Table V.

Complications at four months; estimated raw and adjusted odds ratios based on intention-to-treat analysis

	Thompson (n = 482)	Exeter/Unitrax (n = 482)	OR	Adjusted§	95% CI	p-value
Local complications*	19	28	1.502	1.507	0.828 to 2.741	0.179
Systemic complications†	6	9	1.509	1.513	0.530 to 4.316	0.439
Unrelated adverse events‡	75	72	0.953	0.950	0.665 to 1.358	0.779

OR, odds ratio; CI, confidence interval

*Erythema, serious drainage, purulent drainage, microbiological infection, dehiscence, antibiotics, debridement, implant revision, neurological injury, tendon injury, deep vein thrombosis, wound infection, failure of fixation, dislocation

†Blood transfusion

‡Pneumonia, urinary tract infection, cerebrovascular accident, myocardial infarction, other

§Mixed effects regression based on a complete case analysis with treatment group, age group and gender as covariates (fixed effects) and recruiting centre as a random effect