Table 2.
Population Characteristics
| Characteristic | ||
|---|---|---|
| Na | ||
| Age at admission (years, median [IQR]) | 453 | 6.00 (2.20, 10.50) |
| Female, No. (%) | 453 | 168 (37) |
| Race/Ethnicity, No. (%) | 392 | |
| Non-Hispanic White | 215 (55) | |
| Non-Hispanic Black | 127 (32) | |
| Hispanic | 26 (7) | |
| Other | 24 (6) | |
| Pre-existing medical conditionb, No. (%) | 437 | |
| None | 311 (71) | |
| Respiratory | 32 (7) | |
| Neurologic | 17 (4) | |
| Blood | 11 (3) | |
| Ortho | 12 (3) | |
| GI | 7 (2) | |
| Prematurity | 10 (2) | |
| Kidney | 3 (1) | |
| Cardiac | 5 (1) | |
| Liver | 1 (0) | |
| Other | 76 (17) | |
| Infection type and locationc, No. (%) | ||
| Acute Hematogenous Osteomyelitis | 218 | |
| Femur | 53 (24) | |
| Fibula | 16 (7) | |
| Foot | 39 (18) | |
| Hand | 9 (4) | |
| Humerus | 9 (4) | |
| Pelvis | 39 (18) | |
| Radius | 1 (<1) | |
| Tibia | 43 (20) | |
| Ulna | 3 (1) | |
| Vertebral | 8 (4) | |
| Otherd | 6 (3) | |
| Septic Arthritis | 132 | |
| Ankle | 11 (8) | |
| Elbow | 9 (7) | |
| Foot | 4 (3) | |
| Hand | 2 (2) | |
| Hip | 51 (39) | |
| Knee | 54 (41) | |
| Sacro-iliac | 1 (1) | |
| Shoulder | 3 (2) | |
| Wrist | 3 (2) | |
| Pubic symphysis | 1 (1) | |
| Concurrent AHO/SAe | 103 | |
| Lower Extremity | 88 (85) | |
| Upper Extremity | 20 (19) | |
| Associated Findings, No. (%) | 453 | |
| Myositis/pyomyositis | 229 (51) | |
| Septic Arthritis | 132 | 41 (31) |
| Acute Hematogenous Osteomyelitis | 218 | 122 (56) |
| Concurrent AHO/SA | 103 | 66 (64) |
| Disseminated infectionf | 30 (7) | |
| Septic Arthritis | 132 | 3 (2) |
| Acute Hematogenous Osteomyelitis | 218 | 12 (6) |
| Concurrent AHO/SA | 103 | 15 (15) |
| Fasciitis | 22 (5) | |
| Septic Arthritis | 132 | 3 (2) |
| Acute Hematogenous Osteomyelitis | 218 | 11 (5) |
| Concurrent AHO/SA | 103 | 8 (8) |
a
Some subjects had missing data
b
Subjects may have multiple pre-existing conditions
c
Subjects may be infected at multiple sites
d
Other AHO sites- rib, clavicle, scapula, sternum
e
Five subjects with both upper and lower extremity infections
f
Defined as visceral abscess, pulmonary nodules, or endocarditis)