Table 1.
Demographic Characteristics of Patients Before Matching and After Propensity Score Matching
| Variable | Immunosuppressed (n = 4249) No. (%) | Non-immunosuppressed (n = 8758) No. (%) | Absolute standardized difference |
|---|---|---|---|
| Original unmatched population (N = 13 007) | |||
| Age, Mean ± SD (years) | 65.68 (14.96) | 62.03 (19.30) | 0.21144 |
| Male Gender | 2648 (62.32) | 4536 (51.79) | 0.2139 |
| DM | 1240 (29.18) | 1811 (20.68) | 0.19756 |
| Hypertension | 2357 (55.47) | 2882 (32.91) | 0.24029 |
| CAD | 329 (7.74) | 511 (5.83) | 0.07592 |
| CHF | 233 (5.48) | 410 (4.68) | 0.03653 |
| COPD | 217 (5.11) | 220 (2.51) | 0.13588 |
| CKD | 296 (6.97) | 477 (5.45) | 0.06303 |
| Hemodialysis | 531 (12.50) | 438 (5.00) | 0.26766 |
| Cancer | 229 (5.39) | 318 (3.63) | 0.08481 |
| ICU admission | 1897 (44.65) | 1050 (11.99) | 0.77771 |
| CRRT | 160 (3.77) | 25 (0.29) | 0.24895 |
| Inotrope/ vasopressor use | 209 (4.92) | 155 (1.77) | 0.17582 |
| Presence of CVC | 1517 (35.70) | 542 (6.19) | 0.77828 |
| Variable | Immunosuppressed (n = 3260), No. (%) | Non-immunosuppressed (n = 3260), No. (%) | Absolute standardized difference |
| Propensity score–matched population (n = 6520) | |||
| Age, Mean ± SD (years) | 66.20 (15.59) | 66.94 (16.10) | 0.04326 |
| Male Gender | 1906 (58.47) | 2006 (61.53) | 0.06232 |
| DM | 978 (30.00) | 880 (26.99) | 0.06983 |
| Hypertension | 1457 (44.69) | 1417 (43.47) | 0.02537 |
| CAD | 258 (7.91) | 233 (7.15) | 0.03051 |
| CHF | 182 (5.58) | 164 (5.03) | 0.02514 |
| COPD | 186 (5.71) | 152 (4.66) | 0.05461 |
| CKD | 218 (6.69) | 196 (6.01) | 0.02798 |
| Hemodialysis | 273 (8.37) | 232 (7.12) | 0.04491 |
| Cancer | 180 (5.52) | 163 (5.00) | 0.02515 |
| ICU admission | 911 (27.94) | 859 (26.35) | 0.03799 |
| CRRT | 60 (1.84) | 25 (0.77) | 0.07680 |
| Inotrope/vasopressor use | 139 (4.26) | 91 (2.79) | 0.08221 |
| Presence of CVC | 540 (16.56) | 533 (16.35) | 0.00566 |
Abbreviations: CAD, coronary artery disease; CHF, congestive heart failure; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CRRT, continuous renal replacement therapy; CVC, central venous catheter; DM, diabetes mellitus; ICU, intensive care unit; SD, standard deviation.