Table 1.

Demographic characteristics

CharacteristicValue
Female/male (n [%])23/14 (62.2/37.8)
Age (yr; mean [range])54.5 (20 to 81)
    ≤40 (n [%])7 (18.9)
    41 to 50 (n [%])6 (16.2)
    51 to 60 (n [%])10 (27.0)
    61 to 70 (n [%])8 (21.6)
    >70 (n [%])6 (16.2)
Race (n [%])
    white30 (81.1)
    Hispanic4 (10.8)
    black3 (8.1)