Introduction: Serum vitamin D concentration is a major contributing factor for increasing the risk of fall and fall-related injuries in older adults. However, when prescribed and supplemented for these populations, the outcomes are controversial, and in several cases no improvement has been reported in reducing the risk of recurrent falls. This study aimed to examine the association between serum vitamin D concentration and recurrent falls in Iranian older adults. 

Methods: This cohort study was conducted in the emergency departments of two university hospitals. A cohort of 82 elderly participants aged over 60 and suffered from an unintentional episode of falling was evaluated six months after their first ED visit. A structured, self-administered checklist was developed to obtain the participants’ demographic and clinical information. Participants also were asked about any recurrent fall experience during follow-up. 

Results: The mean (SD) age of the study population was 75 (8). Over half of the participants were male (57.3%). The mean (median) serum 25-hydroxyvitamin D (25 (OH)D) concentration was 38 (34) ng/ml. Mean serum 25(OH)D levels varied slightly between gender groups (p=0.450). An inverse but insignificant association was found between the age of participants and their serum 25(OH)D levels (r=-0.03, p=0.7). A small but insignificant association also was found between the mean serum 25(OH)D level and the number of recurrent falls in elderly patients irrespective of their age, gender, or physical activity groups (OR=1.008, p=0.992). 

Conclusion: In contrast to previous studies, no significant association of serum 25(OH)D concentration was found with recurrent falls in Iranian older adults.


Keywords: 25-hydroxyvitamin D,falls, Vitamin D insufficiency, Iran, Elderly
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