Table 2.
A. Attributes of the Cohort, their Neighborhoods, and Surrounding Health Care Supply (N=93,332)
| Breast | Colon | Rectal | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Variable | Proportion | N | Proportion | N | Proportion | N | |||
| Individual-level | 43,830 | 37,807 | 11,695 | ||||||
| Demographic Variables | |||||||||
| Age in decades (mean, range) | 7.66 | (6.60-10.80) | 7.86 | (6.60-10.80) | 7.74 | (6.60-10.20) | |||
| Sex | |||||||||
| Female | 1.00 | 0.58 | 0.49 | ||||||
| Male | 0.00 | 0.42 | 0.51 | ||||||
| Race | |||||||||
| White | 0.85 | 0.80 | 0.82 | ||||||
| Black | 0.10 | 0.13 | 0.10 | ||||||
| Other Race | 0.05 | 0.07 | 0.08 | ||||||
| Marital Status | |||||||||
| Married | 0.39 | 0.45 | 0.47 | ||||||
| Widowed | 0.41 | 0.36 | 0.32 | ||||||
| Single | 0.09 | 0.10 | 0.10 | ||||||
| Separated | 0.01 | 0.01 | 0.01 | ||||||
| Divorced | 0.06 | 0.05 | 0.06 | ||||||
| Unknown | 0.04 | 0.03 | 0.04 | ||||||
| Poverty Status (0/1) | 0.12 | 0.15 | 0.14 | ||||||
| Disease Variables | |||||||||
| Charlson Comorbidity Score | |||||||||
| 0 | 0.41 | 0.32 | 0.36 | ||||||
| 1 | 0.26 | 0.25 | 0.25 | ||||||
| 2 | 0.14 | 0.16 | 0.14 | ||||||
| ≥3 | 0.16 | 0.23 | 0.19 | ||||||
| No look-back claims | 0.03 | 0.04 | 0.06 | ||||||
| Cancer Stage at Diagnosis | |||||||||
| Local | 0.64 | 0.38 | 0.42 | ||||||
| Regional | 0.26 | 0.37 | 0.34 | ||||||
| Metastasis | 0.07 | 0.20 | 0.16 | ||||||
| Unstaged | 0.03 | 0.05 | 0.08 | ||||||
| Treatment Variables | |||||||||
| Local Control# | 39,229 | 28,173 | 8,879 | ||||||
| Yes | 0.78 | 0.83 | 0.68 | ||||||
| No | 0.22 | 0.17 | 0.32 | ||||||
| Adjuvant ChemotherapyΔ | 4,326 | 5,316 | 1,887 | ||||||
| Yes | 0.10 | 0.14 | 0.16 | ||||||
| No | 0.90 | 0.86 | 0.84 | ||||||
| Any Chemotherapy | 43,832 | 37,807 | 11,695 | ||||||
| Yes | 0.17 | 0.24 | 0.31 | ||||||
| No | 0.83 | 0.76 | 0.69 | ||||||
| Post-Op Mammogram/Colonoscopy * | 29,482 | 18,333 | 5,085 | ||||||
| Yes | 0.67 | 0.48 | 0.43 | ||||||
| No | 0.33 | 0.52 | 0.57 | ||||||
| Mortality Variables | |||||||||
| Alive 5 years after diagnosis | 43,830 | 37,807 | 11,695 | ||||||
| Yes | 0.50 | 0.31 | 0.31 | ||||||
| No | 0.50 | 0.69 | 0.69 | ||||||
| B. Attributes of the Neighborhoods (N=1,963) and Surrounding Health Care Areas (N=393) | |||||||||
|
| |||||||||
| Breast | Colon | Rectal | |||||||
|
| |||||||||
| Variable | Proportion | N | Proportion | N | Proportion | N | |||
|
| |||||||||
| ZCTA-level | 1,561 | 1,539 | 1,285 | ||||||
| Black (%/ZCTA) (mean, range) | 13.27 | (0.00-98.12) | 14.93 | (0.00-98.12) | 13.87 | (0.00-98.12) | |||
| Socioeconomic disadvantage Score (mean) | -0.01 | (-1.18-4.69) | 0.10 | (-1.15-4.69) | 0.10 | (-1.05-4.69) | |||
| Ethnic Isolation Score (mean) | 0.12 | (-0.86-6.08) | 0.17 | (-0.86-6.08) | 0.20 | (-0.86-6.08) | |||
| College Educated (%/ZCTA) (mean) | 0.32 | (0.02-0.94) | 0.30 | (0.02-0.94) | 0.29 | (0.02-0.94) | |||
| HSA-level (per 100K individuals in HSA) | 323 | 333 | 260 | ||||||
| Hospital Beds (mean) | 148.11 | (0.00-4040.39) | 99.26 | (0.00-4040.39) | 149.11 | (0.00-4040.39) | |||
| JCAHO Accredited Hospitals (mean) | 0.54 | (0.00-6.32) | 0.53 | (0.00-6.32) | 0.54 | (0.00-6.32) | |||
| Screening MDs (mean) | 73.96 | (14.30-424.68) | 73.29 | (14.30-424.68) | 72.08 | (14.30-424.68) | |||
| Mammogram Facilities (mean) | 14.50 | (0.00-81.40) | - | - | |||||
| Gastroenterologists (mean) | - | - | 4.57 | (0.00-33.09) | 4.46 | (0.00-33.09) | |||
| Surgeons (mean) | 10.12 | (0.00-74.46) | 10.13 | (0.00-74.46) | 9.91 | (0.00-74.46) | |||
| Medical Oncologists (mean) | 10.32 | (0.00-95.84) | 10.24 | (0.00-95.84) | 37,808 | 9.94 | (0.00-95.84) | 11,695 | |
| Radiation Oncologists (mean) | 1.53 | (0.00-16.26) | 1.51 | (0.00-16.26) | 37,808 | 1.45 | (0.00-16.26) | 11,695 | |
| US Census Region | 4 | 4 | 4 | ||||||
| Northeast | 0.30 | 0.33 | 0.34 | ||||||
| South | 0.18 | 0.19 | 0.20 | ||||||
| West | 0.09 | 0.08 | 0.07 | ||||||
| Midwest | 0.42 | 0.40 | 0.39 | ||||||
#
Sub-cohort of patients diagnosed with local or regional stage disease
Δ
Sub-cohort of regional stage patients s/p resection and alive at 6 month following diagnosis
*
Sub-cohort of regional stage patients s/p resection and alive at 18 months following surgery
Legend: Univariate description of variables within the three-level data source