Table 3.
Linear Regression Model of Log Average Cost per Case Reported for Selected Registry and State Characteristics of Programs Participating in the First 5-Year Project Period of the National Program of Cancer Registries (NPCR)
| Coefficients
(95% CI; P value)a |
||
|---|---|---|
|
| ||
| Explanatory Variables | Full Model | Parsimonious Model |
| Log average annual cancer cases reported | –.571
(–0.715 to –0.427; <.001) |
–.565 (–0.691 to –0.438; <.001) |
| Area (per 1000 sq miles) | .002 (0.000 to 0.004; .03) |
.002 (0.001 to 0.004; .01) |
| NPCR program type (enhancement vs planning) | –.374 (–0.773 to 0.024; .07) |
–.315 (–0.654 to 0.024; .08) |
| 2000 consumer price index | .023 (–0.005 to 0.052; .12) |
.025 (–0.002 to 0.051; .08) |
| High-quality 1999 incidence data | .079 (–0.262 to 0.421; .65) |
NA |
| Percentage of urban population (1990 census) | <.002 (–0.008 to 0.013; .66) |
NA |
| Surveillance Epidemiology and End Results Program metropolitan area or special population within NPCR catchment area | –.063 (–0.505 to 0.378; .78) |
NA |
| NPCR program administered by designee | .010 (–0.337 to 0.356; .96) |
NA |
a
Adjusted R2: full model, 0.73; parsimonious model, 0.71. NA indicates not applicable.