Table 1. Price Difference of Medicines Sold to SPs From the MRP, Number of Medicines Received, and Expenditure Per Encounter (Rupees) for Chain and Independent Pharmacies (Rupees) .

	Diarrhoea Case			TB Case
	Chains	Independents	P Value	Chains	Independents	P Value
Mean price difference (SD)	-0.90 (2.34)	-0.15 (1.71)	.005	0.03 (6.04)	1.44 (6.67)	.097
Median price difference (IQR)	0 (-1.87 to 0.46)	0 (0 to 0.33)	.316	0 (-0.87 to 0.60)	0.2 (0 to 1.12)	.059
Mean number of medicines received	1.21	1.22	.886	1.37	1.51	.171
Mean expenditure (SD)	27.5 (18.3)	35.6 (22.1)	.011	46.4 (26.8)	42.7 (38.5)	.473
Median expenditure (IQR)	19 (13 to 37)	38 (18 to 47)	.002	49.5 (20 to 64)	29 (11 to 64)	.226

Abbreviations: SPs, standardised patients; MRP, maximum retail price; TB, tuberculosis SD, standard deviation; IQR, interquartile range.

Price difference = price paid - MRP.