Table 2.

Model 1: differences in outcome between four antibiotic strategies for eradication of Helicobacter pylori

Strategy	Cost (£)	% Eradication of H pylori	Cost of successful eradication (£)	Incremental cost of strategy 4 to strategies 1, 2, or 3 (£)*	Time (years) for future relapse treatment costs to equal incremental cost of strategy 4†
					Not discounted	Discounted‡
1
OAM	20.20	85	23.76	363.58	6.5	7.9
2
OCM	29.20	91	32.08	589.59	10.6	15.7
3
OAM+UBT+OCM	55.38	94	58.6 3	326.57	5.9	6.9
4
OCM+UBT+OCM	62.63	97	64.78	Base	Base	Base

OAM=omeprazole, amoxycillin, and metronidazole; OCM=omeprazole, clarithromycin, and metronidazole; UBT=¹³C-urea breath test.  

^*Additional cost of obtaining 1% increase in eradication rate.  

^†Incremental cost of strategy 4 divided by annual cost (£55.60) of relapse treatment.  

^‡Future costs incurred after first year of eradication treatment discounted at 6% per year.