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Table 5 Multivariate regression models for the log of costs. Coefficients and robust standard errorsa

From: Supply factors as determinants of treatment costs: clinicians’ assessments of a given set of referrals to community mental health centers in Norway

  Model I Model II Model IIIb Model IV b
Coeff SE p Coeff SE p Coeff SE p Coeff SE p
Constant term 11.673 0.214 < 0.001 12.010 0.234 < 0.001 12.138 0.282 < 0.001 11.976 0.310 < 0.001
GAFmin −0.008 0.004 0.056 − 0.011 0.004 0.008 −0.014 0.004 0.001 −0.010 0.005 0.063
Psychosis 0.551 0.091 < 0.001 0.525 0.089 < 0.001 0.500 0.088 < 0.001 0.268 0.161 0.097
Suicidal 0.129 0.070 0.068 0.083 0.070 0.236 0.032 0.069 0.643 0.004 0.132 0.974
Substance abuse −0.067 0.070 0.341 −0.040 0.070 0.569 − 0.041 0.067 0.542 −0.034 0.091 0.707
Psychiatrist     −0.248 0.083 0.003 −0.194 0.101 0.055 −0.164 0.091 0.074
Psychologist     −0.158 0.079 0.047 −0.073 0.108 0.501 −0.033 0.099 0.740
Education     0.243 0.098 0.014 0.186 0.143 0.196 0.160 0.132 0.225
Manager     −0.172 0.066 0.009 −0.193 0.113 0.087 −0.183 0.103 0.076
Rater experience     −0.232 0.066 0.001 −0.111 0.079 0.161 −0.140 0.072 0.054
Referral-specific spespecific fixed effects:
 Average           −0.015   
 Std.dev           0.381   
Center-specific fixed effects:
 Average        −0.013    −0.033   
 Std.dev        0.280    0.289   
Adj R-sq 0.171 0.213 0.276 0.383
  1. aN = 523 in models I-IV. Coefficients with two-sided p-values less than 10% are in boldface
  2. bFor brevity only the averages and standard deviations of the estimated fixed effects are reported in this table; all estimated coefficients are presented in the Additional file 1: Table S2