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Table 5 Coefficients and standard errors calculated by multiple linear regression analysis

From: The effects of continuity of care on hospital utilization in patients with knee osteoarthritis: analysis of Nationwide insurance data

Category Unadjusted Adjusteda
Coefficient SE P-value Coefficient SE P-value
Gender       
Male       
Female 0.283 0.004 < 0.0001 0.044 0.003 < 0.0001
Age (yr)       
≤ 29       
30–39 −0.010 0.008 0.185 −0.073 0.005 < 0.0001
40–49 0.189 0.007 < 0.0001 −0.060 0.005 < 0.0001
50–59 0.469 0.006 < 0.0001 0.011 0.004 0.008
60–69 0.751 0.006 < 0.0001 0.096 0.005 < 0.0001
≥ 70 0.877 0.006 < 0.0001 0.129 0.005 < 0.0001
Payer type       
National health insurance      
Medicaid 0.414 0.010 < 0.0001 0.174 0.007 < 0.0001
Others 0.599 0.073 < 0.0001 0.220 0.048 < 0.0001
Hospital type       
General hospital 0.088 0.011 < 0.0001 0.072 0.010 < 0.0001
Hospital 0.028 0.030 0.349 0.204 0.020 < 0.0001
Clinic 0.151 0.009 < 0.0001 0.262 0.012 < 0.0001
LTC 0.062 0.029 0.033 0.180 0.021 < 0.0001
Oriental hospital 0.158 0.010 < 0.0001 0.361 0.012 < 0.0001
Oriental clinic       
Region       
Urban 0.038 0.004 < 0.0001 0.031 0.003 < 0.0001
Rural       
Ownership       
Public       
Corporate 0.204 0.025 < 0.0001 0.219 0.016 < 0.0001
Private 0.091 0.024 < 0.0001 0.271 0.016 < 0.0001
COC       
0.76–1.00       
0.51–0.75 −1.348 0.003 < 0.0001 −0.136 0.020 < 0.0001
0.26–0.50 −0.134 0.020 < 0.0001 −1.333 0.003 < 0.0001
0.00–0.25 0.692 0.006 < 0.0001 0.677 0.006 < 0.0001
Low (< 3 visits) 0.618 0.004 < 0.0001 0.608 0.004 < 0.0001
  1. aThe Adj R-Sq of model was 0.583
  2. Abbreviations: SE standard error