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Table 3 Expenditures per adjusted Discharge – Multivariate regression results

From: Hospital competition, resource allocation and quality of care

  Clinical Hotel Administrative
A: Main effects Coefficient P value Coefficient P value Coefficient P value
HHI – 1982 436** 0.018 151** 0.026 -43 0.636
Change in HHI -676 0.222 -291 0.176 -252 0.405
Case mix – 1983 863*** 0.000 114** 0.026 193*** 0.009
Change in case mix 2483*** 0.000 642*** 0.000 609*** 0.000
For profit 515 0.350 209 0.281 207 0.511
Public -9.8 0.932 -21 0.630 -19 0.738
District 1.3 0.986 11 0.691 18 0.504
Teaching 33 0.665 46* 0.098 95* 0.058
SUM – 1982 ('000) 1.0*** 0.000 -0.02 0.741 0.1 0.213
Change in SUM ('000) 1.7*** 0.002 -0.3 0.849 0.03 0.909
Occupancy – 1982 -3.0 0.214 0.1 0.863 -0.5 0.643
Change in occupancy -0.05 0.985 -0.2 0.826 -1.1 0.340
Bad debt & charity – 1982 1.3 0.874 -1.1 0.492 -3.4 0.195
Change in bad debt & charity 2.7 0.589 -0.1 0.967 -0.6 0.721
Median family income 13.4*** 0.000 4.3*** 0.000 3.7*** 0.008
  Clinical Hotel Administrative
B: For-profit interaction effects Coefficient P value Coefficient P value Coefficient P value
HHI – 1982 -333 0.411 -275* 0.074 -103 0.677
Change in HHI 1014 0.346 -369 0.593 1900** 0.036
Case mix – 1983 -225 0.341 -48 0.609 17 0.899
Change in case mix -506 0.218 -224 0.216 -398* 0.088
Teaching -292 0.145 -235** 0.016 -28 0.783
SUM – 1982 ('000) -0.7 0.392 -0.4 0.275 0.2 0.624
Change in SUM ('000) -2.8 0.130 -0.5 0.475 -0.8 0.341
Occupancy – 1982 -0.8 0.891 2.1 0.336 -4.5 0.221
Change in occupancy -3.9 0.505 1.1 0.669 -10*** 0.001
Bad debt & charity – 1982 -7.9 0.751 -18.4 0.197 24* 0.078
Change in bad debt & charity -46 0.004*** 1.1 0.866 -16* 0.079
Median family income 1.4 0.812 -1.8 0.530 -0.5 0.887
N 322   319   320  
F value 13.5***   4.8***   5.1***  
Adjusted R2 0.51   0.24   0.26  
  1. *Significant at the 0.1 level **Significant at the 0.05 level ***Significant at the 0.01 level