Control under times of uncertainty: the relationship between hospital competition and physician-patient disputes

Table 2 regression results

Variables	Probability (Dispute)
	(1)	(2)	(3)	(4)	(5)	(6)
	RE	FE	RE	FE	RE	FE
HHI (15 miles radius)	−0.009	1.675***	−0.101	1.503***	0.081	1.314***
HHI (15 miles radius)	(0.121)	(0.348)	(0.096)	(0.346)	(0.128)	(0.346)
HHI square (15 miles radius)	0.115	−0.992***	0.073	−0.842***	−0.053	−0.701**
HHI square (15 miles radius)	(0.131)	(0.304)	(0.110)	(0.302)	(0.129)	(0.302)
Whether the hospital is public (Yes = 1)			0.117***		0.110***
Whether the hospital is public (Yes = 1)			(0.023)		(0.023)
Whether the hospital is profit (Yes = 1)			−0.003		−0.001
Whether the hospital is profit (Yes = 1)			(0.019)		(0.019)
Hospital rank
Secondary (Yes = 1)			0.340***	−0.071	0.297***	−0.046
Secondary (Yes = 1)			(0.030)	(0.058)	(0.031)	(0.057)
Tertiary (Yes = 1)			0.568***	−0.141*	0.381***	−0.061
Tertiary (Yes = 1)			(0.030)	(0.073)	(0.056)	(0.075)
Whether the hospital is comprehensive hospital (Yes = 1)			0.021		0.013
Whether the hospital is comprehensive hospital (Yes = 1)			(0.015)		(0.015)
Total number of hospital beds					0.000***	−0.000**
Total number of hospital beds					(0.000)	(0.000)
Total number of visits (10,000)					0.001	0.003**
Total number of visits (10,000)					(0.001)	(0.001)
Total population (10,000)					−0.000	−0.004***
Total population (10,000)					(0.000)	(0.001)
Urban population ratio (%)					−0.000	−0.013***
Urban population ratio (%)					(0.000)	(0.002)
GDP per capita (Yuan)					0.000***	0.000*
GDP per capita (Yuan)					(0.000)	(0.000)
Year dummies	No	No	Yes	Yes	Yes	Yes
N	6262	6262	6262	6262	6262	6262
Hausman test results (p-value)	<0.001		<0.001		<0.001

(1) Robust standard errors in parentheses; (2) ***p < 0.01, **p < 0.05, *p < 0.1; (3) RE denotes random-effect model, and FE fixed-effect model

ISSN: 1475-9276