From: Duration of patients’ visits to the hospital emergency department
Linear Regression Models | Multilevel Model | |||||||
---|---|---|---|---|---|---|---|---|
Model 1 | Model 2 | Model 3 | Model 4 | |||||
Parameters | Std. Errors | Parameters | Std. Errors | Parameters | Std. Errors | Parameters | Std. Errors | |
Admission Day 1 | ||||||||
Visit was on Monday | 0.045*** | (0.002) | 0.044*** | (0.002) | 0.045*** | (0.002) | 0.041*** | (0.002) |
Visit was on weekend | −0.057*** | (0.002) | −0.059*** | (0.002) | −0.056*** | (0.001) | −0.055*** | (0.001) |
Patient Demographics Characteristics | ||||||||
Age | 0.014*** | (0.000) | 0.015*** | (0.000) | 0.013*** | (0.000) | 0.013*** | (0.000) |
Age-squared | 0.001*** | (0.000) | 0.001*** | (0.000) | 0.001*** | (0.000) | 0.001*** | (0.000) |
Female | 0.049*** | (0.002) | 0.046*** | (0.002) | 0.035*** | (0.001) | 0.039*** | (0.001) |
White | 0.077*** | (0.004) | −0.031*** | (0.004) | 0.146*** | (0.003) | 0.137*** | (0.003) |
Black | 0.107*** | (0.005) | 0.007 | (0.005) | 0.179*** | (0.003) | 0.165*** | (0.003) |
Hispanic | 0.115*** | (0.004) | 0.013*** | (0.004) | 0.131*** | (0.003) | 0.122*** | (0.003) |
Asian | 0.267*** | (0.007) | 0.162*** | (0.007) | 0.231*** | (0.005) | 0.222*** | (0.005) |
Medicare | 0.103*** | (0.004) | 0.108*** | (0.004) | 0.149*** | (0.003) | 0.152*** | (0.003) |
Medicaid | −0.143*** | (0.003) | −0.141*** | (0.003) | 0.094*** | (0.002) | 0.096*** | (0.002) |
Private | 0.089*** | (0.003) | 0.101*** | (0.003) | 0.116*** | (0.002) | 0.119*** | (0.002) |
Self-paid | −0.149*** | (0.004) | −0.146*** | (0.004) | −0.037*** | (0.003) | −0.036*** | (0.003) |
Hospital Characteristics | ||||||||
Teaching hospitals | 0.146*** | (0.002) | 0.144*** | (0.002) | . | . | 0.125 | (0.282) |
For-profit hospitals | −0.596*** | (0.002) | −0.599*** | (0.002) | . | . | −0.318 | (0.313) |
Trauma Level 1 hospitals | 0.418*** | (0.003) | 0.411*** | (0.003) | . | . | 0.557 | (0.453) |
Trauma Level 2 hospitals | −0.968*** | (0.004) | −0.959*** | (0.004) | . | . | −0.352 | (0.634) |
Trauma Level 3 hospitals | −0.731*** | (0.004) | −0.728*** | (0.004) | . | . | −0.693 | (0.587) |
Medium size hospitals2 | −0.361*** | (0.002) | −0.354*** | (0.002) | . | . | −0.168 | (0.308) |
Large hospitals | −0.119*** | (0.002) | −0.112*** | (0.002) | . | . | 0.041 | (0.312) |
Member hospitals | −0.312*** | (0.002) | −0.307*** | (0.002) | . | . | −0.322 | (0.263) |
Urban hospitals | 0.095*** | (0.003) | 0.091*** | (0.003) | . | . | 0.207 | (0.320) |
Control for CCS codes3 | Yes | Yes | Yes | Yes | ||||
Control for admission hour4 | No | Yes | Yes | No | ||||
Control for hospital5 | No | No | Yes | |||||
Total number of visits | 4,768,411 | 4,761,855 | 4,761,855 | 4,718,553 | ||||
R-square | 0.096 | 0.097 | 0.542 | |||||
Inra-class correlation | . | . | 0.565 |