TABLE 1

Patient characteristicsd

ParameterValues (%)aP valueb
SSTI group (n = 46)Non-SSTI group (n = 66)
Age
    Median age, yrs (range)20 (18–28)20 (18–30)1.00
Race/ethnicity
    White, non-Hispanic34 (73.9)47 (71.2)0.80
    Hispanic8 (17.4)11 (16.7)
    Black, non-Hispanic2 (4.3)6 (9.1)
    Other, non-Hispanic2 (4.3)2 (3.0)
Nasal colonization
    MRSA8 (19.0)9 (13.6)0.75
    MSSA17 (40.5)28 (42.4)
    NoSA17 (40.5)29 (43.9)
Oropharynx colonization
    MRSA2 (4.4)3 (4.8)0.93
    MSSA21 (46.7)27 (42.9)
    NoSA22 (48.9)33 (52.4)
Inguinal colonization
    MRSA6 (14.3)4 (7.7)0.55
    MSSAc15 (35.7)18 (34.6)
    NoSA21 (50.0)30 (57.7)
Perianal colonization
    MRSA4 (9.5)4 (8.5)0.90
    MSSA15 (35.7)15 (31.9)
    NoSA23 (54.8)28 (59.6)
Abscess colonization
    MRSA20 (50.0)NA
    MSSA18 (45.0)NA
    NoSA2 (5.0)NA
Site of infection
    Lower extremity21 (45.7)NA
        Knee7 (15.2)
        Thigh6 (13.0)
        Foot4 (8.7)
        Lower leg2 (4.3)
        Buttock2 (4.3)
    Upper extremity11 (23.9)NA
        Forearm7 (15.2)
        Elbow2 (4.3)
        Arm1 (2.2)
        Hand1 (2.2)
    Thorax11 (23.9)NA
        Axilla9 (19.6)
        Abdominal1 (2.2)
        Chest1 (2.2)
    Head and neck3 (6.5)NA
        Face2 (4.3)
        Neck1 (2.2)
  • a Unless otherwise specified, all values represent the number of total individuals in each group followed by the percentage in parentheses. Samples with missing data for a specified characteristic were removed in calculating percentages.

  • b P values were computed using the chi-square statistical test.

  • c At the time of analysis, antibiotic susceptibility data for one S. aureus isolate were not available. The isolate was conservatively labeled as MSSA.

  • d Abbreviations: MRSA, methicillin-resistant Staphylococcus aureus; MSSA, methicillin-sensitive Staphylococcus aureus; NA, not applicable; NoSA, no Staphylococcus aureus.