4. Estimated total dollar value of intervention programmes at each HMO1.
| Intervention | Total expenditure on drugs evaluated in the study (USD) |
Cost of intervention (USD) |
Change in expenditure2 | ||
| Before the intervention | After the intervention | USD | Per cent | ||
| Regulation of drug reimbursement (HMO A) | 190,923 | 148,698 | 5040 | −37,185 | −19.5 |
| Educational materials on prescribing for physicians and clients (HMO B) | 1,136,586 | 1,230,056 | 5517 | 98,987 | 8.7 |
| Educational materials on prescribing for physicians (HMO C) | 2,000,570 | 2,100,285 | 7539 | 107,254 | 5.4 |
| No intervention (HMO D) | 1,644,460 | 1,712,996 | NA | 68,536 | 4.2 |
1This table is from Benedetto 2000, p1784
2 Change in expenditure was calculated by adding the total cost in the postintervention period to the cost of the intervention, and then subtracting the total cost of the study drugs during the pre‐intervention period