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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