Table 4.
Multivariate adjusted odd of ED length of stay > 4 hours for discharged ED patients, NHAMCS 2008.
| Weighted Event Rate 24.4% |
Adjusted Odds Ratio [95% CI] |
|
|---|---|---|
| BIVARIATAE WITH ED PAYER MIX ONLY | ||
| ED payer mix | ||
| Non-safety-net | 24.4 | 1 [Reference] |
| Safety-net | 24.4 | 1.00 [0.82, 1.22] |
| MULTIVARIATE WITH ALL PREDICTORS | ||
| ED payer mix | ||
| Non-safety-net | 24.4 | 1 [Reference] |
| Safety-net | 24.4 | 1.03 [0.83, 1.27] |
| Patient age (in years) | ||
| 18–25 | 20.2 | 1 [Reference] |
| 26–64 | 24.4 | 1.25 [1.12, 1.40] |
| >64 | 30.3 | 1.77 [1.53, 2.04] |
| Patient sex | ||
| Female | 26.6 | 1 [Reference] |
| Male | 21.3 | 0.76 [0.69, 0.82] |
| Patient race/ethnicity | ||
| White, non-Hispanic | 22.3 | 1 [Reference] |
| Black/African American, non-Hispanic | 28.0 | 1.27 [1.09, 1.49] |
| Hispanic | 29.2 | 1.28 [1.06, 1.54] |
| Other | 23.2 | 0.94 [0.71, 1.26] |
| Clinician type | ||
| Resident/intern | 37.5 | 1.60 [1.31, 1.96] |
| NP/PA | 19.4 | 0.78 [0.64, 0.96] |
| Attending | 24.0 | 1 [Reference] |
| Other | 17.4 | 0.67 [0.41, 1.12] |
| Patient triage acuity (in minutes) | ||
| <15* | 30.7 | 1 [Reference] |
| 15–60 | 29.0 | 0.86 [0.70, 1.04] |
| 61–120 | 17.3 | 0.46 [0.36, 0.60] |
| >120 | 22.0 | 0.66 [0.48, 0.93] |
| Unknown | 19.5 | 0.55 [0.40, 0.75] |
| Hospital setting | ||
| Rural | 11.9 | 0.36 [0.28, 0.46] |
| Urban | 27.1 | 1 [Reference] |
| Hospital owner | ||
| Non-profit | 24.7 | 1 [Reference] |
| Government | 28.6 | 1.06 [0.76, 1.48] |
| Proprietary | 18.5 | 0.60 [0.43, 0.85] |
| Hospital location | ||
| Northeast | 28.9 | 1.10 [0.87, 1.40] |
| Midwest | 19.9 | 0.77 [0.59, 1.01] |
| South | 24.1 | 1 [Reference] |
| West | 25.5 | 0.93 [0.70, 1.22] |
NP = Nurse practitioner
PA = Physician assistant
*
Triage categories “Immediate” and “1–14 minutes” were combined for the purpose of this analysis