Table 2. Number of unique drug regimens per 100 subjects taking a given number of medications.
| Unique drug regimens per 100 subjects | ||
|---|---|---|
| Number of medications | adults | elderly |
| 0 | 1 | 1 |
| 1 | 26 | 53 |
| 2 | 84 | 90 |
| 3 | 98 | 98 |
| 4 | 99 | 99 |
| 5 or more | 100 | 100 |
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