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Survival at 10 years in women treated with tamoxifen for 5 years compared with control treatment (no tamoxifen): results of a systematic review (see text).
| Control (%) | Tamoxifen (%) | Absolute benefit (%) | SD (%) | Significance (two sided) | |
| Node +ve | 50.5 | 61.4 | +10.9 | 2.5 | P <0.00001 |
| Node –ve | 73.3 | 78.9 | +5.6 | 1.3 | P <0.00001 |
SD, standard deviation.
