At the 5% discount rate and assuming 275 participants, the net costs associated with the intervention were -Can$1,292,444 (savings). Case 'a' in sensitivity analysis resulted in net costs of -Can$5,943,236 (savings); case 'b' had a figure of -Can$2,865,605; case 'c' had figures of - Can$800,000 and -$Can1.8 million at 10% and 1% rates of discount, respectively.