Table 3.
Correct responses to knowledge items for each sample
| |
Online |
Providers |
Clinic sample |
|
|---|---|---|---|---|
| |
Sample |
|
|
|
| Question (correct answer) |
DA |
No DA |
|
|
| N = 163 | N = 175 | N = 115 (%) | N = 94 (%) | |
| 1. At what age do doctors usually recommend people start getting regular tests for colon cancer? (50)* |
150 (92%) |
126 (72%) |
114 (99%) |
50 (53%) |
| 2. Out of every 100 people about how many will get colon cancer some time in their lives? (6)* |
109 (67) |
63 (36%) |
66 (57%) |
6 (6%) |
| 3. Does having a colon cancer test result that is not normal always mean that a person has colon cancer? (No) |
155 (95%) |
168 (96%) |
113 (98%) |
81 (86%) |
| 4. How often do serious problems, such as serious bleeding or a tear in the colon, happen as a result of a colonoscopy? (Rarely)* |
151 (93%) |
125 (71%) |
109 (95%) |
55 (59%) |
| 5. For a person with an average risk for colon cancer, which test do doctors recommend be done every year? (Stool blood test)* |
140 (86%) |
96 (55%) |
112 (97%) |
28 (30%) |
| 6. For a person with an average risk for colon cancer, which test do doctors recommend be done every 10 years? (Colonoscopy)* |
147 (90%) |
115 (66%) |
111 (97%) |
48 (51%) |
| 7. How does regular testing for colon cancer change the chances that a person will die from colon cancer? (Decreases chance) |
156 (96%) |
160 (91%) |
113 (98%) |
70 (75%) |
| 8. Which colon cancer test is least likely to miss a cancer? (Colonoscopy)* |
92 (56%) |
72 (41%) |
100 (87%) |
21 (22%) |
| 9. If the results of a colon cancer test are normal, is it possible that a person could still have colon cancer? (Yes) |
136 (83%) |
148 (85%) |
110 (96%) |
71 (76%) |
| 10. Out of every 100 people about how many will die of colon cancer? (3)* | 133 (82%) | 53 (30) | 73 (64%) | 12 (13%) |
DA = decision aid; *p < 0.05 for DA vs. no DA.