Table 2.

(continued):Adjusted relationship between competition level ^* and costs per discharge–cost-based diagnoses

	Costs per Discharge
	Asthma		Cholelithiasis
Variable	HC	LC	HC	LC
Hospital ownership
Public (no=0)	8,196c	10,621c	3,762a	9,063
NFP (no=0)	4,643c	466	4,048b	17,135b
FP
Hospital level
Medical center (no=0)	17,287c	16,027c	34,447c	30,436c
Regional hospital (no=0)	9,532c	8,720c	23,484c	11,894c
District hospital
Percent crossover patients	1,876	2,824c	–5,785	3,184
Patient's gender
Male (no=0)	−313	265	1,340	1,166
Female
Patient's age	318c	173	344c	440c
Number of comorbidities
0
1 (no=0)	−663	−1,811	1,840	−3,879
2 (no=0)	433	−1,532	5,115c	−1,484
3+ (no=0)	18,704c	4,429b	22,907c	9,592b
Constant	−9,732	−136	−2,353	−7,564
N	14,968	3,515	17,075	1,689
R-square	0.106	0.069	0.085	0.103

^ap<0.05;

^bp<0.01;

^cp<0.001;

^*HC=highest competition quartile (lowest HHI quartile); LC=lowest competition quartile (highest HHI quartile).