Table 4. Critical Access Hospital Net Income Per Surgical Specialty Offered.

Per unit of surgical services offered, net income increased by $630,528 (p=0.0032). Net income per surgical specialty offered was also analyzed for each of the co-variates. The “Intercept” parameter is the predicted value for the model when all other parameters are set to zero. The column titled “Parameter Estimate” demonstrated the change in the dependent variable according to every one-unit change per predictor variable while all other predictors are kept constant.

Parameter	Parameter Estimate	Standard Error	P-value
Intercept	-867,084	1,225,606
Number of Surgical Services	630,528	212,294	0.0032
Region (MW vs W)	348,574	462,671	0.8915
Region (NE vs W)	263,872	774,440	0.8915
Region (S vs W)	329,518	497,204	0.8915
Occupancy Rate	15,500	8,111	0.0568
Case Mix Index (CMI)	360,443	1,111,362	0.7457