Table 1.
Baseline study characteristics of colorectal cancer patients
| Baseline*
(n=2961) |
Follow-up*,†
(n=2303) |
||||
|---|---|---|---|---|---|
| No. | % | No. | % | ||
| Race | |||||
| White | 2060 | 69.57 | 1671 | 72.56 | |
| African American | 459 | 15.50 | 345 | 14.98 | |
| Hispanic | 265 | 8.95 | 184 | 7.99 | |
| Asian | 177 | 5.98 | 103 | 4.47 | |
| Age‡ | |||||
| ≤54 years | 774 | 26.14 | 580 | 25.18 | |
| 55 to 64 years | 745 | 25.16 | 591 | 25.66 | |
| 65 to 74 years | 787 | 26.58 | 627 | 27.23 | |
| ≥75 years | 655 | 22.12 | 505 | 21.93 | |
| Sex‡ | |||||
| Male | 1602 | 54.10 | 1259 | 54.67 | |
| Female | 1359 | 45.90 | 1044 | 45.33 | |
| Income‡ | |||||
| <$20,000 | 718 | 24.25 | 527 | 22.88 | |
| $20,000 to <$40,000 | 740 | 24.99 | 579 | 25.14 | |
| $40,000 to <$60,000 | 470 | 15.87 | 387 | 16.80 | |
| >$60,000 | 762 | 25.73 | 626 | 27.18 | |
| Education‡ | |||||
| Less than high school | 469 | 15.84 | 336 | 14.59 | |
| High school graduate/GED | 838 | 28.30 | 640 | 27.79 | |
| Some college/ vocational school | 784 | 26.48 | 625 | 27.14 | |
| College degree or higher | 857 | 28.94 | 692 | 30.05 | |
| Covered by insurance‡ | |||||
| No | 84 | 2.84 | 57 | 2.48 | |
| Yes | 2869 | 97.89 | 2241 | 97.31 | |
| Comorbid conditions§ | |||||
| No | 1620 | 54.82 | 1412 | 61.31 | |
| Yes | 1335 | 45.18 | 887 | 38.51 | |
| Depression | |||||
| No | 2387 | 80.61 | 1848 | 80.24 | |
| Yes | 562 | 18.98 | 447 | 19.41 | |
| Stage at diagnosis | |||||
| Stage I | 674 | 22.76 | 554 | 24.06 | |
| Stage II | 806 | 27.22 | 647 | 28.09 | |
| Stage III | 832 | 28.10 | 674 | 29.27 | |
| Stage IV | 421 | 14.22 | 270 | 11.72 | |
| Time since diagnosis (days) | |||||
| Mean (SD) | 144 | (53) | 440 | (121) | |
| (Range) | (41-364) | (269-1170) | |||
| Surgery | |||||
| No | 209 | 7.06 | 87 | 3.78 | |
| Yes | 2749 | 92.84 | 2214 | 96.14 | |
| Treatment | |||||
| Neither | 1380 | 46.61 | 1031 | 44.77 | |
| Radiation | 19 | 0.64 | 16 | 0.69 | |
| Chemotherapy | 1146 | 38.70 | 887 | 38.51 | |
| Both | 409 | 13.81 | 365 | 15.85 | |
| Stoma | |||||
| No | 2605 | 87.98 | 2043 | 88.71 | |
| Yes | 352 | 11.89 | 258 | 11.20 | |
| Brief Pain Inventory: In the last 4 weeks.. | |||||
| Pain severity at its least | |||||
| Mean (SD) | 0.76 | (1.63) | 1.98 | (2.06) | |
| Range | (0-10) | ||||
| Pain severity on average | |||||
| Mean (SD) | 1.45 | (2.29) | 3.80 | (2.08) | |
| Range | (0-10) | (0-10) | |||
| Pain severity at its worst | |||||
| Mean (SD) | 2.29 | (3.37) | 5.95 | (2.45) | |
| Range | (0-10) | (0-10) | |||
| Pain medication use | |||||
| Yes | 778 | 26.27 | 602 | 26.14 | |
| No | 2176 | 73.49 | 1699 | 73.77 | |
*
Percentages may not total 100% due to missing values. Missing was less than 10% on all variables;
†
Participants’ demographic and clinic characteristic were not statistically significantly different at baseline and follow-up (p>0.05); except for time since diagnosis (p<0.0001) and pain severity at its least (p=0.03);
‡
Chi-square test results show that these sociodemographic factors are all significantly different by race/ethnicity, age, sex, income and education (all p-value <0.001) and insurance (p=0.02).
§
Comorbid conditions assessed included heart attack, heart failure, stroke, diabetes, pulmonary function problems (emphysema), kidney disease, diabetes, Crohn’s disease