Correctness of European women’s estimates of their age-specific risks of breast, ovarian, cervical and endometrial cancer before and after reading the leaflet
Correctness of women’s estimated age-specific risk of developing cancer within next 10 years | Percentage of responders (95% CI) | Sweden | ||||
All countries | Czech Republic | Germany | UK | Italy | ||
N=1675 | n=356 | n=335 | n=323 | n=338 | n=323 | |
n core*=984 | n core=221 | n core=191 | n core=183 | n core=197 | n core=192 | |
BREAST CANCER | ||||||
Before intervention | ||||||
Correct response† | 23.3 (21.3 to 25.4) | 20.8 (16.7 to 25.4) | 29.3 (24.4 to 34.4) | 18.1 (14.8 to 23.6) | 26.9 (22.3 to 32.0) | 20.7 (16.5 to 25.6) |
Correct/core age group* | 22.2 (19.6 to 24.9) | 20.4 (15.3 to 26.3) | 23.6 (17.7 to 30.2) | 22.4 (16.6 to 29.1) | 25.4 (19.5 to 32.1) | 19.3 (13.9 to 25.6) |
Overestimation‡ | 59.2 (56.8 to 61.6) | 59.0 (53.7 to 64.1) | 46.6 (41.1 to 52.1) | 71.2 (65.9 to 76.1) | 54.1 (48.7 to 59.5) | 65.9 (60.5 to 71.1) |
After intervention | ||||||
Correct response | 54.0 (51.6 to 56.4) | 47.5 (42.2 to 52.8) | 57.9 (52.4 to 63.3) | 55.7 (50.1 to 61.2) | 49.4 (44.0 to 54.9) | 60.4 (54.8 to 65.7) |
Overestimation | 20.5 (18.6 to 22.5) | 22.5 (18.2 to 27.2) | 14.6 (11.0 to 18.9) | 19.5 (15.3 to 24.3) | 22.2 (17.9 to 27.0) | 23.5 (19.0 to 28.5) |
OVARIAN CANCER | ||||||
Before intervention | ||||||
Correct response | 15.6 (13.9 to 17.4) | 13.2 (9.9 to 17.2) | 23.6 (19.1 to 28.5) | 11.1 (7.9 to 15.1) | 13.0 (9.6 to 17.1) | 17.0 (13.1 to 21.6) |
Overestimation | 81.6 (79.7 to 83.4) | 83.7 (79.5 to 87.4) | 70.7 (65.6 to 75.6) | 88.2 (84.2 to 91.5) | 84.3 (80.0 to 88.0) | 81.1 (76.4 to 85.2) |
After intervention | ||||||
Correct response | 52.7 (50.3 to 55.1) | 44.9 (39.7 to 50.3) | 60.9 (55.4 to 66.2) | 53.3 (48.3 to 59.2) | 44.1 (38.7 to 49.6) | 61.3 (55.8 to 66.6) |
Overestimation | 43.5 (41.1 to 45.9) | 51.1 (45.8 to 56.4) | 33.4 (28.4 to 38.8) | 42.7 (37.4 to 48.0) | 52.4 (46.9 to 57.8) | 37.2 (31.9 to 42.7) |
CERVICAL CANCER | ||||||
Before intervention | ||||||
Correct response | 6.8 (5.6 to 8.1) | 6.2 (3.9 to 9.2) | 11.9 (8.7 to 15.9) | 3.4 (1.7 to 6.0) | 5.6 (3.4 to 8.6) | 6.8 (4.3 to 10.1) |
Overestimation | 91.8 (90.3 to 93.0) | 92.1 (88.8 to 94.7) | 84.8 (80.5 to 88.4) | 96.6 (94.0 to 98.3) | 92.6 (89.3 to 95.2) | 92.9 (89.5 to 95.4) |
After intervention | ||||||
Correct response | 33.8 (31.8 to 36.1) | 27.8 (23.2 to 32.8) | 40.6 (35.3 to 46.1) | 35.6 (30.4 to 41.1) | 26.9 (22.3 to 32.0) | 38.7 (33.4 to 44.2) |
Overestimation | 65.6 (63.2 to 67.8) | 71.3 (66.3 to 76.0) | 57.6 (52.1 to 63.0) | 64.4 (58.9 to 69.6) | 72.5 (67.4 to 77.2) | 61.3 (55.8 to 66.6) |
ENDOMETRIAL CANCER | ||||||
Before intervention | ||||||
Correct response | 12.7 (11.1 to 14.3) | 10.1 (7.2 to 13.7) | 19.4 (15.3 to 24.1) | 9.6 (6.6 to 13.3) | 10.7 (7.6 to 14.4) | 13.6 (10.1 to 17.9) |
Overestimation | 82.3 (80.4 to 84.1) | 84.8 (80.7 to 88.4) | 73.7 (68.7 to 78.4) | 85.1 (80.8 to 88.8) | 84.6 (80.3 to 88.3) | 83.0 (78.4 to 86.9) |
After intervention | ||||||
Correct response | 49.4 (47.0 to 51.8) | 43.3 (38.0 to 48.6) | 61.2 (55.7 to 66.4) | 52.6 (47.0 to 58.2) | 35.5 (30.4 to 40.9) | 55.1 (49.5 to 60.6) |
Overestimation | 42.8 (40.4 to 45.2) | 50.0 (44.7 to 55.3) | 30.4 (25.6 to 35.7) | 38.1 (32.8 to 43.6) | 56.8 (51.3 to 62.2) | 37.8 (32.5 to 43.3) |
Presented as the overall proportion of correct responses and overall proportion of overestimation per country.
*n core =women in the core age group (50–69 years) eligible for mammography screening in the five European countries.
†Correct response of age-specific cancer risk=50% margin of error of the actual age-specific cancer risk based on the population-based cancer registration dataset of the Robert Koch institute (www.krebsdaten.de).
‡Overestimation of age-specific cancer risk=>50% margin of error of the actual age-specific cancer risk based on the population-based cancer registration dataset of the Robert Koch institute (www.krebsdaten.de).