| Age in
Years (n) |
1991
Size mm (n) |
P |
1987
Size mm (n) |
P |
1997/98
Size mm (n) |
| <50 (96) |
19.4±12.6 (80) |
ns |
22.0±13.8 (98) |
ns |
22.8±13.5 (67) |
| 50-59 (102) |
19.3±13.6 (96) |
ns
|
21.6±11,9 (79) |
ns |
18.5±12,9 (119) |
| 60-69 (142) |
17.7±13.8 (130) |
<0.001
|
23.5±13,3 (120) |
p<0.0005 |
15.4±12.4 (70) |
| ≥70 (169) |
21.8±11.5 (108) |
ns |
22.5±13.3 (103) |
ns |
20.4±14.2 (89) |
Tumors from a control sample from 1987 and samples from 1991 and 1997/98 are sorted to four age intervals. The two screened age groups are flanked by those younger
than 50 years of age and those older than 70 years, neither of which were invited to the screening. The results shows a significant reduction of mean tumor size related
to screening only for women aged 60 to 69 years for both 1991 and 1997/98-samples. |