Table 9.
Logistic Regression Analysis of the Association Between Different Levels of Adherence and the Risk of ARF Recurrence (Case–Crossover Analysis, 58 Cases)
| Definition of Nonadherence | OR of Nonadherent People Having an ARF Recurrence Compared With Adherent People (95% CI) | P Value | “Adherent” People in Case Window (n) |
|---|---|---|---|
| Percent adherence <90% | n/a | n/a | 0 |
| Percent adherence <80% | 3.31 (1.09–10.07) | 0.035* | 5 |
| Percent adherence <70% | 5.02 (1.68–15.03) | 0.004* | 12 |
| Percent adherence <60% | 3.89 (1.44–10.49) | 0.007* | 16 |
| Percent adherence <50% | 2.68 (1.16–6.20) | 0.021* | 23 |
| Percent adherence <40% | 2.38 (1.04–5.43) | 0.040* | 31 |
| Percent adherence <30% | 1.59 (0.66–3.85) | 0.305 | 41 |
ARF indicates acute rheumatic fever; n/a, not applicable; OR, odds ratio.
*
Statistically significant result (P<0.05).