Table 2 Patient demographics and infection characteristics at ED presentation

Age, years, mean ± SD

52.8 ± 15.0

Male Gender

50 (53.2)

Total Body Weight, kilograms, mean ± SD

97.6 ± 37.2

 White

76 (80.9)

 Black/African American

17 (18.1)

 Unknown

1 (1.1)

 Diabetes (Type 1 or 2)

30 (31.9)

 Peripheral Vascular Disease

8 (8.5)

 Chronic Kidney Disease

13 (13.8)

 Congestive Heart Failure

14 (14.9)

 Coronary Artery Disease

17 (18.1)

 COPD, Asthma, or Emphysema

14 (14.9)

 Acute or Chronic Liver Disease

5 (5.3)

 Active Malignancy

7 (7.4)

 HIV/AIDS

2 (2.1)

 Other Immunosuppressive disease

7 (7.4)

Charlson Comorbidity Index, median (25^th, 75^th percentile)

2 (0, 4)

Education, 4 year college degree or greater

12 (12.8)

Employment, working full or part-time

40 (43)

 Cellulitis/erysipelas only

50 (53.2)

 Cutaneous abscess only

1 (1.1)

 Wound infection only

10 (10.6)

 Cellulitis + abscess

17 (18.1)

 Cellulitis + wound infection

13 (13.8)

 Abscess + wound infection

1 (1.1)

 Cellulitis + abscess + wound infection

2 (2.1)

Lesion Size, cm², Mean ± SD

522.01 ± 806.5

 Met ABSSSI definition (≥ 75 cm²)

78 (83)

Fever on ED Presentation

9 (9.6)

Leukocytosis on ED Presentation (Normal range: 4–12 cells/mm³)

24 (25.5)

History of Previous ABSSSI

60 (63.8)

 Relapse/failure/readmission for an ongoing ABSSSI episode (n = 60)

29 (48.3)

 Previously received IV antibiotics for an ABSSSI episode (n = 60)

38 (63.3)

 Patients with Culture Collected

32 (34.0)

  Patients with Bacteria Isolated

31 (96.8)

   Patients with Gram-positive

28 (87.5)

   Patients with Gram-negative

9 (28.1)

   Patients with anaerobe

3 (9.4)

   Patients with multiple bacteria on culture

14 (43.8)

   Number of Organisms Isolated

60

    Gram-positives

43 (71.7)

     Staphylococcus aureus

23 (38.3)

      MRSA rate

7 (30.4)

     β-hemolytic streptococci

12 (20)

     Other

8 (13.2)

    Gram-negatives (all Enterobacteriaceae)

11 (18.3)