Table 5. Net Reclassification Improvement of KORAM-M Compared to OSTA Risk Categories with the Different Cut-Off Values.
| OSTA risk category | Total | Osteoporosis | Participants with osteoporosis, % | Participants without osteoporosis, % | NRI (95% CI) | ||
|---|---|---|---|---|---|---|---|
| n (column %) | n (row %) | Up | Down | Up | Down | ||
| Cut-off: -3, 1 | -0.5 (-8.2, 7.2) | ||||||
| High (<-3) | 117 (8.7) | 37 (31.6) | 0.0 | 11.9 | 0.0 | 4.1 | |
| Intermediate (1- -3) | 759 (56.6) | 62 (8.2) | 1.8 | 0.9 | 0.0 | 7.7 | |
| Low (>1) | 464 (34.6) | 10 (2.2) | 0.9 | 0.0 | 2.2 | 0.0 | |
| Cut-off: -4, 1 | 7.3 (0.5, 14.0) | ||||||
| High (<-4) | 65 (4.9) | 25 (38.5) | 0.0 | 4.6 | 0.0 | 1.1 | |
| Intermediate (1- -4) | 811 (60.5) | 74 (9.1) | 5.5 | 0.9 | 0.3 | 7.7 | |
| Low (>1) | 464 (34.6) | 10 (2.2) | 0.9 | 0.0 | 2.2 | 0.0 | |
| Cut-off: -5, 1 | 16.2 (8.9, 23.4) | ||||||
| High (<-5) | 27 (2.0) | 13 (48.1) | 0.0 | 0.0 | 0.0 | 0.0 | |
| Intermediate (1- -5) | 849 (63.4) | 86 (10.1) | 11.9 | 0.9 | 1.3 | 7.7 | |
| Low (>1) | 464 (34.6) | 10 (2.2) | 0.9 | 0.0 | 2.2 | 0.0 | |
| Cut-off: -6, 1 | 22.8 (13.9, 31.6) | ||||||
| High (<-6) | 10 (0.7) | 5 (50.0) | 0.0 | 0.0 | 0.0 | 0.0 | |
| Intermediate (1- -6) | 866 (64.6) | 94 (10.9) | 19.3 | 0.9 | 2.0 | 7.7 | |
| Low (>1) | 464 (34.6) | 10 (2.2) | 0.9 | 0.0 | 2.2 | 0.0 | |
KORAM-M, Korean Osteoporosis Risk-Assessment Model for Men; OSTA, Osteoporosis Self-assessment Tool for Asians; NRI, net reclassification improvement; CI, confidence interval.