Economic evaluation of a task-shifting intervention for common mental disorders in India
Christine Buttorff, Rebecca S Hock, Helen A Weiss, Smita Naik, Ricardo Araya, Betty R Kirkwood, Daniel Chisholm & Vikram Patel
Volume 90, Number 11, November 2012, 813-821
Table 2. Between-arm difference in annual costs, per subject in public facilities, and health outcomes, Goa, India, 2009
| Parameter | Control arm | Intervention arm | Differencea |
|---|---|---|---|
| Mean cost in US$b (95% CI) | |||
| Health system | 88 (78 to 100) | 88 (73 to 109) | 0.5 (−19 to 22) |
| Time | 136 (122 to 151) | 91 (79 to 104) | −45 (−65 to −27) |
| Total | 225 (204 to 247) | 179 (154 to 208) | −46 (−79 to −12) |
| Mean outcome (95% CI)c | |||
| Psychiatric symptom scored | 32.03 (31.63 to 32.45) | 35.87 (35.49 to 36.23) | 3.84 (3.29 to 4.38) |
| Quality-adjusted life years | 0.82 (0.81 to 0.83) | 0.84 (0.84 to 0.85) | 0.02 (0.01 to 0.03) |
| Complete or partial days worked | 197 (187.7 to 206.8) | 259.54 (251.75 to 267.28) | 62.2 (49.6 to 75.0) |
| Incremental cost–effectivenesse | |||
| In terms of health system costs | – | More costly, more effective | – |
| In terms of total costs | – | Less costly, more effective | – |
CI, confidence interval; US$, United States dollars.
a The value for the control arm subtracted from the corresponding value for the intervention arm.
b Exchange rate: 46.5 Indian rupees = US$ 1.
c Adjusted for baseline symptom scores.
d Evaluated using the Revised Clinical Interview Schedule, the scale of which was inverted for ease of inference for the incremental cost effectiveness ratios.24
e The same trends were seen when each of the three outcomes was considered separately.