Table 1.
Comparison of sample characteristics between 1-year and 4-year interviews
| Characteristic | 1-year interviewa (N=601) % | 4-year interview (N=277) % |
|---|---|---|
| Age | ||
| Less than 65 | 47 | 52 |
| 65 or older | 53 | 48 |
| Income | ||
| Less than $50,000 | 40 | 40 |
| $50,000 or more | 45 | 45 |
| Missing | 15 | 15 |
| Insurance status | ||
| Uninsured | 3 | 3 |
| Insured | 76 | 84 |
| Missing | 20 | 13 |
| Education | ||
| Less than high school | 35 | 42 |
| High school or more | 62 | 49 |
| Missing | 3 | 9 |
| Stage | ||
| I | 24 | 32 |
| II | 24 | 29 |
| III | 28 | 34 |
| Local (I or II) | 24 | 5 |
| Gender | ||
| Female | 52 | 53 |
| Male | 48 | 47 |
| Race | ||
| White | 77 | 79 |
| Non-white | 23 | 21 |
| Missing | 0 | 0 |
| Comorbidities | ||
| None | 24 | 27 |
| Mild | 30 | 40 |
| Moderate | 17 | 17 |
| Severe | 9 | 9 |
| Missing | 20 | 8 |
| Site of disease | ||
| Colon | 58 | 72 |
| Rectum | 17 | 17 |
| Missing | 25 | 10 |
| Saw a primary care provider in first year b | - | 96 |
| Screening for CRC before diagnosis | - | 48 |
| Had colonoscopy since diagnosis | - | 86 |
Note: CRC = colorectal cancer. % = percentage of observations.
Percentages may not add to 100 due to rounding.
a
Both samples exclude participants with missing stage, stage 0 or stage IV disease.
b
Primary care visits, CRC screening, and colonoscopy after diagnosis were only assessed during 4-year interview.