“Clinical significance of multifocal and multicentric breast cancers and choice of surgical treatment: a retrospective study on a series of 1158 cases”

Table 7 Sites of breast cancer recurrence according to the type of surgery and the presence of multifocal and multicentric breast cancers

		num.	Local		Regional		Distant
Breast conserving surgery
	unicentric	491	29 (5.9)	p 0.32	8 (1.6)	p 0.05	55 (11.2)	p 0.03
	multifocal/ multicentric	36	3 (8.3)*		2 (5.6)§		7 (19.4)°
Mastectomy
	unicentric	476	27 (5.7)	p 0.11	18 (3.8)	p 0.003	91 (19.1)	p 0.011
	multifocal/ multicentric	155	12 (7.7)*		11 (7.1)§		42 (27.1)°
Total
	unicentric	967	56 (5.8)	p 0.05	26 (2.7)	p 0.002	146 (15.1)	p < 0.001
	multifocal/ multicentric	191	15 (7.8)		13 (6.9)		49 (25.7)

Number in parentheses are percentages.
*Difference statistically not significant between breast conserving surgery and mastectomy for local recurrence (p 0.92).
^§Difference statistically not significant between breast conserving surgery and mastectomy for regional recurrence (p 0.63).
°Difference statistically not significant between breast conserving surgery and mastectomy for distant recurrence (p 0.31).

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