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Presentations of BC patients treated in the DSO in groups A and B relating to the occurrence of tumors < 15 mm between 2007 and 2010
| Year | Group A | Group B | P-value (χ2 test, one sided) (H0: A ≤ B) |
|---|---|---|---|
| 2007 | 17 (35.4%) | 30 (30.3%) | 0.331 |
| 2008 | 16 (44.4%) | 22 (37.9%) | 0.341 |
| 2009 | 30 (52.6%) | 39 (39.8%) | 0.083 |
| 2010 | 29 (45.3%) | 28 (30.8%) | 0.037 |
| 2007 + 2008 | 33 (39.2%) | 52 (33.1%) | 0.2081 |
| 2009 + 2010 | 59 (48.8%) | 66 (35.1%) | 0.011 |
| Σ | 92 (44.9%) | 118 (34.4%) | 0.008 |
