title: Factors affecting the precision of bone mineral measurements. Part 2: Some statistical notes relating to photon counting statistics and rates of bone loss.
abstract: This paper discusses some statistical aspects of absorptiometric bone mineral measurements. In particular, the contribution of photon counting statistics to overall precision is estimated, and methods available for carrying out statistical comparisons of bone loss and determining their precision are reviewed. The use of replicate measurements as a means of improving measurement precision is also discussed.
authors.affiliation: Flinders University of South Australia, Department of Radiology, Bedford Park.
authors.forename: J
authors.initials: J
authors.lastname: Cormack
authors.forename: S P
authors.initials: SP
authors.lastname: McDonald
authors.forename: C A
authors.initials: CA
authors.lastname: Evill
authors.forename: M R
authors.initials: MR
authors.lastname: Sage
mesh_terms: D015502:Absorptiometry, Photon / Q000706:statistics & numerical data*; D015519:Bone Density; D005260:Female; D006801:Humans; D008875:Middle Aged; D012016:Reference Values