Table 3.
Mean costs and mean cost differences for policies of less tight control of blood pressure and tight control of blood pressure by category of cost (1997 values, undiscounted unless stated otherwise)
| Item | Mean (SD) cost per patient (£)
|
Mean (95% CI) cost difference per patient (£)* | |
|---|---|---|---|
| Less tight control | Tight control | ||
| Costs of treatment | |||
| Antihypertensive drugs | 608 (661) | 1221 (929) | 613 (520 to 706) |
| Antidiabetic drugs | 1189 (1471) | 1312 (1663) | 122 (−68 to 311) |
| Other drugs | 43 (61) | 41 (57) | −2 (−10 to 5) |
| Clinic visits | 1664 (658) | 1671 (650) | 7 (−73 to 87) |
| Total | 3505 (1894) | 4245 (2188) | 740 (495 to 984) |
| Costs of complications | |||
| Hospital inpatient | 3603 (7608) | 2930 (6604) | −674 (−1564 to 217) |
| Non-inpatient | 1304 (647) | 1301 (606) | −3 (−81 to 74) |
| Specific treatment for eye and renal disease | 672 (6398) | 400 (7516) | −272 (−1104 to 559) |
| Total | 5580 (10 797) | 4630 (10 579) | −949 (−2261 to 363) |
| Total costs of treatment and complications | |||
| Undiscounted | 9085 (11 361) | 8875 (10 995) | −209 (−1584 to 1165) |
| 6% discount | 7156 (8620) | 7081 (8550) | −74 (−1126 to 977) |
| 3% discount | 8024 (9839) | 7891 (9642) | −133 (−1329 to 1062) |
| Total costs of treatment and complications in standard practice | |||
| Undiscounted | 7869 (11 285) | 8048 (10 929) | 178 (−1187 to 1544) |
| 6% discount | 6145 (8572) | 6381 (8506) | 237 (−809 to 1282) |
| 3% discount | 6920 (9779) | 7132 (9589) | 212 (−976 to 1401) |
*
Negative cost differences indicate cost savings associated with tight blood pressure control policy.