Sensitivity analyses
A Monte Carlo probabilistic sensitivity analysis was performed using Oracle's Crystal Ball software (Overtime and OOP expenses for frontline workers (PKs): The estimate of overtime includes labour and travel time that was not reimbursed during the salaried work week. PK overtime varied by geographical location and by which treatment arm they supported with their activities. Variation in overtime by treatment arm was due to the additive design of the intervention. For example, Arm 4 involves more programme activities than Arm 2 or 3. The geographical spread of intervention households and the frontline workers' ability to afford transportation costs also affected their time investments. Variations in frontline worker overtime and OOP expenses were simulated using the means and standard deviations from actual data collected from the sample of PKs converted into shape and scale parameters for the gamma distribution.Beneficiary opportunity costs: Beneficiary participation in the programme was estimated using process evaluation data on the amount of time spent on TRAIN activities. The baseline survey provided local wage rates for men and women. The sensitivity analysis varied opportunity costs separately for men and women using means and standard deviations from the process evaluation and assumes a gamma distribution (Table 