Table 2 Preintervention knowledge
Question | Answer categories | n (%) |
|---|---|---|
1. Mammography screening has the following aim | Avoid breast cancer | 1 (0.2) |
Detect breast cancer early | 520 (98.5) | |
Treat breast cancer | 1 (0.2) | |
Don’t know | 6 (1.1) | |
2. If the screening result is negative (no abnormality on the X-ray), this means there is definitely no cancer | Correct | 69 (13.1) |
Not correct | 385 (72.9) | |
Don’t know | 73 (13.8) | |
3. Imagine 2000 women are screened regularly for 10 years. How many will experience pain during the screening? | None | 79 (15.0) |
1–4 | 28 (5.3) | |
5–12 | 23 (4.4) | |
13–33 | 36 (6.8) | |
34–90 | 60 (11.4) | |
91–245 | 66 (12.5) | |
246–665 | 63 (11.9) | |
666–2000 | 67 (12.7) | |
Don’t know | 103 (19.5) | |
4. Imagine 2000 women are screened regularly for 10 years. How many will experience a false alarm? | None | 4 (0.8) |
1–4 | 14 (2.7) | |
5–12 | 50 (9.5) | |
13–33 | 82 (15.5) | |
34–90 | 115 (21.8) | |
91–245 | 125 (23.7) | |
246–665 | 40 (7.6) | |
666–2000 | 8 (1.5) | |
Don’t know | 89 (16.9) | |
5. Imagine 2000 women are screened regularly for 10 years. How many will become breast cancer patients (confirmed by further examinations)? | None | – |
1–4 | 3 (0.6) | |
5–12 | 21 (4.0) | |
13–33 | 67 (12.7) | |
34–90 | 89 (16.9) | |
91–245 | 159 (30.1) | |
246–665 | 94 (17.8) | |
666–2000 | 6 (1.1) | |
Don’t know | 88 (16.7) | |
6. Imagine 2000 women are screened regularly for 10 years. How many will be treated for breast cancer unnecessarily? | None | 136 (25.8) |
1–4 | 89 (16.9) | |
5–12 | 86 (16.3) | |
13–33 | 65 (12.3) | |
34–90 | 45 (8.5) | |
91–245 | 7 (1.3) | |
246–665 | 3 (0.6) | |
666–2000 | 1 (0.2) | |
Don’t know | 93 (17.6) | |
7. Imagine 2000 women are screened regularly for 10 years. How many will avoid dying from breast cancer? | None | 0 (0.0) |
1–4 | 14 (2.7) | |
5–12 | 29 (5.5) | |
13–33 | 38 (7.2) | |
34–90 | 86 (16.3) | |
91–245 | 99 (18.8) | |
246–665 | 91 (17.2) | |
666–2000 | 66 (12.5) | |
Don’t know | 104 (19.7) |