Abstract
Background:
The aim of this study was to investigate the relationship between serum ferritin and diabetes mellitus (DM) in the Korean population.
Methods:
This cross-sectional study included 9,576 subjects (4,264 men, 2,394 premenopausal women, and 2,918 postmenopausal women) older than 19 years using data from the 2010-2012 Korean National Health and Nutrition Examination Survey. DM was defined as fasting plasma glucose ≥126 mg/dL, glycosylated hemoglobin ≥6.5%, or use of any glucose-lower medication including insulin therapy.
Results:
The overall prevalence of DM was 12.0, 3.6, and 17.3% in men, premenopausal women, and post-menopausal women, respectively. DM prevalence was greater with ferritin levels from Q1 to Q4: 10.3, 10.2, 12.7, and 14.8% in men; 2.0, 2.8, 2.8, and 6.4% in premenopausal women; and 13.9, 14.4, 18.1, and 22.9% in post-menopausal women, respectively. Compared with participants in Q1, the odds ratios (95% confidence intervals) for DM among participants in Q4 were 1.67 (1.20-2.32) in men, 2.06 (0.91-4.66) in premenopausal women, and 1.60 (1.09-2.35) in post-menopausal women after adjusting for age and other covariates.
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Table 1.
Table 2.
Table 3.
Q1 | Q2 | Q3 | Q4 | |
---|---|---|---|---|
Men | ||||
Ferritin, ng/mL | ≤68.3 | 68.4-104.6 | 104.7-158.5 | >158.5 |
Model 1a | 1 | 0.99 (0.71-1.38) | 1.27 (0.93-1.72) | 1.52 (1.14-2.03) |
Model 2b | 1 | 1.18 (0.82-1.69) | 1.54 (1.10-2.16) | 1.68 (1.22-2.31) |
Model 3c | 1 | 1.17 (0.81-1.69) | 1.51 (1.08-2.13) | 1.67 (1.20-2.32) |
Premenopausal women | ||||
Ferritin, ng/mL | ≤14.3 | 14.4-27.3 | 27.4-44.4 | >44.4 |
Model 1a | 1 | 1.41 (0.63-3.15) | 1.41 (0.63-3.16) | 3.29 (1.55-7.00) |
Model 2b | 1 | 1.21 (0.51-2.86) | 1.05 (0.43-2.57) | 2.07 (0.94-4.56) |
Model 3c | 1 | 1.20 (0.50-2.87) | 1.12 (0.45-2.81) | 2.06 (0.91-4.66) |
Post- menopausal women Ferritin, ng/mL | ≤36.5 | 36.6-57.7 | 57.8-87.3 | >87.3 |
Model 1a | 1 | 1.04 (0.74-1.47) | 1.36 (0.96-1.93) | 1.83 (1.29-2.60) |
Model 2b | 1 | 1.00 (0.68-1.46) | 1.21 (0.84-1.74) | 1.57 (1.07-2.30) |
Model 3c | 1 | 0.98 (0.67-1.45) | 1.19 (0.83-1.72) | 1.60 (1.09-2.35) |