TABLE 1.
Patient demographics, comorbidities, and initial cancer stage at diagnosis, expressed as a percentage of patients in each income quintile
| Variable | Percentage of patients | P | |||||
|---|---|---|---|---|---|---|---|
| Total | Q1 (Lowest), n = 11 609 (23.0%) | Q2, n = 11 015 21.8%) | Q3, n = 9915 19.6%) | Q4, n = 9625 19.0%) | Q5, n = 8378 (16.6%) | ||
| Age ≥ 65 | 68.0 | 66.3 | 67.8 | 67.9 | 68.4 | 70.0 | <.0001*** |
| Sex (Male) | 51.9 | 51.3 | 52.0 | 52.5 | 53.1 | 50.8 | .011* |
| Comorbidities (ADG) | <.0001*** | ||||||
| 0‐4 | 21.1 | 22.4 | 21.5 | 20.8 | 20.5 | 19.9 | |
| 5‐9 | 53.3 | 51.3 | 53.3 | 54.7 | 54.2 | 53.5 | |
| ≥10 | 25.6 | 26.4 | 25.3 | 24.5 | 25.3 | 26.6 | |
| Rural | 15.2 | 16.2 | 14.8 | 15.4 | 14.8 | 14.7 | .012* |
| Stage | .003** | ||||||
| IA | 13.1 | 12.8 | 12.7 | 13.7 | 12.7 | 14.0 | |
| IB | 9.7 | 9.3 | 9.5 | 9.9 | 10.2 | 9.7 | |
| IIA | 3.8 | 3.8 | 3.8 | 3.6 | 3.8 | 4.2 | |
| IIB | 4.7 | 5.1 | 4.9 | 4.3 | 4.6 | 4.3 | |
| IIIA | 12.7 | 13.2 | 13.0 | 12.1 | 12.4 | 12.5 | |
| IIIB | 9.1 | 9.4 | 9.1 | 9.1 | 9.4 | 8.4 | |
| IV | 46.9 | 46.3 | 47.1 | 47.5 | 46.8 | 46.8 | |
Q indicates income quintile.
*Denotes a statistically significant finding (*P < .05. **P < .01. ***P < .001) where P is from chi‐squared.