TABLE 7.

Performance of different cutoff points for the USD items

	Cutoff point USD
	≥2		≥3		≥4
	PPV (95%CI)	NPV (95%CI)	PPV (95%CI)	NPV (95%CI)	PPV (95%CI)	NPV (95%CI)
Pain	0.72 (0.68, 0.75)	0.94 (0.92, 0.96)	0.79 (0.75, 0.83)	0.88 (0.86, 0.90)	0.85 (0.81, 0.89)	0.81 (0.78, 0.83)
Sleeping problems	0.67 (0.63, 0.71)	0.95 (0.93, 0.96)	0.74 (0.70, 0.78)	0.90 (0.87, 0.92)	0.83 (0.79, 0.87)	0.84 (0.81, 0.86)
Anorexia	0.52 (0.48, 0.57)	0.90 (0.88, 0.92)	0.59 (0.54, 0.63)	0.89 (0.87, 0.91)	0.64 (0.59, 0.69)	0.87 (0.84, 0.89)
Abnormal stool	0.56 (0.52, 0.60)	0.95 (0.93, 0.97)	0.65 (0.60, 0.70)	0.92 (0.90, 0.94)	0.71 (0.66, 0.76)	0.89 (0.87, 0.91)
Nausea	0.62 (0.56, 0.68)	0.96 (0.95, 0.97)	0.77 (0.70, 0.83)	0.95 (0.93, 0.96)	0.85 (0.77, 0.91)	0.93 (0.91, 0.94)
Dyspnea	0.59 (0.52, 0.65)	0.98 (0.97, 0.99)	0.69 (0.61, 0.76)	0.96 (0.95, 0.97)	0.79 (0.71, 0.86)	0.95 (0.93, 0.96)
Fatigue	0.77 (0.74, 0.80)	0.93 (0.90, 0.95)	0.83 (0.80, 0.86)	0.84 (0.81, 0.87)	0.89 (0.87, 0.92)	0.75 (0.71, 0.78)
Anxiety	0.64 (0.60, 0.69)	0.92 (0.90, 0.93)	0.76 (0.71, 0.80)	0.88 (0.86, 0.90)	0.80 (0.75, 0.85)	0.84 (0.81, 0.86)
Depressed mood	0.55 (0.50, 0.60)	0.94 (0.92, 0.96)	0.68 (0.62, 0.73)	0.90 (0.88, 0.92)	0.79 (0.73, 0.84)	0.87 (0.85, 0.89)

Abbreviations: CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value.