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01.01.2008 | Erratum
Unequal risks for breast cancer associated with different hormone replacement therapies: results from the E3N cohort study
Erschienen in: Breast Cancer Research and Treatment | Ausgabe 2/2008
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Unfortunately a Table with errors was published in the article. Please find here the corrected data.
Table 1
Selected baseline characteristics of participants overall and according to whether or not they had used HRT as recorded at the end of follow-up
|
All (n = 80,377) n (%) or mean (SD)
|
HRT never-users (n = 23,703) n (%) or mean (SD)
|
HRT ever-users (n = 56,674) n (%) or mean (SD)
|
|
|---|---|---|---|
|
Year of birth
|
|||
|
[1925–1930]
|
6,617 (8.2%)
|
4,003 (16.9%)
|
2,614 (4.6%)
|
|
[1930–1935]
|
11,066 (13.8%)
|
4,601 (19.4%)
|
6,465 (11.4%)
|
|
[1935–1940]
|
16,377 (20.4%)
|
4,052 (17.1%)
|
12,325 (21.7%)
|
|
[1940–1945]
|
20,673 (25.7%)
|
3,960 (16.7%)
|
16,713 (29.5%)
|
|
≥1945
|
25,644 (31.9%)
|
7,087 (29.9%)
|
18,557 (32.7%)
|
|
Age at start of follow-up, years
|
53.1 (4.5)
|
55.0 (4.8)
|
52.3 (4.1)
|
|
Age at menarche, years
|
|||
|
<13
|
37,498 (46.7%)
|
11,116 (46.9%)
|
26,382 (46.6%)
|
|
≥13
|
42,879 (53.3%)
|
12,587 (53.1%)
|
30,292 (53.4%)
|
|
Parity
|
|||
|
Nulliparous
|
9,747 (12.1%)
|
3,400 (14.3%)
|
6,347 (11.2%)
|
|
Parous, first child before 30, 1 or 2 children
|
39,892 (49.6%)
|
10,615 (44.8%)
|
29,277 (51.7%)
|
|
Parous, first child before 30, 3+ children
|
22,594 (28.1%)
|
7,071 (29.8%)
|
15,523 (27.4%)
|
|
Parous, first child after 30
|
8,144 (10.1%)
|
2,617 (11.0%)
|
5,527 (9.8%)
|
|
Breastfeeding, monthsa
|
|||
|
Never
|
20,682 (29.3%)
|
5,711 (28.1%)
|
14,971 (29.7%)
|
|
<12
|
38,539 (54.6%)
|
10,178 (50.1%)
|
28,361 (56.4%)
|
|
≥12
|
3,906 (5.5%)
|
1,549 (7.6%)
|
2,357 (4.7%)
|
|
Unknown
|
7,503 (10.6%)
|
2,865 (14.1%)
|
4,638 (9.2%)
|
|
Age at menopause, years
|
50.2 (3.7)
|
50.7 (3.9)
|
50.1 (3.6)
|
|
Type of menopause
|
|||
|
Artificial
|
6,611 (8.2%)
|
1,831 (7.7%)
|
4,780 (8.4%)
|
|
Natural/Unknown
|
73,766 (91.8%)
|
21,872 (92.3%)
|
51,894 (91.6%)
|
|
Personal history of benign breast disease
|
|||
|
Yes
|
21,259 (26.4%)
|
5,561 (23.5%)
|
15,698 (27.7%)
|
|
No
|
59,118 (73.6%)
|
18,142 (76.5%)
|
40,976 (72.3%)
|
|
Family history of breast cancer in first degree relatives
|
|||
|
Yes
|
9,256 (11.5%)
|
2,970 (12.5%)
|
6,286 (11.1%)
|
|
No
|
71,121 (88.5%)
|
20,733 (87.5%)
|
50,388 (88.9%)
|
|
Body mass index, kg/m2
|
|||
|
≤20
|
11,231 (13.4%)
|
2,697 (11.4%)
|
8,534 (15.1%)
|
|
[20–25]
|
50,912 (63.3%)
|
13,382 (56.5%)
|
37,530 (66.2%)
|
|
[25–30]
|
14,649 (18.2%)
|
5,730 (24.2%)
|
8,919 (15.7%)
|
|
>30
|
3,585 (4.5%)
|
1,894 (8.0%)
|
1,691 (3.0%)
|
|
Total physical activity, MET-h/wkb
|
|||
|
<34
|
19,536 (24.3%)
|
5,984 (25.2%)
|
13,552 (23.9%)
|
|
[34–47]
|
20,935 (26.1%)
|
5,868 (24.8%)
|
15,067 (26.6%)
|
|
[47–62]
|
19,957 (24.8%)
|
5,818 (24.5%)
|
14,139 (24.9%)
|
|
≥62
|
19,949 (24.8%)
|
6,033 (25.5%)
|
13,916 (24.6%)
|