Table 5

Prognostic performance of the three risk screening approaches for 12-month mortality

High risk, n (%)SensitivitySpecificityPPVNPVAccuracy
1-step (SQ only)269 (52)90.2 (82.2–95.4)55.8 (50.9–60.6)30.9 (28.2–33.6)96.3 (93.3–98.0)62.0 (57.6–66.2)
2-step191 (37)78.3 (68.4–86.2)71.7 (67.2–76.0)37.7 (33.4–42.2)93.8 (91.1–95.7)72.9 (68.8–76.7)
3-step124 (24)65.2 (54.6–74.9)84.8 (81.0–88.1)48.4 (41.7–55.1)91.8 (89.4–93.7)81.3 (77.6–84.6)
  • NPV, negative predictive value; PPV, positive predictive value.