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J. Persson, K. Lindberg, T. P. Gustafsson, P. Eriksson, G. Paulsson-Berne, P. Lundman. Low plasma adiponectin concentration is associated with myocardial infarction in young individuals. Journal of Internal Medicine 2010; 268: 194-205.

In the above article, the metric unit was incorrectly stated in the abstract and methods sections as mg/mL. The correct metric unit is mg/L. The affected sections are shown below with the corrected units of measurement in bold type.

Abstract Section, page 194

Results. Adiponectin levels were inversely associated with myocardial infarction [odds ratio (OR) 9.3, 95% confidence interval (CI) 4.7–18.2, for the lowest quartile compared to the highest quartile]. This persisted after adjustment for history of hypertension, HDL cholesterol, smoking and body mass index (BMI) (OR 3.1, 95% CI 1.3–7.6). The rs266729 polymorphism was associated with adiponectin levels. Plasma adiponectin concentrations were lower in individuals with the rare G/G genotype (median 4.3 mg/L, interquartile range [IQR] 2.8–6.2) compared to the C/G (median 5.8 mg/L, IQR 3.9–8.0; P = 0.035) and C/C genotypes (median 5.5 mg/L, IQR 4.0–7.5; P = 0.083).

Methods Section, page 195

Patient and control groups

The Stockholm coronary atherosclerosis risk factor (SCARF) study database and biobank was used for this study [35]. A total of 387 survivors of a first MI were recruited together with 387 sex- and age-matched control subjects. All patients and their respective controls were below 60 years of age. They were interviewed, underwent a brief medical examination, and donated blood samples at 3 months after the index event. Details of recruitment and demographics of the groups have been published previously [35].Case–control pairs with available data on smoking and levels of glucose, creatinine, cholesterol, high-density lipoprotein (HDL) cholesterol, haemoglobin, proinsulin and adiponectin, and with C-reactive protein (CRP) ≤5.31 mg/L (10th percentile) were used in the study, resulting in 244 well-matched pairs (Figure 1). The study was approved by the Ethics Committee of Karolinska University Hospital, and all participants gave their informed consent.

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