Table 1.

Standard Incidence Ratios and 95% Confidence Intervals for Subsequent Primary Tumor in Breast Cancer Patients Who Lived Longer Than 10 Years

Second Primary Cancer Sites	Standard Incidence Ratio	95% Confidence Interval
All sites	1.42	1.39–1.44
Soft tissue sarcoma*	10.75	8.16–13.89
Bone	2.66	1.73–3.89
Myeloid leukaemia	2.11	1.78–2.49
Esophagus	2.09	1.80–2.42
Thyroid gland	1.86	1.57–2.19
Skin cancer except for melanoma	1.77	1.67–1.87
Ovary	1.75	1.63–1.88
Lung	1.68	1.59–1.78
Stomach	1.49	1.38–1.62
Leukemia	1.43	1.28–1.60
Corpus uteri	1.40	1.30–1.50
Oral cavity and pharynx	1.40	1.21–1.61
Melanoma	1.39	1.25–1.54
Non-Hodgkin’s lymphoma	1.39	1.26–1.54
Pancreas	1.32	1.20–1.44
Colorectal	1.30	1.24–1.36
Bladder	1.30	1.17–1.45
Kidney	1.27	1.14–1.42

Notes: *Soft tissue sarcoma of the upper limbs and chest including the shoulders. Reproduced wih permission from Mellemkjaer L, Friis S, Olsen JH, et al. Risk of second cancer among women with breast cancer. Int J Cancer.. 2005;118(9):2285–2292. Copyright © 2005 Wiley‐Liss, Inc.⁴