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. 2011 May 17;104(12):1913–1919. doi: 10.1038/bjc.2011.164

Table 3. Incidence of relapses and overall and breast cancer-related deaths in early breast cancer patients, in total and according to CTC status at diagnosis.

Patients (n) Total (%), n=82 CTC- negative (within group %), n=66 CTC- positive (within group %), n=16 P-value
Relapse of disease
 No 70 (85) 60 (91) 10 (63) 0.010
 Yes 12 (15) 6 (9) 6 (38)  
         
Overall survival
 Alive 74 (90) 59 (89) 15 (94) 1.000
 Death 8 (10) 7 (11) 1 (6)  
         
Breast cancer-related survival
 Alive 74 (90) 59 (89) 15 (94) 0.686
 Death, breast cancer related 5 (6) 4 (6) 1 (6)  
 Death, other cause 3 (4) 3 (5) 0 (0)  

Abbreviation: CTC-positive or CTC-negative=positive or negative circulating tumour cell status according to quadratic discriminant analysis (QDA) score.

Significant P-values are shown in bold.