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Table 3 Simple and multiple regression coefficients for variables associated with State Entropy

From: Statistical complexity of reasons for encounter in high users of out of hours primary care: analysis of a national service

  Coefficient 95%CI p-value
Simple regression – all high users
 Number of calls 0.01 0.010 to 0.010 <.001
 Number of RfE categories 0.35 0.350 to 0.350 <.001
 Number of BDS systems 0.51 0.490 to 0.520 <.001
 Age (decades) 0.00 −0.004 to 0.004 0.86
 Sex: Male −0.09 −0.110 to −0.070 <.001
 Mental Health RfE 0.34 0.310 to 0.370 <.001
Multiple regression - all high users
 Number of calls −0.017 −0.018 to − 0.017 <.001
 Number of RfE categories 0.406 0.403 to 0.408 <.001
 Sex: Male −0.021 −0.029 to − 0.013 <.001
 Mental Health RfE −0.046 − 0.056 to − 0.036 < 0.001
Multiple regression - users with 5–30 contacts
 Number of calls − 0.047 −0.048 to − 0.046 <.001
 Number of RfE categories 0.452 0.450 to 0.454 <.001
 Sex: Male − 0.014 − 0.02 to − 0.008 < 0.001
 Mental Health RfE 0.046 0.056 to 0.036 < 0.001
  1. RfE Reason for encounter, BDS Bodily distress syndrome
  2. Age excluded from the multiple regression as no significant effect in univariate regression. BDS excluded from multiple regression because of multicollearity.