Table 1.
Variable | Coding | Effect on Percentage of Feeding Tubes |
---|---|---|
Case mix introduction | − 0.300* | |
Medicaid rate | Consumer Price Index adjusted, centered at $112 with $10 increment | −0.055† |
% Medicare | Centered at 10% (mean) | 0.036* |
Activity of daily living acuity index | Centered at 10 (mean) | 0.943* |
Percentage of residents undergoing rehabilitation | Centered at 16% (mean) | 0.006* |
County wage index | Centered at 0.96 (mean) | − 0.202 |
Year (1993 reference) | ||
1994 | 0.269* | |
1995 | 0.680* | |
1996 | 1.252* | |
1997 | 1.469* | |
1998 | 1.900* | |
1999 | 2.067* | |
2000 | 2.006* | |
2001 | 1.794* | |
2002 | 1.519* | |
2003 | 1.357* | |
2004 | 1.149* | |
Intercept | 5.770* |
Note: The interpretation of beta coefficients is the absolute difference in the mean rate of feeding tubes per unit change in a covariate or in comparison to the reference category, and robust standard errors were applied to adjust for clustering of surveys within facility.
P<.01;
.05.