Table 3 OLS results by payment model; outcome variable = % inappropriate laboratory tests

% OLIS Penetration

−0.0818^a

0.0097

−0.0276^a

 EFFS

0.0122

−0.0067

−0.0064

 BC

0.0082

0.0034

−0.0089^c

 IBC

−0.0118

−0.0059

−0.0178^a

 EFFS x % OLIS Penetration

−0.0734^a

−0.0109

0.0019

 BC x % OLIS Penetration

−0.0340

−0.0322

0.0103

 IBC x % OLIS Penetration

0.0291

0.0034

0.0346^a

 Average patient age

−0.0041^a

0.0004^a

−0.0003^a

 Average percentage of male patients

−0.0301^a

−0.0330^a

−0.0044

 Average patient complexity

0.0035^a

0.0085^a

0.0045^a

 Sex of physician (=1 if male; =0 if female)

0.0053^a

−0.0016^c

0.0002

 Physician age

−0.0001^b

−0.0003^a

0.0001^a

 Constant

0.3201^a

0.0242^a

0.0290^a

 Number of physicians

8291

8379

8013

 R²

0.513

0.298

0.118