Table 4.
Correlation Matrix for the Different Scales Used to Test BMQ, BIPQ, and MARS. Pearson Correlation Coefficient (p-value)
| 1 | 2 | 3 | 4 | 5 | 6 | |
|---|---|---|---|---|---|---|
| 1. Specific Necessity | 1 | |||||
| 2. Specific Concern | 0.147* | 1 | ||||
| 3. General Overuse | 0.188** | 0.438** | 1 | |||
| 4. General Harm | −0.058 | 0.382** | 0.492** | 1 | ||
| 5. BIPQ (overall score) | 0.050 | 0.305** | 0.215** | 0.174** | 1 | |
| 6. MARS | −0.069 | −0.317** | −0.404** | −0.368** | −0.278** | 1 |
Notes: 1–4: Beliefs about Medicines Questionnaire (BMQ) dimensions 1 to 4. **Correlation is significant at the 0.01 level (2-tailed). *Correlation is significant at the 0.05 level (2-tailed).
Abbreviations: BIPQ, Brief Illness Perception Questionnaire; MARS: Medication Adherence Self Report Scale.