Table 1.
Demographic Characteristics of Cohort and Bivariable Analysis of Predictors of Surgical Intervention
| Characteristics | Entire Cohort
N (%) N = 142 |
Surgical Intervention
N (%) N = 68 |
No Surgical Intervention
N (%) N = 74 |
OR (95% CI) | P Value |
|---|---|---|---|---|---|
| Demographics | |||||
| Age (mean ± SD) | 68.3 ± 17.1 | 59.5 ± 17.3 | 62.9 ± 16.8 | .24 | |
| Female | 74 (52) | 38 (55.9) | 36 (48.6) | 1.34 (0.69–2.56) | .41 |
| Race | .22 | ||||
| African American | 53 (37) | 28 (41.2) | 25 (33.8) | ||
| Hispanic | 3 (2.1) | 2 (2.9) | 1 (1.4) | ||
| White | 80 (55.9) | 36 (52.9) | 44 (59.5) | ||
| Unknown | 5 (3.5) | 2 (2.9) | 3 (4.1) | ||
| Comorbid conditions | |||||
| Diabetes mellitus | 75 (52.8) | 33 (48.5) | 42 (56.8) | 0.72 (0.37–1.39) | .4 |
| Immunocompromised | 19 (13.4) | 11 (16.2) | 8 (10.8) | 1.6 (0.6–4.2) | .46 |
| Creatinine at baseline >2 mg/dL | 41 (28.8) | 24 (35.3) | 17 (23) | 1.83 (0.88–3.8) | .14 |
| Charlson’s score (mean ± SD) | 3.5 ± 2.4 | 3.54 ± 2.5 | 3.4 ± 2.4 | .79 | |
| Pitt score >3 | 45 (31.7) | 28 (41.2) | 17 (23) | 2.35 (1.14–4.85) | .029 |
| Patient Origin | .018 | ||||
| Home | 45 (31.6) | 26 (38) | 19 (25.7) | ||
| SNF | 69 (48.6) | 25 (36.8) | 44 (59) | ||
| LTAC | 10 (7) | 4 (5.9) | 6 (8.1) | ||
| Hospital transfer | 14 (10) | 19 (19.1) | 5 (6.8) | ||
| LTCF (SNF or LTAC) vs others | 79 (55.6) | 29 (42.6) | 50 (67.6) | 0.36 (0.18–0.71) | .004 |
| Patient Location on Day of First Positive Wound Culture | .35 | ||||
| ED | 22 (15.5) | 9 (13.2) | 13 (17.6) | ||
| ICU | 49 (22.2) | 22 (32.4) | 27 (36.5) | ||
| Medical ward | 49 (22.2) | 22 (32.4) | 27 (36.5) | ||
| Surgical ward | 12 (8.4) | 8 (11.8) | 4 (5.4) | ||
| Other | 10 (7) | 7 (10.3) | 3 (4.1) | ||
| Time from admission to culture (median, days) | 2 (0–9) | 3 (0–10.5) | 1 (0–9) | .26 |
Abbreviations: CI, confidence interval; ED, emergency department; ICU, intensive care unit; LTAC, long-term acute care; LTCF, long-term care facility; OR, odds ratio; SD, standard deviation; SNF, skilled nurse facilities.