LIVE Score stability and mortality
| Alive in year 1 N (%) | Mortality year 1 to year 4 N (%) | Survived year 1 to year 4 N (%) | Stability (same LIVE Score year 1 to year 4) N (%) | P value (test of proportions) | |
| Total for all health systems categorised LIVE Score (high-risk, medium-risk and low risk) | |||||
| Year 1 LIVE Risk Score | |||||
| High-risk LIVE | 4330 (3.9%) | 1985 (45.8%) | 2345 (54.2%) | 207 (8.8%) | High vs medium, stability, p<0.001 |
| Medium-risk LIVE | 16 732 (15.2%) | 4160 (24.9%) | 12 572 (75.1%) | 6049 (48.1%) | Medium vs low, stability, p<0.001 |
| Low-risk LIVE | 89 377 (80.9%) | 5528 (6.2%) | 83 849 (93.8%) | 66 245 (79.0%) | Low vs high, stability, p<0.001 |
| Total | 110 439 (100%) | 11 673 (10.6%) | 98 766 (89.4%) | 72 501 (73.4%) | All groups trend test for stability, p<0.001 |
| Total for all health systems LIVE Score 1 through 5 | |||||
| Year 1 LIVE Score | |||||
| LIVE 1 | 1361 (1.2%) | 744 (54.7%) | 617 (45.3%) | 45 (7.3%) | 1 vs 2, stability p=0.14 |
| LIVE 2 | 2969 (2.7%) | 1241 (41.8%) | 1728 (58.2%) | 162 (9.4%) | 2 vs 3, stability p<0.001 |
| LIVE 3 | 16 732 (15.2%) | 4160 (24.9%) | 12 572 (75.1%) | 6049 (48.1%) | 3 vs 4, stability, p<0.001 |
| LIVE 4 | 33 633 (30.5%) | 3397 (10.1%) | 30 236 (89.9%) | 21 130 (69.9%) | 4 vs 5, stability, p<0.001 |
| LIVE 5 | 55 744 (50.5%) | 2131 (3.8%) | 53 613 (96.2%) | 45 115 (84.1%) | 5 vs 1, stability, p<0.001 |
| Total | 110 439 (100%) | 11 673 (10.6%) | 98 766 (89.4%) | 72 501 (73.4%) | All groups trend test for stability, p<0.001 |
LIVE Score stability and mortality for all health systems is summarised. High-risk LIVE Score patients, only 54.5% of whom were alive at 4 years, were unlikely to remain high risk (only 8.8% of survivors remained with a high-risk LIVE Score). Thus the high-risk LIVE Score was unstable. In contrast, low-risk LIVE Score patients, the majority of whom were alive after 4 years (89.4%), were very likely to remain low risk. The low-risk LIVE Score was stable, with 73.4% of patients remaining low risk at 4 years. Similar patterns were noted when the LIVE Score was broken out into the five categories of lowest (LIVE 5) to highest (LIVE 1) risk with number of survivors and stability increasing with decreasing mortality risk.
LIVE, Laboratory-based Intermountain Validated Exacerbation.