Table 2.
Multivariate analysis of factors associated with the incidence and treatment with radiotherapy and surgery of all cancers and breast and pancreatic cancer, specifically
| All Cancers | Breast | Pancreas | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable‡ | Percent ∆* | 95% CI (+/-)† | P-Value | Percent ∆* | 95% CI (+/-)† | P-Value | Percent ∆* | 95% CI (+/-)† | P-Value | ||
| Incidence | Unemployment | -2.20 | 0.60 | <.001 | -7.21 | 0.91 | <.001 | -2.58 | 0.73 | <.001 | |
| Income quartile 1 | 18.97 | 3.22 | <.001 | -75.05 | 1.04 | <.001 | -69.95 | 0.96 | <.001 | ||
| Income quartile 2 | 21.60 | 3.05 | <.001 | -74.83 | 0.97 | <.001 | -65.01 | 1.03 | <.001 | ||
| Income quartile 3 | -0.68 | 2.28 | 0.772 | -62.77 | 1.31 | <.001 | -55.50 | 1.20 | <.001 | ||
| Education quartile 4 | -25.29 | 1.92 | <.001 | 26.14 | 4.97 | <.001 | 57.70 | 4.76 | <.001 | ||
| Education quartile 3 | -8.21 | 2.44 | 0.0029 | 5.26 | 4.29 | 0.2254 | 18.26 | 3.70 | <.001 | ||
| Education quartile 2 | -7.03 | 2.48 | 0.0102 | 12.87 | 4.61 | 0.006 | 19.51 | 3.74 | <.001 | ||
| Black | 32.95 | 2.94 | <.001 | -78.59 | 0.73 | <.001 | -56.26 | 1.14 | <.001 | ||
| Other Race | -21.45 | 1.74 | <.001 | -82.43 | 0.60 | <.001 | -70.59 | 0.76 | <.001 | ||
| Surgery | Unemployment | -1.99 | 0.81 | 0.0157 | -6.67 | 0.91 | <.001 | -2.37 | 0.33 | <.001 | |
| Income quartile 1 | -47.13 | 1.85 | <.001 | -76.50 | 0.97 | <.001 | -9.43 | 1.29 | <.001 | ||
| Income quartile 2 | -46.16 | 1.75 | <.001 | -75.01 | 0.96 | <.001 | -5.07 | 1.25 | <.001 | ||
| Income quartile 3 | -29.99 | 2.08 | <.001 | -62.94 | 1.30 | <.001 | -3.14 | 1.17 | 0.0121 | ||
| Education quartile 4 | 0.31 | 3.33 | 0.9283 | 27.30 | 4.99 | <.001 | 8.04 | 1.46 | <.001 | ||
| Education quartile 3 | -7.19 | 3.20 | 0.0396 | 5.52 | 4.29 | 0.2026 | 2.14 | 1.43 | 0.1395 | ||
| Education quartile 2 | 6.72 | 3.68 | 0.0713 | 14.42 | 4.65 | 0.0024 | 4.37 | 1.46 | 0.0042 | ||
| Black | -55.80 | 1.26 | <.001 | -80.71 | 0.65 | <.001 | -3.14 | 1.12 | 0.0093 | ||
| Other Race | -63.79 | 1.04 | <.001 | -83.00 | 0.57 | <.001 | -10.58 | 1.04 | <.001 | ||
| Radiotherapy | Unemployment | -9.08 | 0.89 | <.001 | -18.97 | 0.85 | <.001 | -1.86 | 0.38 | <.001 | |
| Income quartile 1 | -73.02 | 1.11 | <.001 | -78.83 | 0.97 | <.001 | -25.93 | 1.22 | <.001 | ||
| Income quartile 2 | -70.89 | 1.11 | <.001 | -70.72 | 1.25 | <.001 | -19.17 | 1.24 | <.001 | ||
| Income quartile 3 | -53.67 | 1.62 | <.001 | -57.84 | 1.65 | <.001 | -12.04 | 1.23 | <.001 | ||
| Education quartile 4 | 37.03 | 5.35 | <.001 | 40.38 | 6.13 | <.001 | 6.50 | 1.67 | <.001 | ||
| Education quartile 3 | 2.32 | 4.14 | 0.5814 | 1.05 | 4.57 | 0.8228 | -0.87 | 1.61 | 0.5976 | ||
| Education quartile 2 | 25.53 | 5.08 | <.001 | 18.00 | 5.35 | 0.001 | 6.69 | 1.73 | <.001 | ||
| Black | -62.84 | 1.25 | <.001 | -68.61 | 1.18 | <.001 | -13.89 | 1.16 | <.001 | ||
| Other Race | -74.13 | 0.87 | <.001 | -74.72 | 0.95 | <.001 | -21.40 | 1.06 | <.001 | ||
* Percentage increase or decrease per 1% increase in unemployment or in comparison to the appropriate reference group.
†95% Confidence Interval
‡ For each set of quartiles, three quartiles are compared to a reference quartile. Income quartile 4 is the reference quartile with the highest income level. Education quartile 1 is the reference quartile with the highest education level. White is the racial reference group.