1. Lipoprotein(a) and incident type-2 diabetes: results from the prospective Bruneck study and a meta-analysis of published literature
- Author
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Paige, Ellie, Masconi, Katya L, Tsimikas, Sotirios, Kronenberg, Florian, Santer, Peter, Weger, Siegfried, Willeit, Johann, Kiechl, Stefan, Willeit, Peter, Paige, Ellie [0000-0003-0855-9872], Masconi, Katya L [0000-0002-9822-1105], Kronenberg, Florian [0000-0003-2229-1120], Willeit, Johann [0000-0003-4083-0466], Willeit, Peter [0000-0002-1866-7159], and Apollo - University of Cambridge Repository
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Adult ,Male ,Incidence ,Endocrinology, Diabetes and Metabolism ,Diabetes ,Middle Aged ,Meta-analysis ,Cross-Sectional Studies ,Diabetes Mellitus, Type 2 ,Italy ,Risk Factors ,Population Surveillance ,Humans ,Female ,Prospective Studies ,Prospective study ,Cardiology and Cardiovascular Medicine ,Lipoprotein(a) ,Aged ,Follow-Up Studies - Abstract
AIMS: We aimed to (1) assess the association between lipoprotein(a) [Lp(a)] concentration and incident type-2 diabetes in the Bruneck study, a prospective population-based study, and (2) combine findings with evidence from published studies in a literature-based meta-analysis. METHODS: We used Cox proportional hazards models to calculate hazard ratios (HR) for incident type-2 diabetes over 20 years of follow-up in 815 participants of the Bruneck study according to their long-term average Lp(a) concentration. For the meta-analysis, we searched Medline, Embase and Web of Science for relevant prospective cohort studies published up to October 2016. RESULTS: In the Bruneck study, there was a 12% higher risk of type-2 diabetes for a one standard deviation lower concentration of log Lp(a) (HR = 1.12 [95% CI 0.95-1.32]; P = 0.171), after adjustment for age, sex, alcohol consumption, body mass index, smoking status, socioeconomic status, physical activity, systolic blood pressure, HDL cholesterol, log high-sensitivity C-reactive protein and waist-hip ratio. In a meta-analysis involving four prospective cohorts with a total of 74,575 participants and 4514 incident events, the risk of type-2 diabetes was higher in the lowest two quintiles of Lp(a) concentrations (weighted mean Lp(a) = 3.3 and 7.0 mg/dL, respectively) compared to the highest quintile (62.9 mg/dL), with the highest risk of type-2 diabetes seen in quintile 1 (HR = 1.28 [1.14-1.43]; P < 0.001). CONCLUSIONS: The current available evidence from prospective studies suggests that there is an inverse association between Lp(a) concentration and risk of type-2 diabetes, with a higher risk of type-2 diabetes at low Lp(a) concentrations (approximately
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