Concurrent validity of the Occiput-Bed Distance for measuring hyperkyphosis
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Abstract
Background: Hyperkyphosis is an important health problem, which may have negative impacts on physical and psychological healths. Therefore, the screening examination for hyperkyphosis condition is very crucial. The Occiput-Bed Distance (OBD) was developed as a new tool. However, no studies reported a concurrent validity of this new tool comparing to Occiput-Wall Distance (OWD), which is commonly used in nowadays.
Objective: To determine the concurrent validity of the OBD using the OWD as a standard method.
Methods: This research was a cross-sectional study, which examined people with hyperkyphosis using the OWD at least 6.5 centimeters. Thirty participants with aged at least 10 years old were reassessed their hyperkyphosis using the OBD. The data from two methods were analyzed for concurrent validity using a correlation coefficient.
Results: The concurrent validity of OBD compared to the OWD was reported as low correlation (rs = 0.432, p = 0.022). However, when the data were categorized by age, there was good correlation only for the age at least 60 years old (r = 0.779, p = 0.008).
Conclusion: Hyperkyphosis measurement using the OBD was appropriate for screening in older adults, which is an alternative method for health officers to early screen hyperkyphosis. However, the investigation of concurrent validity of a new tool compared to a gold standard method using the x-ray should be considered in further studies.
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