Table 2.
Socio-demographic and clinical characteristics for cases and controls
| Characteristic |
Cases (n = 284) |
Controls (n = 395) |
p-value |
|---|---|---|---|
| Mean age (SD) |
72.4 (10.3) |
71.1 (11.2) |
0.13 |
| Male gender (%) |
58.7 |
59.0 |
0.95 |
| Race/Ethnicity (%) | |||
| White, non-Hispanic | 74.8 | 78.9 | 0.22 |
| Black, non-Hispanic | 3.6 | 3.6 | |
| Hispanic/Latino | 7.5 | 3.6 | |
| Asian | 9.6 | 8.4 | |
| Other/Unknown/Mixed |
4.6 |
5.6 |
|
| Education (%) | |||
| Not a high school graduate | 12.5 | 9.9 | 0.77 |
| High school graduate | 26.7 | 22.9 | |
| Vocational school degree | 5.3 | 6.8 | |
| Some college, no degree | 22.4 | 25.2 | |
| College graduate | 16.4 | 17.1 | |
| Some graduate school, no degree | 6.1 | 7.0 | |
| Graduate school degree |
10.7 |
11.2 |
|
| Annual Household Income (%) | |||
| $15,000 or less | 10.1 | 7.1 | 0.22 |
| $15,001 to $30,000 | 25.9 | 21.5 | |
| $30,001 to $50,000 | 25.5 | 27.1 | |
| $50,001 to $75,000 | 15.7 | 16.5 | |
| $75,001 to $100,000 | 9.4 | 7.9 | |
| More than $100,000 | 4.9 | 7.9 | |
| Unknown/no answer |
8.4 |
12.2 |
|
| Married/Partnered Prior to Surgery (%) |
74.7 |
77.4 |
0.41 |
| Married/Partnered Currently (%) |
62.8 |
65.1 |
0.54 |
| Employment (%) | |||
| Full-time | 11.9 | 15.7 | 0.48 |
| Part-time | 8.7 | 7.1 | |
| Retired | 75.2 | 72.7 | |
| Unemployed/unknown |
4.2 |
4.6 |
|
| Years since surgery | |||
| Median | 9.6 | 10.0 | 0.74* |
| Inter-quartile range (25th to 75th) |
6.2 − 15.2 |
6.8 − 14.0 |
|
| Charlson-Deyo Comorbidity Score (SD) |
1.8 (2.0) |
1.4 (1.7) |
0.002 |
| Tumor Location (%) | |||
| Colon | 11.8 | 37.5 | <0.001 |
| Rectum | 88.2 | 62.5 |
*
Mann-Whitney test