TABLE 5.
Regression Estimates of Relationship between Client and Treatment Factors and Medical Care Expenditures per Member per Month, FY 2002
| Inpatient (n= 6,272) | Outpatient (n= 6,336) | Methadone Maintenance (n= 5,216) | ||||
|---|---|---|---|---|---|---|
| Measure | B (S.E.)a | (95% C.I.)b | B (S.E.) | (95% C.I.) | B (S.E.) | (95% C.I.) |
| Constant | −173.2 (150.8) | (−468.8 – 122.5) | −207.6 (151.3) | (−504.2 – 88.9) | −233.6 (178.9) | (−584.5 – 117.3) |
| Age | 11.4** (2.5) | (6.6 – 16.3) | 12.4** (2.5) | (7.6 – 17.2) | 11.6** (2.9) | (5.9 – 17.3) |
| Gender (female) | −39.6 (49.1) | (−135.8 – 56.7) | −1.1 (48.9) | (−97.0 – 94.9) | −2.7 (57.9) | (−116.3 – 110.9) |
| Race (nonwhite) | 155.8** (54.9) | (48.1 – 263.3) | 112.8* (54.3) | (6.4 – 219.3) | 162.5* (64.8) | (35.5 – 289.5) |
| Baseline (diagnosis-based) risk score | 149.2** (35.3) | (80.0 – 218.4) | 160.8** (35.1) | (92.0 – 229.6) | 134.5** (39.3) | (57.3 – 211.7) |
| Baseline (pharmacy-based) risk score | 110.4** (41.6) | (28.9 – 191.9) | 110.8** (41.1) | (30.2 – 191.3) | 131.3** (46.5) | (40.1 – 222.5) |
| Mental health diagnosis | 243.5** (50.5) | (144.4 – 342.5) | 228.4** (50.5) | (129.4 – 327.4) | 219.4** (59.4) | (102.9 – 335.8) |
| Had reported earnings 1995 – 1999 | −16.1 (47.5) | (−109.2 – 77.1) | −36.6 (47.7) | (−130.1 – 56.9) | −25.0 (55.9) | (−134.7 – 84.6) |
| Baseline (1999) medical care expenditures per member per month | 0.46** (0.14) | (0.18 – .75) | 0.04** (0.01) | (0.01 – 0.06) | 0.05** (0.02) | (0.02 – 0.08) |
| Treatment | −173.9** (55.0) | (−281.7 –−66.0) | −215.6** (54.4) | (−322.3 –−106.9) | −230.3* (97.2) | (−420.9 –−39.7) |
a
Standard error.
b
95% confidence interval.
*
p < .05 (two-tailed test).
**
p < .01 (two-tailed test).