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. 2011 May 3;104(11):1680–1685. doi: 10.1038/bjc.2011.144

Table 4. 10-year survival for women aged 50–64 years with symptomatic and screen-detected invasive breast tumours by histological grade of tumour.

    Screen detected
  Symptomatic
  10-year survival (%)
Grade N (%) 10-year survival (%) N (%) Unadjusted for lead time Difference from symptomatic Adjusted for lead time Difference from symptomatic
1 1099 (12.6) 87.3 2045 (31.9) 95.1 7.8 88.9 1.6
2 3719 (42.7) 68.1 3038 (47.4) 85.6 17.5 77.8 9.7
3 3898 (44.7) 55.4 1327 (20.7) 68.5 13.1 60.5 5.1
Overall 8716 (100) 64.8 6410 (100) 85.0 20.2 77.4 12.6