cIMT, respectively (p for linear trend < 0.001). Conclusion: Among Chinese older people living in a rural community, PAD, carotid artery stenosis, and an increased cIMT are relatively uncommon. Cardiovascular risk factor profiles for PAD and CAS are slightly different, with hypertension and an increased LDL-C/HDL-C ratio being associated with an increased likelihood of both PAD and increased cIMT.
Place, publisher, year, edition, pages
2014. Vol. 9, no 1, e85927- p.
Public Health, Global Health, Social Medicine and Epidemiology
IdentifiersURN: urn:nbn:se:su:diva-101008DOI: 10.1371/journal.pone.0085927ISI: 000330237000076OAI: oai:DiVA.org:su-101008DiVA: diva2:699668
Department of Science and Technology 2008GG00221; Department of Health 2009-067; Natural Science Foundation of Shandong Province, China ZR2010HL031; Young Scholar Grant for Strategic Research in Epidemiology at Karolinska Institutet; Swedish Research Council and Karolinska Institutet, Stockholm, Sweden 2014-02-282014-02-212015-03-17Bibliographically approved