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Table 1 Summary of presenting symptoms

From: Development and validation of a clinical prediction rule to identify suspected breast cancer: a prospective cohort study

Symptom* Frequency of symptom in entire population (n = 7,501) Frequency of symptom in those with breast cancer (n = 357) Frequency of symptom in those without breast cancer (n = 7,144)
Abscess 2.3% (n = 173) 1.1% (n = 4) 2.3% (n = 169)
Discomfort 0.8% (n = 61) 0% (n = 0) 0.9% (n = 61)
Inflammation 2.3% (n = 173) 1.1% (n = 4) 2.3% (n = 169)
Family history** 33.0% (n = 2,487) 29.0% (n = 104) 39.8% (n = 2,383)
Lump 49.8% (n = 3,735) 74.8% (n = 267) 48.5% (n = 3,468)
Nipple changes 4.1% (n = 306) 7.8% (n = 28) 3.9% (n = 278)
Skin changes 1.1% (n = 84) 2.5% (n = 9) 1.0% (n = 75)
Nipple discharge 3.5% (n = 263) 4.2% (n = 15) 3.5% (n = 248)
Ulceration 1.1% (n = 84) 2.5% (n = 9) 1.0% (n = 75)
Nodularity 0.2% (n = 14) 0.3% (n = 1) 0.2% (n = 13)
Mastalgia 33.2% (n = 2,488) 10.4% (n = 37) 34.3% (n = 2,451)
  1. *Patients may present with more than one symptom.
  2. **Unknown/not stated (n = 1,221).