Vitamin D Level and Activities of Daily Living in Octogenarians: Cross-Sectional Study

Abstract

IntroductionDespite the growing number of octogenarians, little is known about their vitamin D status and activities of daily living (ADL) relations.ObjectiveThe aim of this study was to investigate peculiarities of vitamin D and ADL and to assess their relations in octogenarians.MethodsA cross-sectional study was performed at the National Osteoporosis Centre located in Vilnius, Lithuania. Community-dwelling ambulatory persons aged ≥80 years were included. Current users of vitamin D supplements were excluded. Total 25 hydroxyvitamin D concentration in serum was measured with Cobas E411. Functional status was assessed by Katz ADL and the Lawton Instrumental Activities of Daily Living (IADL) scales. Subjects were divided into three groups according to age and into two groups according to vitamin D level. One-way analysis of variance with post hoc test was used to determine between-group comparisons. Associations between vitamin D and ADL score, and IADL score were assessed using Spearman’s correlation.ResultsThe study was performed on 153 octogenarians: 81 (52.9%) women and 72 (47.1%) men. The average age of subjects was 83.9 ± 3.2 years. Mean total 25 hydroxyvitamin D concentration was 11.2 ± 7.0 ng/ml; 137 (89.5%) persons had vitamin D deficiency, 12 (7.8%) had insufficiency, and only 4 (2.6%) persons were vitamin D sufficient. Positive weak correlation between total 25 hydroxyvitamin D and ADL score (r = 0.2, p = 0.01) and very weak correlation between total 25 hydroxyvitamin D and IADL score (r = 0.19, p = 0.02) were found. Total 25 hydroxyvitamin D level was correlated with ADL score in women (r = 0.23, p = 0.04). In the 80–84 years group ADL score correlated with total 25 hydroxyvitamin D level (r = 0.23, p = 0.02).ConclusionThe majority of investigated octogenarians had vitamin D deficiency. The level of vitamin D was associated with the ADL score. There was no association between the vitamin D level and the IADL score, although a weak correlation was found between vitamin D level and category of food preparation.

Beneficial Effect of Dietary Diversity on the Risk of Disability in Activities of Daily Living in Adults: A Prospective Cohort Study

“…Previous prospective studies indicated that higher consumption of dairy products is associated with a lower risk of functional disability [13]. Nutrients, such as vitamin D [14] and dietary fiber [15], are also reported to be related to ADL.…”

Sex Differences in Vitamin D Status as a Risk Factor for Incidence of Disability in Instrumental Activities of Daily Living: Evidence from the ELSA Cohort Study

“…Specifically on BADL, it is already established that deficient serum 25(OH)D increases the risk of incidence of disability [ 25 , 35 , 36 ]. Nevertheless, even with evidence of a cross-sectional association between low serum 25(OH)D concentrations and low IADL scores [ 17 , 18 ], longitudinal association between serum 25(OH)D concentrations and incident IADL disability remains rarely explored and with conflicting results.…”

“…Cross-sectional evidence has already shown that older adults with deficient serum 25(OH)D have a higher IADL impairment score compared to individuals with serum sufficiency [ 17 , 18 ]. In parallel, a longitudinal study showed that older women with deficient serum 25(OH)D at baseline had a greater functional decline in IADL at 2 years of follow-up [ 19 ].…”

Impact of sarcopenia on intertrochanteric femoral fracture in the elderly

“…These eight scoring items followed previous studies. Previous researched included these items included in the scale assessed were as previous research ( Alekna et al, 2018 ).…”