Table 2.

Pathologic findings at initial diagnosis and number of reoperations

Covariation	Overall series (35 pts)	Single recurrence 24 pts (69%)	Multiple recurrences 11 pts (31%)	Statistical significance (p value)
WHO Grade
• I	11 (31%)	8 (33%)	3 (27%)	p = 0.44
• II	24 (69%)	16 (67%)	8 (73%)
Ki67 MIB1
• I: 0–4%	11 (31%)	8 (33%)	3 (27%)	p = 0.44
• II: 5–9%	9 (26%)	6 (25%)	3 (27%)	p = 0.87
• III: ≥ 10%	15 (43%)	10 (42%)	5 (46%)	p = 0.66
				I vs. II vs. III: p = 0.65
PR expression
• I: ≤ 30%	25 (70%)	18 (75%)	7 (64%)	p = 0.12
• II: 31–60%	5 (15%)	3 (12.5%)	2 (18%)	p = 0.43
• III: > 61%	5 (15%)	3 (12.5%)	2 (18%)	p = 0.43
				I vs. II vs. III: p = 0.31