Table 3.
Multivariate polytomous logistic regression analysis of factors associated with NTDC-related visits to EDs comparing nonworking and night hours with working hours: National Hospital Ambulatory Medical Care Survey, United States, 1997–2007
| Predictor/comparison | Adjusted relative rate ratio (95% CI)
|
P-value | |
|---|---|---|---|
| Nonworking vs working hours | Night vs working hours | ||
| Metropolitan statistical area | 0.5688 | ||
| Non-MSA vs MSA | 1.13 (0.84–1.52) | 1.15 (0.88–1.52) | |
| Payer type | 0.0003 | ||
| Medicaid vs private insurance | 0.71 (0.55–0.91) | 0.58 (0.44–0.77) | |
| Medicare vs private insurance | 0.92 (0.55–1.52) | 0.79 (0.48–1.32) | |
| Other vs private insurance | 0.40 (0.23–0.69) | 0.70 (0.45–1.11) | |
| Self-pay vs private insurance | 0.61 (0.47–0.79) | 0.68 (0.53–0.87) | |
| Unknown vs private insurance | 0.66 (0.43–1.00) | 0.68 (0.46–1.01) | |
| Region | 0.0777 | ||
| Midwest vs Northeast | 1.08 (0.82–1.42) | 1.39 (1.02–1.89) | |
| South vs Northeast | 1.10 (0.86–1.42) | 1.51 (1.16–1.97) | |
| West vs Northeast | 1.04 (0.74–1.48) | 1.23 (0.88–1.73) | |
| Sex | 0.5665 | ||
| Female vs male | 1.00 (0.84–1.20) | 0.92 (0.74–1.13) | |
| Calendar year | 0.98 (0.95–1.01) | 0.97 (0.94–1.00) | 0.2326 |
| Age group (years) | 0.0005 | ||
| 0–4 vs 19–33 | 1.76 (1.11–2.78) | 1.08 (0.69–1.70) | |
| 5–18 vs 19–33 | 1.58 (1.15–2.17) | 1.40 (0.96–2.03) | |
| 34–52 vs 19–33 | 0.87 (0.72–1.05) | 0.73 (0.59–0.90) | |
| 53–72 vs 19–33 | 0.96 (0.65–1.42) | 0.74 (0.48–1.16) | |
| 73 and older vs 19–33 | 0.41 (0.21–0.81) | 0.45 (0.19–1.07) | |
| Hospital ownership | 0.0592 | ||
| Government, non-federal vs voluntary nonprofit | 0.78 (0.63–0.96) | 0.78 (0.63–0.96) | |
| Proprietary vs voluntary nonprofit | 0.77 (0.56–1.04) | 0.73 (0.51–1.03) | |
| Race/ethnicity | 0.3943 | ||
| Hispanic vs NHW | 0.99 (0.73–1.35) | 1.17 (0.86–1.60) | |
| Non-Hispanic Black vs NHW | 0.78 (0.61–1.00) | 0.94 (0.75–1.19) | |
| Other vs NHW | 1.16 (0.59–2.30) | 1.18 (0.63–2.22) | |
| Patient-stated reason for visit | 0.0397 | ||
| Dental reason vs nondental reason | 1.10 (0.90–1.34) | 1.33 (1.06–1.67) | |
Note:P-values are from the Wald test.
Abbreviations: NTDC, nontraumatic dental condition; ED, emergency department; CI, confidence interval; MSA, Metropolitan Statistical Area; NHW, non-Hispanic White.