Table 3.

Goodness-of-fit results for mapping from I-QOL score to AQoL-8D utility score

	Mean AQoL-8D (1)	Min AQoL-8D (2)	Max AQoL-8D (3)	MAE (4)	RMSE (5)
Observed	0.6176	0.1331	0.9888	―	―
Method 1: OLS
Model 1	0.6176	0.3092	0.7430	0.1463	0.1808
Model 2	0.6176	0.2854	0.7243	0.1472	0.1806
Method 2: MM-estimator
Model 1	0.6185	0.2844	0.7543	0.1465	0.1810
Model 2	0.6231	0.2644	0.7079	0.1479	0.1831
Method 3: GLM †
Model 1	0.6176	0.3516	0.7591	0.1463	0.1804
Model 2	0.6174	0.3254	0.7387	0.1461	0.1795

MAE: mean absolute error; RMSE: root mean squared error.

^†The Gaussian family with log link was used.