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Table 2 Univariate analysis of YY1 expression and clinical pathological characteristics of patients

From: YY1 overexpression is associated with poor prognosis and metastasis-free survival in patients suffering osteosarcoma

Clinical features Number of cases 41 YY1(low) (0-50% positive cells) 16 cases (39.0%) YY1 (strong) (51%-100% positive cells) 25 cases (61.0%) p
Age (4-76) 19.4 ± 15.6 24.4 ± 19.1 16.2 ± 12.0 0.099
Gender     
Male 68.3 62.5 72.0 0.524
Chemonecrosis ≥ 90% 36.6 37.5 36.0 0.923
Synchronous metastasis (%) 34.1 25.0 40.0 0.323
Metachronous metastasis (%) * 55.6 25.0 80.0 0.004
Mean time to metastasis (range 3-76 months) 29.4 ± 19.2 37.6 ± 22.9 22.9 ± 13.1 0.047
Mortality 46.3 18.8 64.0 0.005
Mean follow-up (range 3-95 months) 47.0 ± 25.3 49.8 ± 27.5 45.2 ± 24.2 0.578
  1. * Data reported are from the 27 patients free of metastasis at baseline