Table 1.
Agreement between adherence by capsule count vs questionnaire by stringent and liberal criteria (N = 1352 patients returning bottles and responding to questionnaires for each analysis)
| Capsule counts |
||||||
|---|---|---|---|---|---|---|
| Stringenta |
Liberalb |
|||||
| Question naife responses | Adherent (%) | Under (%) | Total (%) | Adherent (%) | Under (%) | Total (%) |
| Adherent (%) | 74.9 | 14.7 | 89.6 | 90.8 | 7.1 | 97.9 |
| Under (%) | 6.3 | 4.1 | 10.4 | 1.6 | 0.4 | 2.1 |
| Total (%) | 81.2 | 18.8 | 100.0 | 92.5c | 7.5 | 100.0 |
a
Adherent, ≥85.7%; Cohen's kappa, 0.17; and PABAK, 0.58 (bias index = 0.08, prevalence index = 0.71).
b
Adherent. ≥71.4%; Cohen's kappa, 0.06; and PABAK, 0.83 (bias index = 0.05, prevalence index = 0.90).
c
Total does not sum due to rounding.