Table 2 Analysis of quantitative outcomes
Outcomes | Measure of outcomes (intervention versus control arm) | Statistical analysis |
|---|---|---|
Treatment success | Proportion of patients with treatment success at six months. Odds ratio of treatment success | Logistic regression, odds ratios |
Cure rates | Proportion of patients cured of TB; odds ratio of TB cure | Logistic regression, odds ratios |
Treatment completion | Treatment completion rate; odds ratio of treatment completion | Logistic regression, odds ratios |
Retention in care | Hazards of attrition in the intervention versus control; Cumulative attrition at six months | Cox’s proportional hazards model, log-rank test |
Adherence to TB medicines | Mean adherence rates (proportion of TB medicines) | Mann-Whitney U test and Poisson regression |
Appointment keeping and punctuality | Proportion of patients who keep an appointment; Proportion of patients with early, prompt, and late visits | Ordered logistic regression |
Drug-resistant TB rates | Proportion of patients with rifampicin-resistant TB | Logistic regression, odds ratios |
Call success rates (2,4, and 6 months) | Proportion of successful calls | t test |