Effects of the Vermont Mental Health and Substance Abuse Parity Law

Table C.5: 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 -6.245***
(0.074)
  -7.860***
(0.218)
  -6.344***
(0.075)
 
Age (40 and over ommited)            
   18 and under -0.097
(0.067)
0.91 -0.835***
(0.196)
0.43 -0.064
(0.068)
0.94
   19 to 29 0.414***
(0.066)
1.51 -0.583**
(0.269)
0.56 0.440***
(0.066)
1.55
   30 to 39 0.645***
(0.049)
1.91 0.140
(0.157)
1.15 0.659***
(0.049)
1.93
Gender (Female omitted) 0.803***
(0.043)
2.23 0.880***
(0.142)
2.41 0.792***
(0.044)
2.21
Subscriber Status (Dependent omitted) 0.219***
(0.051)
1.24 -0.373**
(0.154)
0.69 0.243***
(0.052)
1.28
County (Chittenden omitted)            
   Addison -0.446***
(0.108)
0.64 -0.740*
(0.390)
0.48 -0.388***
(0.109)
0.68
   Bennington 0.681***
(0.060)
1.98 -0.311
(0.276)
0.73 0.768***
(0.059)
2.16
   Caledonia/Essex/Orleans -0.600***
(0.226)
0.55 -1.233
(1.005)
0.29 -0.507**
(0.226)
0.60
   Franklin/Grand Isle -0.182***
(0.068)
0.83 -0.492**
(0.244)
0.61 -0.098
(0.068)
0.91
   Lamoille -0.451***
(0.121)
0.64 -0.85*
(0.458)
0.43 -0.373***
(0.121)
0.69
   Orange -0.076
(0.189)
0.93 -0.452
(0.714)
0.64 -0.055
(0.195)
0.95
   Rutland 0.273***
(0.068)
1.31 0.030
(0.235)
1.03 0.347***
(0.068)
1.41
   Washington -0.624
(0.112)
0.54 -0.822**
(0.391)
0.44 -0.108
(0.075)
0.90
   Windham/Windsor -0.144**
(0.065)
0.87 0.443***
(0.164)
1.56 -0.122
(0.134)
0.89
Quarter -0.013
(0.009)
0.99 0.016
(0.028)
1.02 -0.017*
(0.009)
0.98
Parity (1 = yes) -0.043
(0.076)
0.96 -0.709***
(0.253)
0.49 -0.008
(0.077)
0.99
Overall Chi-Square 1,023.77***   116.00***   977.17***  
N 707,896   707,896   707,896  
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.

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