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Table 1 HER2 status in patients with available HER2 testing results between 2007 and 2013

From: Frequency and clinical characteristics of HER2 over-expressed breast cancer in Saudi Arabia: a retrospective study

N Positive Negative Total
559 1308 1867
HER2 status with 95% CI 29.9% (27.9–32.0%) 70.1% (68.0–72.1%) 100%
Per site distribution: n (%)
King Faisal Specialist Hospital and Research Center Gen. Org. (Jeddah) 210 (29.1%) 511 (70.9%) 721 (100%)
King Abdullah International Medical Research Center [KAIMRC]—King Abdulaziz Medical City (Riyadh) 237 (31.1%) 526 (68.9%) 763 (100%)
King Fahad Specialist Hospital (Dammam) 112 (29.2%) 271 (70.8%) 383 (100%)
  1. CI confidence interval