Table 3.
Summary descriptives for each barrier/facilitator item and composite scale (weighted n = 957).
| % (95% CI) for item | Mean (SD) for scale | |
|---|---|---|
| Health motivation (scale, range 0–16)a | 12.62 (2.69) | |
| This test would make me feel I was doing something positive about my health | 86.5 (84.1–88.5) | |
| I would want this test even if I felt healthy | 82.5 (79.9–84.8) | |
| This test would give me reassurance | 79.1 (76.4–81.6) | |
| I would not need a test if I did not have any symptoms | 3.0 (2.1–4.3) | |
| Benefits of blood tests (scale, range 0–16)a | 12.99 (2.73) | |
| Blood tests are familiar to me | 86.7 (84.4–88.8) | |
| I am used to having blood tests | 76.6 (73.7–79.1) | |
| Blood tests are quick | 92.9 (91.1–94.4) | |
| Blood tests are safe | 92.7 (90.9–94.2) | |
| Disadvantages of blood tests (scale, range 0–16)a | 4.25 (3.43) | |
| I am afraid of needles | 12.5 (10.6–14.8) | |
| I find blood tests uncomfortable | 19.7 (17.3–22.4) | |
| Blood tests are painful | 8.2 (6.6–10.1) | |
| I am afraid of the sight of my own blood | 7.4 (5.9–9.3) | |
| Fear of outcome (scale, range 0–12)a | 5.44 (3.09) | |
| I would be frightened of what the test might find | 45.0 (41.9–48.2) | |
| This test would make me worry about having cancer | 32.0 (29.1–35.1) | |
| I would be afraid of having treatment if cancer was found | 29.2 (26.4–32.2) | |
| Practical barriers (scale, range 0–12)a | 2.15 (1.99) | |
| I would find it difficult to get an appointment at a time that suits me | 10.3 (8.5–12.4) | |
| I would find it difficult to travel to an appointment at my GP surgery | 3.2 (2.3–4.6) | |
| I would be too busy to have a blood test | 1.2 (0.6–2.1) | |
| Concern about a ‘positive’ result (scale, range 0–24)b | 4.74 (4.41) | |
| Feeling worried about having a cancer marker found in my blood | 24.9 (22.3–27.8) | |
| Needing to have follow-up tests if a cancer marker was found | 19.6 (17.2–22.3) | |
| Being anxious if I needed follow-up tests | 25.3 (22.7–28.2) | |
| Needing to have a scan at a hospital | 12.8 (10.9–15.1) | |
| Needing to have an endoscopy (where a small camera is put inside your body) | 29.2 (26.4–32.2) | |
| Needing to have follow-up tests and then no cancer being found | 9.9 (8.2–12.0) | |
| Individual itemsa | ||
| I would need to know more about how the test works | 39.6 (36.5–42.8) | |
| I would not trust the blood test results | 2.8 (1.9–4.0) | |
| I would have more important things to worry about than this test | 7.4 (5.9–9.3) | |
a% of participants who responded agree or strongly agree (items assessed after introductory information);
b% of participants who felt this would put them off MCED screening ‘quite a bit’ or ‘a great deal’ (items assessed after additional information).
Note: The number and percentage of participants indicating each response are available as in Supplementary Tables 1 and 2.