Dougados 1995.

Methods	Random allocation (computer generated numbers) metrologist blinded to treatment allocation
Participants	Multicentre spondyloarthropathy trial N=136 (psoriatic arthritis only)
Interventions	Salazopyrin 2g/day versus identical placebo
Outcomes	All Omeract 1 outcomes Duration 24 weeks
Notes	3 variables included in analysis after discussion with authors Intention‐to‐treat analysis
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Low risk	A ‐ Adequate