Effects of the Vermont Mental Health and Substance Abuse Parity Law

Table C.6: Determinants of the Probability of Substance Abuse Use: Kaiser/CHP, 1996-1999

  Any Mental Health Services Inpatient/Partial MH Outpatient MH
Coefficient (S.E.) Odds Ratio Coefficient (S.E.) Odds Ratio Coefficient (S.E.) Odds Ratio
Intercept -6.714
(0.089) 		  -8.000***
(0.255) 		  -6.757***
(0.091) 		 
Age (40 and over ommited)            
   18 and under -0.054***
(0.077) 		0.95 -0.178
(0.213) 		0.84 -0.062
(0.079) 		0.94
   19 to 29 0.636***
(0.069) 		1.89 0.526***
(0.203) 		1.69 0.628***
(0.071) 		1.87
   30 to 39 0.728***
(0.054) 		2.07 0.351**
(0.172) 		1.42 0.735***
(0.054) 		2.09
Gender (Female omitted) 1.012***
(0.051) 		2.75 0.883***
(0.15) 		2.42 1.017***
(0.052) 		2.77
Subscriber Status (Dependent omitted) 0.343***
(0.058) 		1.41 0.064
(0.168) 		1.07 0.347***
(0.059) 		1.42
County (Chittenden omitted)            
   Addison -0.331***
(0.108) 		0.72 -0.767**
(0.361) 		0.46 -0.314***
(0.110) 		0.73
   Bennington 0.119
(0.091) 		1.13 -0.605*
(0.345) 		0.55 0.154*
(0.092) 		1.17
   Caledonia/Essex/Orleans -0.066
(0.077) 		0.94 -0.826***
(0.278) 		0.44 -0.032
(0.078) 		0.97
   Franklin/Grand Isle -0.309***
(0.110) 		0.73 -0.813**
(0.379) 		0.44 -0.275**
(0.110) 		0.76
   Lamoille -0.467***
(0.131) 		0.63 -0.489
(0.378) 		0.61 -0.455***
(0.133) 		0.63
   Orange -0.366***
(0.117) 		0.69 -1.015**
(0.432) 		0.36 -0.360***
(0.120) 		0.70
   Rutland -0.173*
(0.089) 		0.84 0.026
(0.236) 		1.03 -0.184**
(0.091) 		0.83
   Washington -0.097
(0.076) 		0.91 0.199
(0.199) 		1.22 -0.125
(0.078) 		0.88
   Windham/Windsor -0.093
(0.073) 		0.91 -0.255
(0.218) 		0.78 -0.077
(0.074) 		0.93
Line of Business (VFP omitted)            
   Basic 0.163***
(0.061) 		1.18 0.242
(0.184)		 1.27 0.170***
(0.062) 		1.19
   Comp 0.084
(0.053) 		1.09 0.406***
(0.156) 		1.50 0.073
(0.054) 		1.08
Quarter 0.006
(0.008) 		1.01 0.057**
(0.022) 		1.06 0.005
(0.008) 		1.01
Managed Care for MH/SA (1 = yes) -0.207***
(0.077) 		0.81 -0.107
(0.227) 		0.90 -0.223***
(0.078)		 0.80
Parity (1 = yes) -0.019
(0.085) 		0.98 -0.413*
(0.246) 		0.66 -0.011
(0.086) 		0.99
Overall Chi-Square 960.70***   109.24***   942.68***  
N 656,735   656,735   656,735  
Sources: Original analysis of Blue Cross Blue Shield of Vermont claims/encounter data by Mathematica Policy Research, Inc.
   
* Significantly different from zero at the .10 level, two-tailed test.
** Significantly different from zero at the .10 level, two-tailed test.
*** Significantly different from zero at the .10 level, two-tailed test.
   
S.E. = Standard error.

Previous | Table of Contents | Next