Table 1.
Comparison of participant characteristics by enrollment status.
| Characteristic | All (n=136), n (%) | Enrolled (n=38), n (%) | Refused (n=98), n (%) | P valuea | |||||
| Age (years) | .50 | ||||||||
|
|
<40 | 7 (5.2) | 3 (7.9) | 4 (4.1) |
|
||||
|
|
40-49 | 15 (11.0) | 4 (10.5) | 11 (11.2) |
|
||||
|
|
50-59 | 52 (38.2) | 15 (39.5) | 37 (37.8) |
|
||||
|
|
60-69 | 45 (33.1) | 13 (34.2) | 32 (32.7) |
|
||||
|
|
70+ | 17 (12.5) | 3 (7.9) | 14 (14.3) |
|
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| Sex | .003 | ||||||||
|
|
Female | 69 (50.7) | 27 (71.1) | 42 (42.9) |
|
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|
|
Male | 67 (49.3) | 11 (29.0) | 56 (57.1) |
|
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| Race | .18 | ||||||||
|
|
White | 114 (83.8) | 35 (92.1) | 79 (80.6) |
|
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|
|
Black | 7 (5.2) | 1 (2.6) | 6 (6.1) |
|
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|
|
Asian | 4 (2.9) | 2 (5.3) | 2 (2.0) |
|
||||
|
|
Other | 1 (0.7) | 0 (0) | 1 (1.0) |
|
||||
|
|
Refused | 10 (7.4) | 0 (0) | 10 (10.2) |
|
||||
| Ethnicity | .54 | ||||||||
|
|
Non-Hispanic | 131 (96.3) | 36 (94.7) | 95 (96.9) |
|
||||
|
|
Hispanic | 5 (3.7) | 2 (5.3) | 3 (3.1) |
|
||||
| Cancer site | .08 | ||||||||
|
|
Gastrointestinal | 40 (29.4) | 9 (23.7) | 31 (31.6) |
|
||||
|
|
Lung | 32 (23.5) | 12 (31.6) | 20 (20.4) |
|
||||
|
|
Urologic | 18 (13.2) | 2 (5.3) | 16 (16.3) |
|
||||
|
|
Colorectal | 14 (10.3) | 5 (13.2) | 9 (9.2) |
|
||||
|
|
Gynecologic | 11 (8.1) | 6 (15.8) | 5 (5.1) |
|
||||
|
|
Other | 21 (15.4) | 4 (10.5) | 17 (17.4) |
|
||||
| Cancer stage | .72 | ||||||||
|
|
0 | 7 (5.2) | 3 (7.9) | 4 (4.1) |
|
||||
|
|
I | 54 (39.7) | 14 (36.8) | 40 (40.8) |
|
||||
|
|
II | 27 (19.9) | 7 (18.4) | 20 (20.4) |
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||||
|
|
III | 26 (19.1) | 6 (15.8) | 20 (20.4) |
|
||||
|
|
IV | 7 (5.2) | 4 (10.5) | 3 (3.1) |
|
||||
|
|
Missing (or 88 or 99) | 15 (11.0) | 4 (10.5) | 11 (11.2) |
|
||||
aP value is based on t test for age, Mantel-Haenszel chi-square for clinical stage, and Pearson’s chi-square for all other variables.