Table 3.

Determinants of physician‐industry transfers by broad specialty 2014‐2016

	All specialties		Primary care		Medical specialists		Surgical specialists
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
	Prob.	ln ($)	Prob.	ln ($)	Prob.	ln ($)	Prob.	ln ($)
	Coeff.	Coeff.	Coeff.	Coeff.	Coeff.	Coeff.	Coeff.	Coeff.
	(SE)	(SE)	(SE)	(SE)	(SE)	(SE)	(SE)	(SE)
Male	0.034***	0.271***	0.031***	0.223***	0.032***	0.400***	0.033***	0.106***
	(0.001)	(0.007)	(0.002)	(0.010)	(0.002)	(0.013)	(0.003)	(0.013)
ln(Medicare RVUs +1)	0.031***	0.112***	0.032***	0.139***	0.028***	0.095***	0.032***	0.082***
	(0.000)	(0.001)	(0.000)	(0.002)	(0.000)	(0.003)	(0.001)	(0.003)
Office‐based	0.119***	0.431***	0.159***	0.750***	0.088***	0.312***	0.078***	0.038***
	(0.001)	(0.007)	(0.002)	(0.011)	(0.002)	(0.013)	(0.003)	(0.013)
Year 2015	−0.029***	−0.029***	−0.024***	−0.032***	−0.021***	0.040***	−0.045***	−0.120***
	(0.001)	(0.003)	(0.001)	(0.005)	(0.001)	(0.005)	(0.002)	(0.006)
Year 2016	−0.082***	−0.227***	−0.072***	−0.167***	−0.076***	−0.202***	−0.103***	−0.360***
	(0.001)	(0.003)	(0.001)	(0.005)	(0.001)	(0.006)	(0.002)	(0.007)
Practice size
2 to 3 members	0.060***	0.213***	0.047***	0.221***	0.050***	0.298***	0.097***	0.137***
	(0.002)	(0.011)	(0.004)	(0.018)	(0.004)	(0.022)	(0.005)	(0.018)
4 to 10 members	0.057***	0.194***	0.025***	0.179***	0.045***	0.255***	0.118***	0.214***
	(0.002)	(0.010)	(0.004)	(0.017)	(0.003)	(0.019)	(0.004)	(0.016)
11 to 20 members	0.019***	0.043***	−0.028***	−0.111***	0.020***	0.128***	0.080***	0.178***
	(0.003)	(0.013)	(0.005)	(0.021)	(0.004)	(0.023)	(0.005)	(0.020)
21 to 50 members	−0.006**	0.009	−0.049***	−0.104***	0.010***	0.060***	0.041***	0.188***
	(0.002)	(0.012)	(0.004)	(0.018)	(0.004)	(0.022)	(0.005)	(0.020)
51 to 100 members	−0.012***	0.035***	−0.051***	−0.035*	−0.006	0.068***	0.042***	0.165***
	(0.003)	(0.013)	(0.004)	(0.020)	(0.004)	(0.025)	(0.005)	(0.023)
100+ members	−0.104***	−0.052***	−0.144***	−0.220***	−0.098***	0.050***	−0.056***	0.080***
	(0.002)	(0.010)	(0.003)	(0.015)	(0.003)	(0.019)	(0.004)	(0.017)
Years in practice
11‐19 yr	0.027***	0.142***	0.034***	0.064***	0.017***	0.225***	0.000	0.090***
	(0.002)	(0.009)	(0.003)	(0.013)	(0.003)	(0.017)	(0.004)	(0.015)
20‐29 yr	0.038***	0.240***	0.055***	0.191***	0.027***	0.318***	−0.013***	0.129***
	(0.002)	(0.009)	(0.003)	(0.014)	(0.003)	(0.018)	(0.004)	(0.015)
30+ yr	0.014***	0.103***	0.054***	0.124***	0.005*	0.114***	−0.064***	−0.011
	(0.002)	(0.009)	(0.003)	(0.015)	(0.003)	(0.018)	(0.004)	(0.015)
Constant	0.282***	4.163***	0.256***	3.786***	0.473***	4.392***	0.503***	4.287***
	(0.004)	(0.017)	(0.005)	(0.024)	(0.006)	(0.034)	(0.006)	(0.026)
R‐Squared	0.214	0.181	0.194	0.14	0.282	0.143	0.198	0.162
N	1 227 123	694 169	474 738	260 532	442 617	262 468	309 768	171 169

Notes: ***P < 0.01, **P < 0.05, *P < 0.1. Estimated using Ordinary Least Squares Multiple Regression with physician clustering using Stata 15. Each model was estimated with county fixed effects and a full set of specialty fixed effects (not reported). Primary Care includes: Family Practice, General Practice, Geriatric Medicine, Internal Medicine, Pediatric Medicine. Medical Specialists include: Allergy/Immunology, Cardiac Electrophysiology, Cardiology, Critical Care (Intensivists), Dermatology, Emergency Medicine, Endocrinology, Gastroenterology, Hematology/Oncology, Infectious Disease, Interventional Radiology, Medical Oncology, Nephrology, Neurology, Nuclear Medicine, Osteopathic Manipulative Medicine, Pain Management, Pathology, Preventive Medicine, Psychiatry, Pulmonary Disease, Radiation Oncology, Rheumatology, Sports Medicine. Surgical Specialists include: Cardiac Surgery, Colorectal Surgery (formerly proctology), General Surgery, Gynecological/Oncology, Hand Surgery, Maxillofacial Surgery, Neurosurgery, Obstetrics/Gynecology, Ophthalmology, Orthopedic Surgery, Otolaryngology, Plastic and Reconstructive Surgery, Surgical Oncology, Thoracic Surgery, Urology, Vascular Surgery.