Table 3.
Refill adherence to oral hypoglycemics: differences between adherent and nonadherent patients
| Bivariate analyses | Multilevel logistic analysis (multivariate; 0 = adherent; 1 = nonadherent) | |||
| Nonadherent patients | Adherent patients | Oddsratioa) | 95% CI | |
| Socio-demographic characteristics | ||||
| - age in years (mean; SD) | 66.6 (13.4) | 65.8 (11.9) | 1.01 | [0.99–1.03] |
| - % woman | 59.2 | 52.9 | 1.22 | [0.82–1.82] |
| - % college/university | 6.6 | 8.4 | 0.85 | [0.40–1.82] |
| - % non-western | 9.9 | 7.1 | 1.49 | [0.76–2.91] |
| - % private insurance | 19.7 | 23.9 | 0.75 | [0.47–1.22] |
| - % living together | 63.8* | 73.5 | 0.65* | [0.43–0.97] |
| - % with job/study | 19.1 | 17.9 | 1.68 | [0.94–3.00] |
| Use of medication | ||||
| Complex regime | ||||
| number of other ATCs (mean;sd) | 8.4 (6.0) | 7.5 (5.3) | 1.04 | [0.99–1.08] |
| Health & morbidity in general practice | ||||
| Self-reported health | ||||
| % excellent/good | 36.2 | 44.0* | 0.75 | [0.51–1.11] |
| Diagnoses for which GP is consulted (% of patients) | ||||
| Diabetes (T90) | 84.2 | 88.2 | 0.69 | [0.41–1.17] |
| Hypertension (K85–K87) | 28.9 | 32.7 | 0.77 | [0.51–1.17] |
| Other diagnoses in K-chapter (from K70–K99) | 21.1 | 25.8 | 0.60* | [0.37–0.98] |
| Hypercholesterolemia (T93) | 11.2 | 11.9 | 0.96 | [0.52–1.77] |
| GP consultation for chronic diseases and overall contact | ||||
| Number of other chronic complaints (mean, SD) | 0.7 (0.9) | 0.7 (1.0) | 0.87 | [0.70–1.07] |
| Number of contacts with GP (mean; SD) | 12.7 (10.8) | 12.3 (9.9) | 1.01 | [0.98–1.03] |
| Total (%) | 6.9 | |||
| Number of patients (N) | 152 | 2,042 | 2,194 | |
* P < 0.05
a) odds ratio > 1: more likely to be nonadherent; odds ratio < 1: less likely to be nonadherent