Table 1 D1 model recalculation, tariff, and variance inflation factors (VIFs)
From: A critical re-evaluation of the regression model specification in the US D1 EQ-5D value function
D1o | D1c | ||||
|---|---|---|---|---|---|
Parameter | Coeff. (SE) | VIF | Recalculation | Coeff. (SE) | VIF |
Constant | N/A | N/A | -D1 | -.140 (.010) | N/A |
D1 | .140 (.010) | 113.184 | D1-D1 | N/A | N/A |
M2 | -.146 (.008) | 5.336 | M2+D1 | *-.006 (.006) | 1.913 |
S2 | -.175 (.008) | 5.336 | S2+D1 | -.035 (.007) | 1.913 |
U2 | -.140 (.008) | 5.336 | U2+D1 | *-.000 (.006) | 1.913 |
P2 | -.173 (.008) | 5.336 | P2+D1 | -.032 (.007) | 1.913 |
A2 | -.156 (.008) | 5.336 | A2+D1 | -.016 (.007) | 1.913 |
M3 | -.558 (.016) | 5.038 | M3+D1 | -.418 (.012) | 3.591 |
S3 | -.471 (.016) | 5.038 | S3+D1 | -.331 (.013) | 3.591 |
U3 | -.374 (.013) | 5.038 | U3+D1 | -.234 (.010) | 3.591 |
P3 | -.537 (.020) | 5.038 | P3+D1 | -.397 (.015) | 3.591 |
A3 | -.450 (.015) | 5.038 | A3+D1 | -.310 (.012) | 3.591 |
I3 | .122 (.018) | 38.529 | I3 | .122 (.014) | 21.211 |
I2 squared | -.011 (.002) | 5.384 | I22 | -.011 (.002) | 3.893 |
I3 squared | .015 (.003) | 9.773 | I32 | .015 (.003) | 7.066 |