Table 1.

Importance of attributes and part-worth utilities of levels.

Attribute	Importance (%)	Level (part-worth utility)
Type	3.0	Diagnostics (0.123) Treatment planning (–0.123)
Explanation	27.3	Equally explainable as physician’s decision (1.106) Not as explainable as physician’s decision (–0.270) No explanation available (–0.836)
Performance	6.6	System decision significantly better than physician’s (0.267) System decision somewhat better than physician’s (0.052) System decision equally good as physician’s (–0.319)
Responsibility	46.8	Physician responsible for decision (1.900) System responsible for decision (–1.900)
Discrimination	14.8	System tested for biased decisions (0.602) System not been tested for biased decisions (–0.602)
Severity of disease	1.5	System use only when less severe disease (0.060) System use both when less severe and when very severe disease (–0.060)