Table 4: The benefit-cost ratio estimates of different screening programs for gallstone disease.


Benefit-cost ratio

Payer's perspective Society perspective

Annual screening 2.89 (38,073/13,180) 19.61 ((38,073 + 220,345)/13,180)
Biennial screening 3.70 (24,356/6,590) 31.80 ((24,356 + 185,222)/6,590)
3-yearly screening 4.03 (17,693/4,393) 44.80 ((17,693 + 179,125)/4,393)
4-yearly screening 3.89 (12,819/3,295) 53.21 ((12,819 + 163,143)/3,295)
5-yearly screening 4.71 (12,407/2,636) 63.41 ((12,407 + 154,745)/2,636)