Femoroacetabular Impingement Randomised controlled Trial (FIRST) - a multi-centre randomized controlled trial comparing arthroscopic lavage and arthroscopic osteochondroplasty on patient important outcomes and quality of life in the treatment of young adult (18–50 years) femoroacetabular impingement: a statistical analysis plan

Table 4 Study outcomes by treatment group

	Treatment X n =	Treatment Y n =	Mean difference^a (95% CI)	p value
	mean (SD)	mean (SD)	Mean difference^a (95% CI)	p value
Primary outcome (pain as measured by VAS)
Secondary outcomes
SF-12 PCS
SF-12 MCS
HOS
iHOT-12
EQ-5D utility score
	n (%)	n (%)	Odds ratio^b (95% CI)	p value
Hip-related complications
Re-operations

VAS visual analogue scale, PCS physical component summary, MCS mental component summary, HOS Hip Outcome Score, iHOT International Hip Outcome Tool, EQ-5D Euroqol-5 Dimensions, SD standard deviation, CI confidence interval
^aFrom the multiple linear regression model
^bFrom the logistic regression model

ISSN: 1745-6215