Table 4.
Adjusted Difference (%) | 95% Confidence Interval | p-Value | |
---|---|---|---|
Race/ethnicity | |||
Non-Hispanic white | Referent | — | — |
Non-Hispanic black | 14.2 | 3.3, 26.4 | .010 |
Hispanic | 26.1 | 15.1, 38.3 | <.001 |
Other | −3.4 | −18.0, 13.9 | .68 |
Gender | |||
Male | Referent | — | — |
Female | −0.6 | −4.9, 4.0 | .80 |
Age | |||
<3 | Referent | — | — |
3–5 | −2.5 | −10.3, 5.9 | .54 |
6–10 | −10.4 | −16.7, −3.5 | .004 |
11–15 | −1.7 | −8.4, 5.5 | .63 |
Payment source | |||
Private insurance | Referent | — | — |
Medicaid/SCHIP | 3.9 | −2.8, 11.1 | .26 |
Other/unknown | −7.0 | −19.5, 7.4 | .32 |
Uninsured | −0.8 | −9.9, 9.3 | .88 |
Geographic region | |||
Northeast | Referent | — | — |
Midwest | −14.0 | −27.1, 1.4 | .07 |
South | 1.6 | −14.2, 20.2 | .86 |
West | −4.3 | −19.2, 13.3 | .61 |
Metropolitan status | |||
Non-MSA | Referent | — | — |
MSA | 48.2 | 17.2, 87.4 | .001 |
Hospital ownership | |||
Nonprofit organization | Referent | — | — |
Government | −6.6 | −23.4, 13.9 | .50 |
Proprietary | −1.6 | −15.4, 14.4 | .83 |
Pediatric share of ED visits | |||
<25% | Referent | — | — |
25–<75% | 8.0 | −3.8, 21.3 | .20 |
≥75% | 45.6 | 21.7, 74.2 | <.001 |
Triage status | |||
Immediate | Referent | — | — |
1–14 minutes | 57.3 | 25.7, 96.7 | <.001 |
15–60 minutes | 184.8 | 123.9, 262.3 | <.001 |
>1–2 hours | 266.5 | 184.7, 371.9 | <.001 |
>2–24 hours | 286.5 | 195.9, 404.8 | <.001 |
Unknown/no triage | 138.3 | 81.5, 213.0 | <.001 |
Notes. The regression model also controlled for day of week, time of day, year and month of ED visit. The model R2 was 0.14.
Data from NHAMCS 2005–2006 weighted to be nationally representative.
ED, emergency department.