Table 1.

Demographic Characteristics of Study Cohorts

CharacteristicTotal Population (N = 783)Cohort 1* (n = 332)Cohort 2† (n = 447)P
Average age (mean years ± SD)32.9 ± 120.132.4 ± 11.833.2 ± 12.3.38
Race‡.53
    White32567%61%
    African American6713%13%
    Asian/Pacific Islander427%9%
    Other7814%16%
Socioeconomic status‡.26
    Lower24333%30%
    Higher53467%70%
Active duty soldier19329%22%.02

  • ↵* No urine culture ordered.

  • ↵† Urine culture ordered.

  • ↵‡ Some patients were missing data from these variables: race, n = 267; socioeconomic status, n = 2. Unpaired t test was used to compare means, χ2 test was used to compare proportions (missing data excluded).