Stability and reliability of plasma level of lipid biomarkers and their correlation with dietary fat intake

Sang Ah Lee, Wanqing Wen, Yong Bing Xiang, Sergio Fazio, MacRae F. Linton, Qiuyin Cai, Dake Liu, Wei Zheng, Xiao Ou Shu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The reliability and stability of plasma lipid biomarkers and their association with dietary fat intake were evaluated among 48 subjects who were randomly chosen from the participants of a validation study of the population-based cohort, the Shanghai Men's Health Study (SMHS). Four spot blood samples, one taken each season, were measured for total cholesterol, triglyceride, HDL-cholesterol, and LDL-cholesterol levels. The reliability and stability of these measurements were assessed by intraclass correlation coefficients (ICC) and by the correlations between a randomly chosen measurement with the mean of measurements across seasons using a bootstrap approach. The median levels for total cholesterol, triglycerides, HDL-cholesterol, and LDL-cholesterol were 177.5, 164.5, 41.0, and 102.5 (mg/dl), respectively. The ICCs of the biomarkers ranged from 0.58 (LDL-cholesterol) to 0.83 (HDL-cholesterol). The correlation between randomly chosen spot measurements and the mean measurement were 0.91, 0.86, 0.93, and 0.83 for total cholesterol, triglycerides, HDL-cholesterol, and LDL-cholesterol, respectively. The correlations of lipid biomarkers with dietary fat intake and other lifestyle factors were comparable to other previous reports. In conclusion, this study suggests that measurements of lipid biomarkers from a single spot blood sample are a good representation of the average blood levels of these biomarkers in the study population and could be a useful tool for epidemiological studies.

Original languageEnglish (US)
Pages (from-to)73-79
Number of pages7
JournalDisease Markers
Volume24
Issue number2
StatePublished - 2008
Externally publishedYes

Fingerprint

Dietary Fats
Biomarkers
LDL Cholesterol
HDL Cholesterol
Lipids
Plasmas
Triglycerides
Cholesterol
Blood
Men's Health
Validation Studies
Population
Life Style
Epidemiologic Studies
Association reactions

ASJC Scopus subject areas

  • Medicine(all)
  • Clinical Biochemistry

Cite this

Lee, S. A., Wen, W., Xiang, Y. B., Fazio, S., Linton, M. F., Cai, Q., ... Shu, X. O. (2008). Stability and reliability of plasma level of lipid biomarkers and their correlation with dietary fat intake. Disease Markers, 24(2), 73-79.

Stability and reliability of plasma level of lipid biomarkers and their correlation with dietary fat intake. / Lee, Sang Ah; Wen, Wanqing; Xiang, Yong Bing; Fazio, Sergio; Linton, MacRae F.; Cai, Qiuyin; Liu, Dake; Zheng, Wei; Shu, Xiao Ou.

In: Disease Markers, Vol. 24, No. 2, 2008, p. 73-79.

Research output: Contribution to journalArticle

Lee, SA, Wen, W, Xiang, YB, Fazio, S, Linton, MF, Cai, Q, Liu, D, Zheng, W & Shu, XO 2008, 'Stability and reliability of plasma level of lipid biomarkers and their correlation with dietary fat intake', Disease Markers, vol. 24, no. 2, pp. 73-79.
Lee, Sang Ah ; Wen, Wanqing ; Xiang, Yong Bing ; Fazio, Sergio ; Linton, MacRae F. ; Cai, Qiuyin ; Liu, Dake ; Zheng, Wei ; Shu, Xiao Ou. / Stability and reliability of plasma level of lipid biomarkers and their correlation with dietary fat intake. In: Disease Markers. 2008 ; Vol. 24, No. 2. pp. 73-79.
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