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Table 1 Clinical characteristics of the study population stratified by permission to contact GP

From: Cardiac late events in German breast cancer patients: a validation study on the agreement between patient self-reports and information from physicians

Clinical characteristic   No
Denied Consent
Yes
Gave consent
Age at breast cancer diagnosis (years) mean
SDa
58.6
11.6
55.2
10.6
Age at questionnairesurvey (years) Mean
SD
69.4
11.7
65.9
10.7
Follow-up (years) median 9.62 9.17
T-stage (N, %) 0/1
2
3
4
In situ
Unknown
507 (53.7%)
264 (27.9%)
35 (3.7%)
30 (3.2%)
88 (9.3%)
21 (2.2%)
727 (55.2%)
380 (28.9%)
39 (3.0%)
25 (1.9%)
109 (8.3%)
36 (2.7%)
N-stage (N, %) 0
1
2
3
X
587 (62.1%)
217 (23.0%)
38 (4.0%)
27 (2.9%)
76 (8.0%)
829 (63.0%)
318 (24.2%)
58 (4.4%)
29 (2.2%)
82 (6.2%)
Chemotherapy (N, %) Yes
No
Unknown
515 (54.5%)
399 (42.2%)
31 (3.3%)
604 (45.9%)
671 (51.0%)
41 (3.1%)
Radiotherapy (N,%) Yes
No
Unknown
737 (78.0%)
166 (17.6%)
42 (4.4%)
1090 (82.8%)
174 (13.2%)
52 (4.0%)
Type of surgery (N, %) None
Breast conserving
Mastectomy
Unknown
3 (0.3%)
751 (79.5%)
190 (20.1%)
1 (0.1%)
8 (0.6%)
1067 (81.1%)
241 (18.3%)
0 (0.0%)
History of cardiac event (N, %) Yes
No
174 (18.4%)
771 (81.6%)
220 (16.7%)
1096 (83.3%)
Total N = 2261   945 1316
  1. aSD Standard deviation