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Analysis of the correlation between the number of medications and adverse drug reactions.
| Number of medications | Occurrence of ADR | χ2 | P | |
|---|---|---|---|---|
| Yes | No | |||
| 1 to 4 types | 10 (25.00%) | 230 (64.07%) | 28.459 | <.001 |
| 5 to 9 types | 22 (55.00%) | 119 (33.15%) | ||
| >10 types | 8 (20.00%) | 10 (2.79%) | ||
