Impact of repeated measures of joint space width on the sample size calculation: An application to hip osteoarthritis

Ornetti, Paul; Gossec, Laure; Laroche, Davy; Combescure, Christophe; Dougados, Maxime; Maillefert, Jean-Francis

doi:10.1016/j.jbspin.2014.10.006

Scientific article

English

Impact of repeated measures of joint space width on the sample size calculation: An application to hip osteoarthritis

ContributorsOrnetti, Paul; Gossec, Laure; Laroche, Davy; Combescure, Christophe

; Dougados, Maxime; Maillefert, Jean-Francis

Published inJoint bone spine, vol. 82, no. 3, p. 172-176

Publication date2015

Abstract

The aims of the study were to investigate the impact of aggregation of repeated readings (a) on minimising variability of joint space width (JSW) measurements based on calculation of the smallest detectable difference (SDD) and (b) on sample size calculation in a hip OA randomized controlled trial (RCT).

Keywords

Aged
Body Weights and Measures
Disease Progression
Female
Hip Joint/radiography
Humans
Male
Middle Aged
Observer Variation
Osteoarthritis
Hip/radiography
Pilot Projects
Randomized Controlled Trials as Topic
Reproducibility of Results
Research Design
Sample Size

Affiliation entities

Faculté de médecine / Section de médecine clinique / Département de santé et médecine communautaires

Research groups

Epidémiologie clinique (115)

Citation (ISO format)

ORNETTI, Paul et al. Impact of repeated measures of joint space width on the sample size calculation: An application to hip osteoarthritis. In: Joint bone spine, 2015, vol. 82, n° 3, p. 172–176. doi: 10.1016/j.jbspin.2014.10.006

Article (Published version)

Identifiers

PID : unige:90511
DOI : 10.1016/j.jbspin.2014.10.006
PMID : 25575611

Journal ISSN1297-319X

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Impact of repeated measures of joint space width on the sample size calculation: An application to hip osteoarthritis

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