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Table 4 Comparison of the overall survival among different age groups (log-rank)

From: Characterization and prognosis of estrogen receptor-positive/progesterone receptor-negative male breast cancer: a population-based study

PR status Age at diagnosis ≤ 40 41–55 56–70 71–85 > 85 Survival months
P value P value P value P value P value Mean ± SD
Positive ≤ 40   0.800 0.154 < 0.001 < 0.001 184.0 ± 14.3
41–55 0.800   0.010 < 0.001 < 0.001 193.7 ± 6.7
56–70 0.154 0.010   < 0.001 < 0.001 153.3 ± 4.9
71–85 < 0.001 < 0.001 < 0.001   < 0.001 91.2 ± 3.1
> 85 < 0.001 < 0.001 < 0.001 < 0.001   48.8 ± 3.3
Negative ≤ 40   0.951 0.772 0.088 0.024 164.7 ± 31.3
41–55 0.951   0.738 0.001 < 0.001 117.50 ± 8.0
56–70 0.772 0.738   < 0.001 < 0.001 129.2 ± 9.3
71–85 0.088 0.001 < 0.001   0.037 78.6 ± 6.4
> 85 0.024 < 0.001 < 0.001 0.037   44.4 ± 8.1