Research Article
Arthroplasty Utilization in the United States is Predicted by Age-Specific Population Groups
Table 3
(a) Regression Analysis—hip arthroplasty. Formula: (procedure incidence = coefficient(
) + intercept). (b) Regression analysis—knee arthroplasty. Formula: (procedure incidence = coefficient(
) + intercept).
| (a) |
| | Coefficient | Intercept | -squared |
| | Population total | | | 0.933 | | Population > 64 years | | | 0.969 | | Population > 84 years | | | 0.945 |
|
|
Standard error.
|
| (b) |
| | Coefficient | Intercept | -squared |
| | Population total | | | 0.868 | | Population > 64 years | | | 0.944 | | Population > 84 years | | | 0.901 |
|
|
Standard error.
|
