Table 4 Estimates of several performance measures for different cutoff scores of the Y-ACNAT-NO
Cutoff score (>) a | Sensitivity (95% CI) | Specificity (95% CI) | Positive predictive power (95% CI) | Negative predictive power (95% CI) | Diagnostic odds ratio (95% CI) | NND (95% CI) | NSD (95% CI) | Youden index |
|---|---|---|---|---|---|---|---|---|
> .000 | 1.000 (.984 – 1.000) | .000 (.000 - .003) | .139 (.122 - .156) | - | - | 7.194 (6.410 - 8.197) | - | .000 |
> .047 | .799 (.741 - .849) | .535 (.508 - .561) | .217 (.189 - .246) | .943 (.925 - .958) | 4.567 (3.252 – 6.414) | 4.608 (4.065 - 5.291) | 16.544 (12.333 – 22.810) | .334 |
> .053 | .756 (.695 - .810) | .644 (.618 - .668) | .254 (.222 - .289) | .942 (.926 - .956) | 5.575 (4.047 – 7.680) | 3.937 (3.460 - 4.505) | 16.242 (12.514 – 21.727) | .400 |
> .117 | .677 (.612 - .737) | .758 (.735 - .780) | .311 (.270 - .353) | .936 (.920 - .949) | 6.564 (4.851 – 8.881) | 3.215 (2.833 - 3.704) | 14.625 (11.500 – 18.608) | .435 |
> .128 | .511 (.444 - .577) | .869 (.851 - .886) | .386 (.331 - .444) | .917 (.901 - .931) | 6.942 (5.135 – 9.384) | 2.591 (2.252 - 3.021) | 11.048 (9.101 – 13.493) | .380 |
> .207 | .507 (.440 - .573) | .880 (.862 - .896) | .404 (.347 - .464) | .917 (.901 - .931) | 7.510 (5.539 – 10.182) | 2.475 (2.155 - 2.882) | 11.048 (9.101 – 13.493) | .387 |
> .257 | .454 (.388 - .521) | .911 (.895 - .925) | .450 (.385 - .517) | .912 (.896 - .926) | 8.484 (6.175 – 11.655) | 2.222 (1.934 - 2.597) | 10.364 (8.615 – 12.514) | .365 |
> .292 | .393 (.329 - .460) | .950 (.937 - .961) | .559 (.479 - .637) | .907 (.891 - .921) | 12.320 (8.624 – 17.602) | 1.789 (1.570 - 2.088) | 9.753 (8.174 – 11.658) | .343 |
> .439 | .253 (.198 - .315) | .984 (.976 - .990) | .716 (.604 - .811) | .891 (.875 - .906) | 20.631 (12.409 – 34.302) | 1.397 (1.233 - 1.656) | 8.174 (7.000 – 9.638) | .237 |
> .690 | .087 (.054 - .132) | .997 (.993 - .999) | .833 (.626 - .953) | .872 (.854 - .887) | 33.923 (11.482 – 100.223) | 1.200 (1.049 - 1.597) | 6.813 (5.849 – 7.850) | .084 |
>1.000 | .000 (.000 - .016) | 1.000 (.997 – 1.000) | - | .861 (.844 - .878) | - | - | 6.194 (5.410 – 7.197) | .000 |