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Table 16 Robustness of average intervention effects on physician prescribing, audit 2

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

  clustering 1 clustering 2 clustering 3 clustering 4
Panel A: Prescribing pattern
Antibiotics 0.630*** 0.630*** 0.630*** 0.630***
  (0.069) (0.197) (0.151) (0.180)
Other Rx -1.481*** -1.481*** -1.481*** -1.481***
  (0.117) (0.294) (0.132) (0.277)
OTC 1.551*** 1.551*** 1.551*** 1.551***
  (0.080) (0.269) (0.117) (0.295)
Alternatives -2.418*** -2.418*** -2.418*** -2.418***
  (0.353) (0.531) (0.350) (0.466)
Panel B: Average intervention effects
Average intervention effect -0.214** -0.214*** -0.214** -0.214**
  (0.086) (0.077) (0.091) (0.085)
Number of observations 752 752 752 752
Log-Likelihood -175.4 -175.4 -175.4 -175.4
Pseudo R2 0.327 0.327 0.327 0.327
  1. 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. Clustering 2 is applied in the models in the main paper
  2. * p<0.1, ** p<0.05, *** p<0.01
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