Table 1.
Participant demographics (N=374).
| Characteristics | Total populationa | Responders (n=280) | Nonresponders (n=94) | P value | ||
| Age (years), mean (SD) | 46.9 (16.8) | 47.1 (16.9) | 44.1 (17.2) | .06 | ||
| Females, n (%) | 264 (70.1) | 202 (54.0) | 62 (16.6) | .26 | ||
| Race, n (%) | .51 | |||||
|
|
Black | 275 (73.5) | 204 (72.9) | 71 (75.5) |
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|
|
White | 69 (18.4) | 55 (19.6) | 14 (14.9) |
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|
|
Asian | 14 (3.7) | 11 (3.9) | 3 (3.2) |
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|
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Other | 16 (4.3) | 10 (3.6) | 6 (6.4) |
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| Hispanic ethnicity, n (%) | 14 (3.7) | 10 (3.6) | 4 (4.3) | .65 | ||
| Emergency department, n (%) | .91 | |||||
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Hospital A | 225 (60.2) | 168 (60.0) | 57 (54.3) |
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|
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Hospital B | 149 (39.8) | 112 (40.0) | 37 (39.4) |
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aOf the total study sample (n=383), all demographic data were missing for 9 (2.3%) participants.