Table 2 Differences in the distribution of clinical outcomes between patients with low SI and high SI
Clinical outcomes | Total n = 306 | P | Frequent exacerbators n = 106 | P | Non-frequent exacerbators n = 200 | P | |||
|---|---|---|---|---|---|---|---|---|---|
low SI (SI < 91.75, n = 153) | high SI (SI ≥ 91.75, n = 153) | low SI (SI < 82.94, n = 53) | high SI (SI ≥ 82.94 n = 53) | low SI (SI < 101.41, n = 100) | high SI (SI ≥ 101.41, n = 100) | ||||
Respiratory failure, n (%) | 54 (35.3) | 18 (11.8) |  < 0.001 | 26 (49.1) | 15 (28.3) | 0.028 | 22 (22.0) | 9 (9.0) | 0.011 |
Heart failure, n (%) | 33 (21.6) | 20 (13.1) | 0.050 | 13 (24.5) | 14 (26.4) | 0.824 | 17 (17.0) | 9 (9.0) | 0.093 |
Severe pneumonia, n(%) | 17 (11.1) | 7 (4.6) | 0.033 | 9 (17.0) | 6 (11.3) | 0.403 | 5 (5.0) | 4 (4.0) | 0.733 |
Invasive mechanical ventilation, n(%) | 14 (9.2) | 6 (3.9) | 0.064 | 8 (15.1) | 4 (7.5) | 0.220 | 4 (4.0) | 4 (4.0) | 1 |
Mortality, n (%) | 2 (1.3) | 0 | 0.156 | 1 (1.9) | 0 | 0.315 | 1 (1.0) | 0 | 0.316 |