Table 3 Odds ratios (OR) and 95% confidence intervals (CI) for use of polypharmacy (4 or more regular prescription medicines) according to resource utilisation band (RUB).
From: Validating the Johns Hopkins ACG Case-Mix System of the elderly in Swedish primary health care
RUB | OR | model A 95%CI n = 1144 | OR | model B 95%CI n = 1144 | OR | model C 95%CI n = 1144 | OR | model D 95%CI n = 1144 |
|---|---|---|---|---|---|---|---|---|
0 | 1.0 | 1.0 | 1.0 | 1.0 | ||||
1 | 0.9 | 0.4–1.8 | 0.9 | 0.4–1.7 | 0.9 | 0.5–1.9 | 1.0 | 0.5–2.1 |
2 | 1.2 | 0.8–1.9 | 1.2 | 0.8–1.9 | 1.3 | 0.8–2.1 | 1.3 | 0.8–2.1 |
3 | 3.0*** | 2.1–4.4 | 3.0*** | 2.0–4.4 | 3.3*** | 2.2–4.9 | 3.0*** | 2.0–4.6 |
4 | 6.8*** | 3.5–13.5 | 6.7*** | 3.4–13.2 | 8.2*** | 4.0–16.8 | 6.5*** | 3.1–13.6 |
5 | 6.4* | 1.2–35.2 | 7.0* | 1.2–39.6 | 7.8* | 1.5–41.0 | 4.8 | 1.1–21.3 |