Table 2.
The effects (point estimate [95% confidence interval]) of eight major factor variables on episode expenditures varied across the 10th, 25th, 50th, 75th and 90th quantile of the expenditure distribution. Effects are measured in thousands of dollars
| 10th quantile | 25th quantile | 50th quantile | 75th quantile | 90th quantile | |
|---|---|---|---|---|---|
| (Intercept) | −4.5 (−14.4, − 1.6) | −3.3 (−6.6, − 1.4) | −3.2 (−7.7, 2.4) | 3.1 (−3.6, 14.0) | 8.7 (−7.1, 15.9) |
| Chemotherapy drugs (ref = Part D) (n = 2110) | |||||
| Part B (n = 828) | 9.5 (8.1, 10.9) | 16.3 (14.0, 18.6) | 25.0 (23.0, 27.1) | 40.6 (37.7, 43.5) | 47.8 (43.9, 51.7) |
| Chemotherapy clean period (days, ref = 62–730) (n = 1235) | |||||
| > 730 (n = 657) | 0.1 (− 0.2, 0.2) | 0.3 (0.1, 0.5) | 0.6 (0.2, 0.9) | 1.5 (0.5, 2.4) | 3.7 (1.6, 5.5) |
| 1–61 (n = 1046) | 0.1 (0.0, 0.3) | 0.5 (0.3, 0.7) | 0.8 (0.4, 1.3) | 1.7 (0.9, 2.7) | 6.2 (3.3, 9.6) |
| Radiation (ref = No) (n = 2681) | |||||
| Yes (n = 257) | 3.8 (2.5, 4.9) | 6.4 (4.5, 7.3) | 7.2 (5.8, 8.8) | 7.1 (5.2, 10.3) | 9.2 (5.2, 13.6) |
| Insurance (ref = No PartDa) (n = 127) | |||||
| PartD LISb (n = 130) | 2.4 (− 0.8, 4.9) | 2.7 (− 0.2, 5.8) | 4.3 (1.7, 9.3) | 3.1 (− 0.5, 10.4) | 0.7 (−3.4, 13.1) |
| PartD NoLISc (n = 1794) | 2.7 (− 0.6, 5.7) | 2.9 (− 0.2, 6.0) | 3.6 (0.3, 8.3) | 0.8 (− 2.5, 9.3) | − 0.8 (−4.1, 5.3) |
| Full duald (n = 887) | 3.2 (0.1, 6.1) | 3.9 (0.9, 7.0) | 5.2 (2.0, 10.1) | 4.3 (0.8, 12.9) | 2.8 (−0.1, 10.3) |
| Comorbidities (ref = 0) (n = 828) | |||||
| 1 (n = 727) | 0.2 (0.1, 0.3) | 0.3 (0.1, 0.5) | 0.5 (0.3, 0.8) | 0.8 (0.1, 1.6) | 0.5 (−1.2, 2.1) |
| 2 (n = 469) | 0.6 (0.3, 0.9) | 1.0 (0.7, 1.3) | 1.3 (1.0, 1.7) | 1.8 (1.1, 3.0) | 1.5 (0.3, 3.1) |
| 3 (n = 288) | 0.8 (0.5, 1.1) | 1.3 (0.8, 1.6) | 1.5 (1.0, 2.2) | 3.2 (1.1, 4.6) | 3.3 (1.3, 7.5) |
| ≥ 4 (n = 271) | 1.4 (0.9, 1.8) | 1.7 (1.2, 2.3) | 3.1 (2.2, 4.8) | 4.2 (2.5, 5.7) | 6.2 (4.3, 7.8) |
| New enrollee (n = 355) | 0.0 (−0.4, 0.3) | 0.4 (−0.1, 0.8) | 0.4 (0.1, 0.9) | −0.2 (−1.1, 0.8) | 1.2 (− 1.0, 4.6) |
| HRR relative cost (in 30) | 0.1 (0.0, 0.2) | 0.4 (0.1, 0.7) | 0.8 (0.4, 1.2) | 1.2 (0.8, 1.6) | 1.8 (1.0, 2.7) |
| Age (10 years) | −0.1 (− 0.2, 0.0) | −0.2 (− 0.3, 0.1) | −0.7 (−1.1, − 0.3) | − 1.2 (− 1.7, − 0.8) | − 1.8 (− 2.2, − 1.2) |
| Surgery (ref = No) (n = 2818) | |||||
| Yes (n = 120) | 5.2 (3.7, 6.5) | 5.6 (4.7, 6.4) | 6.7 (5.1, 7.9) | 6.8 (4.7, 10.3) | 8.6 (5.0, 13.8) |
Note: aNo PartD means no part D enrollment for prescription drug coverage; bPartD LIS means does not have full Medicaid benefits but does have Part D with low income subsidy; cPartD NoLIS means has Part D enrollment but no low income subsidy; dFull dual means full Medicaid benefits (including Part D and LIS)