Table 4.
AUDIT and AUDIT-C cutoff score analysis in the overall sample and by gender.
| Overall Sample | Males | Females | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | Sensitivity | Specificity | J | PPV | NPV | Sensitivity | Specificity | J | PPV | NPV | Sensitivity | Specificity | J | PPV | NPV |
| AUDIT | |||||||||||||||
| 1 | 1.000 | .017 | .017 | .402 | 1.000 | 1.000 | .015 | .015 | .421 | 1.000 | 1.000 | .019 | .019 | .389 | 1.000 |
| 2 | .967 | .226 | .193 | .452 | .912 | .980 | .149 | .129 | .452 | .912 | .960 | .259 | .219 | .447 | .912 |
| 3 | .934 | .422 | .356 | .517 | .906 | .980 | .299 | .279 | .500 | .954 | .911 | .475 | .386 | .520 | .895 |
| 4 | .836 | .613 | .449 | .588 | .850 | .900 | .522 | .422 | .574 | .879 | .802 | .648 | .450 | .587 | .840 |
| 5 | .750 | .752 | .502 | .667 | .820 | .860 | .627 | .487 | .623 | .862 | .693 | .802 | .495 | .686 | .807 |
| 6 | .684 | .826 | .510 | .722 | .798 | .800 | .687 | .487 | .646 | .828 | .624 | .883 | .507 | .769 | .790 |
| 7 | .592 | .870 | .462 | .751 | .763 | .760 | .746 | .506 | .682 | .813 | .505 | .920 | .425 | .797 | .749 |
| 8 | .493 | .900 | .393 | .765 | .729 | .660 | .806 | .466 | .709 | .768 | .406 | .938 | .344 | .803 | .717 |
| 9 | .441 | .922 | .363 | .789 | .714 | .620 | .836 | .456 | .730 | .755 | .347 | .957 | .304 | .834 | .702 |
| 10 | .388 | .948 | .336 | .831 | .701 | .560 | .881 | .441 | .771 | .737 | .307 | .975 | .282 | .884 | .693 |
| 11 | .342 | .965 | .307 | .866 | .689 | .540 | .925 | .465 | .837 | .738 | .248 | .981 | .229 | .891 | .677 |
| 12 | .270 | .978 | .248 | .890 | .670 | .420 | .940 | .360 | .834 | .694 | .198 | .994 | .192 | .954 | .665 |
| 13 | .217 | .983 | .200 | .894 | .655 | .360 | .955 | .315 | .851 | .676 | .149 | .994 | .143 | .939 | .652 |
| 14 | .178 | .991 | .169 | .929 | .646 | .300 | .985 | .285 | .935 | .663 | .119 | .994 | .113 | .925 | .644 |
| 15 | .151 | .991 | .142 | .917 | .638 | .280 | .985 | .265 | .930 | .657 | .089 | .994 | .083 | .902 | .636 |
| AUDIT-C | |||||||||||||||
| 1 | 1.000 | .017 | .017 | .402 | 1.000 | 1.000 | .025 | .025 | .390 | 1.000 | |||||
| 2 | .921 | .278 | .199 | .458 | .842 | .940 | .209 | .149 | .459 | .830 | .911 | .309 | .220 | .451 | .848 |
| 3 | .822 | .530 | .352 | .536 | .818 | .900 | .403 | .303 | .519 | .849 | .782 | .586 | .368 | .541 | .812 |
| 4 | .632 | .717 | .349 | .596 | .747 | .800 | .612 | .412 | .596 | .811 | .545 | .759 | .304 | .585 | .728 |
| 5 | .461 | .835 | .296 | .649 | .701 | .640 | .701 | .341 | .605 | .731 | .376 | .889 | .265 | .679 | .696 |
| 6 | .342 | .913 | .255 | .722 | .677 | .520 | .791 | .311 | .640 | .697 | .257 | .963 | .220 | .812 | .675 |
| 7 | .230 | .948 | .178 | .745 | .651 | .420 | .866 | .286 | .692 | .676 | .139 | .981 | .120 | .820 | .646 |
| 8 | .125 | .974 | .099 | .761 | .627 | .260 | .910 | .170 | .674 | .632 | .059 | 1.000 | .059 | 1.000 | .630 |
| 9 | .086 | .978 | .064 | .721 | .618 | .220 | .925 | .145 | .677 | .624 | .020 | 1.000 | .020 | 1.000 | .621 |
| 10 | .053 | .996 | .049 | .898 | .614 | .160 | .985 | .145 | .884 | .621 | |||||
Note: Optimal cutoff scores are shaded in gray and interpreted as “greater than or equal to” a given value.