TABLE 1.

Baseline characteristics of the 166 study subjects included in the analyses, by study group

CharacteristicValue for study group:P value
CephalexinPlacebo
Age, median (range), yr43 (22-66)45 (22-88)0.3191
Male sex (%)72.081.00.2313
Race (%)0.2431
    American Indian6.20
    Pacific Islander1.51.5
    Asian4.61.5
    African-American38.546.2
    Caucasian49.250.8
Homeless (%)35.438.10.7493
Diabetes (%)2.46.00.4432
Hepatitis B or C (%)30.533.30.7408
HIV infection (%)15.97.10.0915
Abscess size of >5 cm in dimension (%)
    Length17.718.11.0000
    Width19.224.10.5668
    Depth1.45.30.3678
    Surface area, mean (range), cm218.7 (1-144)19.0 (1-150)0.3676
    Tissue depth (%)
        Subcutaneous64.167.70.9048
        Fascia17.214.1
        Muscle18.818.3
Underlying skin disease (%)
    Folliculitis38.840.21.0000
    Atopic dermatitis0.050.011.0000