Table 2. Types of procedures and association with surgical site infections (SSI). P-values were obtained from Fisher’s Exact test, unless otherwise specified.

Type of procedure	Frequency of procedure	Frequency (%) of SSI	p
Axillary node clearance	52	1 (1.9%)	0.313
Mastectomy (unilateral)	84	4 (4.8%)	1.0
Mastectomy (bilateral)	12	2 (16.7%)	0.123
Sentinel node biopsy	120	5 (4.2%)	0.480*
Wide local excision	88	3 (3.4%)	0.552
Hook wire local excision	68	1 (1.5%)	0.196
Excision	27	2 (7.4%)	0.638
Reconstruction/expanders	6	0 (0.0%)	1.0
Implant insertion	1	0 (0.0%)	1.0
Microdochectomy	6	0 (0.0%)	1.0
Duct excision	5	0 (0.0%)	1.0
Lumpectomy	2	0 (0.0%)	1.0
Seed removal	1	0 (0.0%)	1.0
Soft tissue biopsy	3	1 (33.3%)	0.149
Abscess drainage	5	1 (20.0%)	0.236
Abscess incision	5	1 (20.0%)	0.236
Breast reduction	1	0 (0.0%)	1.0
Hematoma drainage	1	1 (100%)	0.052
DIEP flap breast reconstruction	6	1 (16.7%)	0.277
Wound exploration	2	0 (0.0%)	1.0
Seed localization	2	0 (0.0%)	1.0
Excision biopsy	20	0 (0.0%)	0.608
Re-excision	2	0 (0.0%)	1.0
Lipofilling	1	0 (0.0%)	1.0
Liposuction	1	0 (0.0%)	1.0

Notes.

^*p-value obtained from the Chi-square statistic.