Table 1.
Characteristics of the patients with CRKP and CSKP before and after PSM.
| Baseline Characteristics | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|
| CSKP | CRKP | p-Value | CSKP | CRKP | p-Value | |
| Number of inpatient, n | 4328 | 831 | 822 | 822 | ||
| Age in years, median (range) | 72 (0–100) | 73 (0–98) | 0.323 | 70 (0–100) | 73 (0–98) | 0.602 |
| Sex male, n (%) | 2963 (68.46) | 554 (66.67) | 0.309 | 554 (67.40) | 547 (66.55) | 0.714 |
| Insurance, n (%) | 3568 (82.44) | 658 (79.18) | 0.025 | 644 (78.35) | 650 (79.08) | 0.718 |
| Number of diagnosis, median (range) | 6 (1–30) | 7 (1–23) | 0.129 | 6 (1–30) | 6.5 (1–23) | 0.481 |
| Charlson comorbidity index, median (range) | 5 (1–34) | 5 (1–18) | 0.074 | 5 (1–24) | 5 (1–18) | 0.710 |
| Admission to ICU, n (%) | 503 (11.62) | 321 (38.63) | <0.0001 | 310 (37.71) | 312 (37.96) | 0.919 |
| Surgery, n (%) | 1106 (25.55) | 277 (33.33) | <0.0001 | 300 (36.50) | 276 (33.58) | 0.215 |
| Myocardial infarction, n (%) | 124 (2.87) | 19 (2.29) | 0.352 | 22 (2.68) | 19 (2.31) | 0.635 |
| Congestive heart failure, n (%) | 764 (17.65) | 121 (14.56) | 0.03 | 125 (15.21) | 119 (14.48) | 0.677 |
| Peripheral vascular disease, n (%) | 54 (1.25) | 11 (1.32) | 0.857 | 12 (1.46) | 11 (1.34) | 0.834 |
| Cerebrovascular diseases, n (%) | 2178 (50.32) | 484 (58.24) | <0.0001 | 462 (56.20) | 476 (57.91) | 0.485 |
| Dementia, n (%) | 130 (3.00) | 24 (2.89) | 0.858 | 23 (2.80) | 24 (2.92) | 0.882 |
| Chronic pulmonary disease, n (%) | 1084 (25.05) | 154 (18.53) | <0.0001 | 139 (16.91) | 154 (18.73) | 0.334 |
| Connective tissue disease, n (%) | 83 (1.92) | 9 (1.08) | 0.096 | 11 (1.34) | 9 (1.09) | 0.653 |
| Mild liver disease, n (%) | 163 (3.77) | 24 (2.89) | 0.215 | 25 (3.04) | 24 (2.92) | 0.885 |
| Peptic ulcer disease, n (%) | 29 (2.98) | 31 (3.73) | 0.253 | 40 (4.87) | 31 (3.77) | 0.275 |
| Diabetes mellitus, n (%) | 1206 (27.87) | 194 (23.35) | 0.007 | 175 (21.29) | 193 (23.48) | 0.287 |
| Diabetes mellitus with chronic complications, n (%) | 163 (3.77) | 15 (1.81) | 0.005 | 13 (1.58) | 15 (1.82) | 0.703 |
| Moderate to severe chronic kidney disease, n (%) | 322 (7.44) | 102 (12.27) | <0.0001 | 116 (14.11) | 97 (11.80) | 0.163 |
| Hemiplegia, n (%) | 38 (0.88) | 8 (0.96) | 0.812 | 6 (0.73) | 8 (0.97) | 0.591 |
| Solid tumor without metastases, n (%) | 298 (6.89) | 52 (6.26) | 0.51 | 59 (7.18) | 50 (6.08) | 0.372 |
| Leukemia, n (%) | 67 (1.55) | 24 (2.89) | 0.007 | 27 (3.28) | 24 (2.92) | 0.670 |
| Malignant lymphoma, n (%) | 46 (1.06) | 15 (1.81) | 0.07 | 19 (2.31) | 15 (1.82) | 0.488 |
| Severe liver disease, n (%) | 57 (1.32) | 13 (1.56) | 0.572 | 11 (1.34) | 13 (1.58) | 0.681 |
| Metastatic tumor, n (%) | 249 (5.75) | 16 (1.93) | <0.0001 | 15 (1.82) | 16 (1.95) | 0.856 |
CRKP: carbapenem resistant Klebsiella pneumoniae, CSKP: carbapenem susceptible K. pneumoniae, PSM: propensity score matching, ICU: intensive care unit.