Table 3.

Breast oncologic surgery procedures in the pandemic year 2020 and in the pre-pandemic year 2019 in the 3 subgroups: Lombardy; Northern Italy except Lombardy; Central and Southern Italy

Lombardy			2020	2019	p
Breast-conserving surgery	1st level oncoplasty		1406	1866	< 0.01
	2nd level oncoplasty		178	142	< 0.01
	Tot.		1584 (49%)	2008 (52%)	< 0.01
Mastectomy	Without reconstruction		371	372	< 0.01
	With immediate reconstruction	Tissue expander	620	822	< 0.01
		DTI	591	558	< 0.01
		Flap	79	83	ns
	Tot.		1661 (51%)	1835 (48%)	< 0.05
Tot.			3245	3843	< 0.01
Northern Italy except Lombardy			2020	2019	p
Breast-conserving surgery	1st level oncoplasty		1501	1809	< 0.01
	2nd level oncoplasty		276	329	ns
	Tot.		1777 (58%)	2138 (63%)	< 0.01
Mastectomy	Without reconstruction		448	460	ns
	With immediate reconstruction	Tissue expander	443	482	ns
		DTI	356	293	< 0.01
		Flap	14	18	ns
	Tot.		1261 (42%)	1253 (37%)	< 0.01
Tot.			3038	3391	ns
Central and Southern Italy			2020	2019	p
Breast-conserving surgery	1st level oncoplasty		1336	1247	ns
	2nd level oncoplasty		249	297	< 0.01
	Tot.		1585 (71%)	1544 (72%)	ns
Mastectomy	Without reconstruction		140	131	ns
	With immediate reconstruction	Tissue expander	129	185	< 0.01
		DTI	324	254	< 0.01
		Flap	48	35	ns
	Tot.		641 (29%)	605 (28%)	ns
Tot.			2226	2149	< 0.01

Data shown as absolute frequency. Chi-squared test for ordinal/binomial variables

DTI mastectomies with direct to implant

Bold emphasized values are statistically significant