Abstract
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Serum Ferritin in Geriatric Individuals in the Shanghai Region: Distribution, Correlations, and Reference Intervals
by Ying Wang, Xueying Yu, Jiahui Fan, Man Huang, Yan Fu, Hui Zhang, Ruijiao Kong, Qiuhong Man
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Background: Serum ferritin levels have a clinical application in diagnosing diseases. However, the clinical standard levels and distribution characteristics of serum ferritin based on reference intervals (RIs) in the geriatric Han Chinese population in the East China region have not previously been well reported. This work aimed to investigate the correlation between serum ferritin levels and 14 metabolic markers, analyse the distribution of serum ferritin, and establish serum ferritin RIs for geriatric (> 60 years) individuals in Shanghai.
Methods: Four hundred and sixty-nine healthy Chinese Han subjects (age, 61 - 95 years; median, 71 years) were recruited from the Health Examination Center of Shanghai Fourth People’s Hospital in 2021. Serum ferritin was measured on a Roche Cobas 8000 e602, and 14 biochemical parameters were measured on a Siemens Atellica CH-930 to analyse distributions and correlations and to establish serum ferritin RIs for the elderly population in Shanghai.
Results: Serum ferritin levels were significantly different between genders (p = 0.06). The established RIs for serum ferritin were 24.44 - 627.09 ng/mL and 48.18 - 554.88 ng/mL in males and females, respectively. Correlation analyses revealed that ferritin levels were correlated with 7 parameters, including body mass index (BMI, p = 0.02), gamma-glutamyl transferase (GGT, p < 0.01), alanine aminotransferase (ALT, p < 0.01), triglycerides (TGs, p < 0.01), high-density lipoprotein (HDL, p < 0.01), total protein (TP, p < 0.01) and prealbumin (PAB, p < 0.01). When the participants were further divided by BMI, aspartate aminotransferase (AST) was an additional variable that was positively correlated only in the overweight/obese group (p = 0.04), while globulin (GLO) was an additional variable that was positively correlated only in the other group (p < 0.01).
Conclusions: Nutrition and metabolism may play a great role in the regulation of serum ferritin levels in geriatric individuals in vivo. The RIs established for serum ferritin may provide precise references for further studies on ferritin-related disease in geriatric individuals.
DOI: 10.7754/Clin.Lab.2023.221223
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