Table 3.
Response pattern of the 2 adherence clusters at 12 months.
| Adherence to medication at 12 months | |||||
|---|---|---|---|---|---|
| MARS variable | Response indicating Poor adherence | Predicator importance | Cluster 1 “Poor adherence” N = 170 (35.1%) | Cluster 2 “Good adherence” N = 315 (64.9%) | p value global |
| 1. Do you ever forget to take your medication? | “Yes” | 0.70 | 118 (69.4) | 132 (41.9) | <0.001 |
| 2. Are you careless at times about taking medication? | “Yes” | 0.72 | 101 (59.4) | 104 (33.0) | <0.001 |
| 3. When you feel better do you sometimes stop taking your medication? | “Yes” | 0.63 | 47 (27.6) | 38 (12.1) | <0.001 |
| 4. Sometimes if you feel worse when you take the medicine do you stop taking it | “Yes” | 0.65 | 70 (41.2) | 62 (19.7) | <0.001 |
| 5. I take my medication only when I am sick | “Yes” | 0.58 | 27 (15.9) | 22 (7.0) | 0.002 |
| 6. It is unnatural for my mind and body to be controlled by medication | “Yes” | 0.78 | 106 (62.4) | 139 (44.1) | <0.001 |
| 7. My thoughts are clearer on medication | “No” | 0.67 | 97 (57.1) | 102 (32.4) | <0.001 |
| 8. By staying on medication, I can prevent getting sick | “No” | 0.59 | 40 (23.5) | 52 (16.5) | 0.059 |
| 9. I feel weird like a zombie on medication | “Yes” | 0.73 | 88 (51.8) | 82 (26.0) | <0.001 |
| 10. Medication makes me feel tired and sluggish | “Yes” | 0.70 | 143 (84.1) | 178 (56.5) | <0.001 |
| Total score, mean (sd) | … | … | 5.08 (2.0) | 7.11 (1.9) | <0.001 |
MARS Medication Adherence Rating Scale.
Symbol: … = not applicable.