Table 4.

Model parameters—drug costs, treatment effects, and utility gains for all patients

	Drug cost (£ per 3 months, 2007/8)	Meta-analysis results (mean (95% CI))
		WOMAC total score	Utility weight (no adverse effects)
No treatment	-	25.54	0.688
Paracetamol (3000 mg)	10.64	23.08 (21.24 to 24.91)	0.701 (0.691 to 0.709)
Diclofenac (100 mg)	4.35	18.01 (16.79 to 19.22)	0.723 (0.718 to 0.727)
Naproxen (750 mg)	8.58
Ibuprofen (1200 mg)	8.01
Etoricoxib (30 mg)	44.97
Celecoxib (200 mg)	64.65
Omeprazole (20 mg)	6.43	-	-

WOMAC=Western Ontario and McMaster Universities osteoarthritis scale.