Table 1. Baseline Characteristics, Intention-to-Treat Population.
| Characteristic | No. (%) | ||
|---|---|---|---|
| Course | All individuals | ||
| Short | Standard | ||
| No. | 189 | 191 | 380 |
| Age, mean (SD), mo | 34.6 (16.6) | 36.8 (17.8) | 35.7 (17.2) |
| Age group, mo | |||
| <24 | 55 (29) | 56 (29) | 111 (29) |
| 24-71 | 134 (71) | 135 (71) | 269 (71) |
| Sex | |||
| Female | 95 (50) | 91 (48) | 186 (49) |
| Male | 94 (50) | 100 (52) | 194 (51) |
| Racea | |||
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 4 (2) | 4 (2) | 8 (2) |
| Black or African American | 48 (25) | 51 (27) | 99 (26) |
| Native Hawaiian or other Pacific Islander | 0 | 0 | 0 |
| White | 118 (62) | 116 (61) | 234 (62) |
| Multiracial | 15 (8) | 17 (9) | 32 (8) |
| Unknown or unreported | 4 (2) | 3 (2) | 7 (2) |
| Ethnicitya | |||
| Hispanic or Latino | 15 (8) | 18 (9) | 33 (9) |
| Not Hispanic or Latino | 173 (92) | 171 (90) | 344 (91) |
| Unknown or unreported | 1 (<1) | 2 (1) | 3 (<1) |
| Site of initial diagnosis | |||
| Outpatient or urgent care clinic | 149 (79) | 151 (79) | 300 (79) |
| Emergency department | 40 (21) | 40 (21) | 80 (21) |
| Initial antibiotic treatment | |||
| Amoxicillin | 173 (92) | 172 (90) | 345 (91) |
| Amoxicillin and clavulanate | 10 (5) | 10 (5) | 20 (5) |
| Cefdinir | 6 (3) | 9 (5) | 15 (4) |
a
Race and ethnicity data were reported by caregivers at the time of study participation and were used to compare baseline demographic characteristics by treatment strategy.