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Multivariate regression analysis identifying independent predictors of fatigue in older patients. Serum vitamin D level emerges as a significant factor after adjusting for age, comorbidities, and medication use.
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![Figure 6: Multivariate regression analysis identifying independent predictors of fatigue in older patients. Serum vitamin D level emerges as a significant factor after adjusting for age, comorbidities, and medication use.]() > Source: Manuela Pennisi et al. "Decrease in Serum Vitamin D Level of Older Patients with Fatigue.." *Nutrients*, 2019. PMID: [31635199](https://pubmed.ncbi.nlm.nih.gov/31635199/)
<figure> <img src="" alt="Multivariate regression analysis identifying independent predictors of fatigue in older patients. Serum vitamin D level emerges as a significant factor after adjusting for age, comorbidities, and medication use." /> <figcaption>Figure 6. Multivariate regression analysis identifying independent predictors of fatigue in older patients. Serum vitamin D level emerges as a significant factor after adjusting for age, comorbidities, and medication use.<br> Source: Manuela Pennisi et al. "Decrease in Serum Vitamin D Level of Older Patients with Fatigue.." <em>Nutrients</em>, 2019. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/31635199/">31635199</a></figcaption> </figure>