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Table 2 Regression-based decomposition of real hospital net revenue growth between 2001 and 2007

From: Decomposition of the drivers of the U.S. hospital spending growth, 2001–2009

  Revenue Utilization Unit-Payment
  Log of real hospital net revenue Log of adjusted days Real hospital net revenue per adjusted day
Overall       
2001 $18.31   11.14   $1,378  
2007 $18.72   11.21   $1,965  
Difference + 41 100% 7 100% $587 100%
Explained 18 44% 4 57% $173 30%
Unexplained 23 56% 3 43% $413 70%
Decomposition       
Explained 18 100% 4.0 100% $173 100%
     Staffing and labor-related costs 12.1** 67% 3.3** 83% $108** 62%
     Technology 0.1 1% -0.8** -20% $17** 10%
     Market competition -0.8** -4% 0.2 5% -$16** -9%%
     Hospital char 0.8** 4% 0.5* 13% $2 1%
     Casemix and demographics 4.8** 27% 0.6 15% $52** 30%
     Payer mix 0.8** 4% 0.4 10% $9** 5%
  1. +Expressed in percentage points except for the column of unit-payment.
  2. **Indicates the predicted growth for that category is statistically significant at .01 level and * at .05 level.