Table 4. Regression of total charges on selected primary cancer sites within the chemotherapy diagnosis-related group.
| Diagnosis or presence of metastases | b | Standard error | t statistic |
|---|---|---|---|
| Lung cancer | 507.21 | 107.28 | ***4.73 |
| Breast cancer | 1.80 | 142.56 | 0.01 |
| Cancer of cervix | 439.20 | 146.34 | **3.00 |
| Brain cancer | 882.61 | 164.62 | ***6.36 |
| Cancer of uterus | 370.34 | 165.16 | *2.24 |
| Hodgkin's disease | 359.41 | 173.03 | *2.08 |
| Myeloid leukemia | 1,837.71 | 177.93 | ***10.33 |
| Cancer of testicle | 1,492.58 | 189.86 | ***7.86 |
| Melanoma | 320.50 | 207.16 | 1.55 |
| Presence of metastases | 270.83 | 86.40 | **3.14 |
| R2 = 0.1379 | |||
| F value = 19.1745 | |||
| N = 1,210 |
*
p < .05.
**
p < .01.
***
p < .001.
NOTES: R2 is the percent of variance explained. F is the ratio of explained to unexplained variance. N is the number of cases.