Table 5.

Association between Future System Participation and Treatments, Payments, and Outcomes, 1985–1995

		Dependent Variables
Currently Independent but Will Be of System Type:		Transferred	Catheter within 90 Days	PTCA or CABG within 90 Days	Log 90-Day Payments	90-Day Mortality
<250 Beds	Urban w/local	2.79*	.19	−.96	1.00	1.70**
	big partner	(1.16)	(1.00)	(.68)	(1.73)	(.56)
	Rural w/local		5.03**	3.37*	2.80*	4.51	−.03
	big partner		(1.65)	(1.56)	(1.35)	(2.89)	(1.30)
	Other system	−.79	−.26	−.23	−1.00	−.31
		(.67)	(.55)	(.50)	(1.21)	(.41)
≥250 Beds	Local partner	.16	−.03	−.50	2.35	.14
		(.64)			(.68)	(.60)	(1.45)	(.47)
	Other system	.04	.05	.07	4.12	1.29
		(2.64)	(2.36)	(1.85)	(6.76)	(1.47)

Notes: Coefficients and clustered standard errors reported in percentage points. Nonsystem variables noted in Appendix A and Appendix B, available online at http://www.blackwell-synergy.com, are also included, as are indicator variables for hospitals that remain in systems and hospitals that leave systems. N =1,607,596, except for log 90-day payments, where N =1,604,010.

^*Significant at p≤.05 level;

^**Significant at p≤.01 level.