Table 9: Distribution of patients by Test_a value and usage of prescribed drugs.
| Usage of prescribed drugs | |||
| Test_a value | NO | YES | N. |
| 0 | 39.10% | 60.90% | 192 |
| 1 | 35.10% | 64.90% | 191 |
| 2 | 32.90% | 67.10% | 213 |
| 3 | 33.30% | 66.70% | 255 |
| 4 | 23.30% | 76.70% | 287 |
| 5 | 20.70% | 79.30% | 271 |
| 6 | 20.70% | 79.30% | 299 |
| 7 | 14.10% | 85.90% | 263 |
| 8 | 6.10% | 93.90% | 214 |
| 9 | 12.20% | 87.80% | 164 |
| 10 | 7.30% | 92.70% | 151 |
| Total | 22.50% | 77.50% | 2500 |
Significant χ2 Test of the association between the two variables at P-value = 0.000.