| Keywords |
Femur bone mineral density ; Physical activity ; Health-related quality of life ; Elderly |
| Abstract |
This study investigated the associations of bone mineral density (BMD) and physical activity with healthrelated quality of life (HRQoL) in elderly. Data from the 2008-2011 Korean National Health and Nutrition Examination Survey (KNHANES) involving 5,776 elderly aged ≥ 60 years were used. Based on femur neck BMD T-scores, subjects were classified as normal BMD and osteopenia/osteoporosis. According to WHO recommendations of physical activity for elderly, the subjects were classified as sufficiently active, insufficiently active, and completely inactive groups. Logistic regression analyses were used to determine the odds ratio (OR) for lowest EuroQoL-5 dimension (EQ-5D) and EuroQoL-visual analogue scale (EQ-VAS). Compared to the sufficiently active group (reference), completely inactive group had a higher OR for lowest EQ-5D (OR=1.649, P=.002) and EQ-VAS (OR=1.451, P=.021) in normal BMD of men, and in terms of osteopenia/osteoporosis, completely inactive group had a higher OR than sufficiently active group for lowest EQ-5D (OR=1.427, P=.010) and EQ-VAS (OR=1.986, P<.001). Similarly, in comparison to the sufficiently active group, completely inactive group had a higher OR for lowest EQ-VAS (OR=1.283, P=.008) in osteopenia/osteoporosis in women. The current findings suggested that the prognostic importance of BMD status and physical activity for quality of life might be sex-specific in elderly. |