The effect of a mystery shopper scheme on prescribing behavior in primary care: Results from a field experiment

Health Economics Review

Table 15 Robustness of average intervention effects on physician prescribing, audit 1

	clustering 1	clustering 2	clustering 3	clustering 4
Panel A: Prescribing pattern
Antibiotics	0.580^*	0.580^*	0.580^***	0.580^*
	(0.313)	(0.306)	(0.216)	(0.309)
Other Rx	-1.967^***	-1.967^***	-1.967^***	-1.967^***
	(0.485)	(0.450)	(0.596)	(0.446)
OTC	1.589^***	1.589^***	1.589^***	1.589^***
	(0.440)	(0.304)	(0.341)	(0.292)
Alternatives	-3.455^***	-3.455^***	-3.455^***	-3.455^***
	(0.302)	(0.376)	(0.378)	(0.441)
Panel B: Average intervention effects
Average intervention effect	0.041	1.073	0.976	0.939
	(0.070)	(0.101)	(0.232)	(0.231)
Number of observations	768	768	768	768
Log-Likelihood	-155.2	-155.2	-155.2	-155.2
Pseudo R²	0.417	0.417	0.417	0.417

Other Rx: Other prescription drugs; OTC: Over-the-counter drugs; Alternatives: Alternative and nonpharmacological treatments. Estimated odds ratios are presented with standard errors in parentheses. The standard errors are adjusted for clustering on groups following four clustering criteria.
^* (p<0.1), ^** (p<0.05), ^*** (p<0.01)

ISSN: 2191-1991