Table 2 Sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio and negative likelihood ratio for pre and post 1 year of administrative data for dementia diagnosis, stratified by country of birth
Test characteristics | Australia (N = 689) | Italy/Greece (N = 342) | Other (N = 369) |
|---|---|---|---|
Result (95% CI) | Result (95% CI) | Result (95% CI) | |
Sensitivity | 20% (8–37%) | 12% (3–31%) | 29% (13–50%) |
Specificity | 99% (98–100%) | 99% (98–100%) | 99% (97–100%) |
Positive predictive value | 54% (29–78%) | 60% (21–90%) | 73% (43–90%) |
Negative predictive value | 96% (95–96%) | 93% (93–94%) | 94% (93–96%) |
Positive likelihood ratio | 21.8 (7.7–61.4) | 19.0 (3.3–108.6) | 32.5 (9.1–115.6) |
Negative likelihood ratio | 0.81 (0.68–0.95) | 0.89 (0.77–1.02) | 0.72 (0.57–0.91) |