Bulletin of the World Health Organization

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.