Optimizing reliability of digital inclinometer and flexicurve ruler measures of spine curvatures in postmenopausal women with osteoporosis of the spine: an illustration of the use of generalizability theory.

Autor: Macintyre NJ; School of Rehabilitation Science, McMaster University, IAHS, Room 403, 1400 Main Street West, Hamilton, ON, Canada L8S 1C7., Bennett L, Bonnyman AM, Stratford PW
Jazyk: angličtina
Zdroj: ISRN rheumatology [ISRN Rheumatol] 2011; Vol. 2011, pp. 571698. Date of Electronic Publication: 2011 Feb 07.
DOI: 10.5402/2011/571698
Abstrakt: The study illustrates the application of generalizability theory (G-theory) to identify measurement protocols that optimize reliability of two clinical methods for assessing spine curvatures in women with osteoporosis. Triplicate measures of spine curvatures were acquired for 9 postmenopausal women with spine osteoporosis by two raters during a single visit using a digital inclinometer and a flexicurve ruler. G-coefficients were estimated using a G-study, and a measurement protocol that optimized inter-rater and inter-trial reliability was identified using follow-up decision studies. The G-theory provides reliability estimates for measurement devices which can be generalized to different clinical contexts and/or measurement designs.
Databáze: MEDLINE