Table 4 Clinical outcomes of the study patients according to status of coronary artery disease and sex
Clinical outcomes | CAD (n = 664) | No CAD (n = 3242) | P-value | Men | Women | ||||
|---|---|---|---|---|---|---|---|---|---|
CAD (n = 500) | No CAD (n = 2564) | P-value | CAD (n = 164) | No CAD (n = 678) | P-value | ||||
Length of hospital stay (days) | 10.0 (5.8) | 9.0 (4.0) | < 0.001 | 10.0 (5.0) | 9.0 (5.0) |  < 0.001 | 9.0 (5.0) | 9.0 (4.0) | 0.122 |
Total cost during hospitalization (US$) | 1419.3 (952.4) | 1352.1 (862.1) | 0.002 | 1502.2 (987.3) | 1373.4 (886.6) |  < 0.001 | 1197.0 (812.3) | 1289.4 (756.6) | 0.421 |
Change of CAT at discharge compared to admission | − 8.0 (9.0) | − 7.0 (9.0) | 0.003 | − 8.0 (9.0) | − 7.0 (9.0) | 0.006 | − 8.0 (8.0) | − 7.0 (9.0) | 0.235 |
CAT at day 30 | 11.0 (9.0) | 11.0 (8.0) | 0.020 | 12.0 (9.0) | 11.0 (8.0) | 0.046 | 11.0 (7.0) | 10.0 (9.0) | 0.194 |
mMRC at day 30 | 2.0 (1.0) | 1.0 (1.0) | < 0.001 | 2.0 (1.0) | 1.0 (1.0) | 0.003 | 2.0 (1.0) | 1.0 (1.0) | 0.007 |
St George’s Respiratory Questionnaire at day 30 | |||||||||
 Symptoms | 52.4 (21.0) | 53.6 (18.0) | 0.225 | 52.6 (20.0) | 54.0 (18.0) | 0.659 | 49.3 (19.0) | 52.2 (18.0) | 0.108 |
 Activities | 41.8 (31.0) | 42.6 (30.0) | 0.812 | 41.8 (37.0) | 47.2 (30.0) | 0.868 | 42.3 (37.0) | 41.8 (30.0) | 0.870 |
 Impacts | 14.2 (25.0) | 14.1 (24.0) | 0.936 | 14.3 (25.0) | 14.1 (24.0) | 0.832 | 12.9 (23.0) | 14.3 (23.0) | 0.842 |
 Total | 29.3 (23.0) | 30.0 (22.0) | 0.764 | 29.7 (23.0) | 30.3 (22.0) | 0.986 | 27.9 (21.0) | 29.6 (22.0) | 0.595 |
 All-cause readmission or death within 30 days | 13 (3.1%) | 68 (3.4%) | 0.770 | 11 (3.4%) | 59 (3.7%) | 0.872 | 2 (2.0%) | 9 (2.2%) | 1.000 |
 AECOPD readmission within 30 days | 11 (2.7%) | 47 (2.4%) | 0.861 | 9 (2.8%) | 40 (2.5%) | 0.846 | 2 (2.1%) | 7 (1.7%) | 0.686 |