Evaluation of preoperative antibiotic prophylaxis in clean-wound general surgery procedures: a propensity score-matched cohort study at a regional hospital

Table 1 Participant characteristics

	Pre-operative antibiotic prophylaxis (n = 417)
Patient characteristic, n (%)	Not Received (n = 184)	Received (n = 233)	p-value
Age (years, Mean ± SD)	55.0 ± 14.4	57.8 ± 15.0	0.058
Male	51 (27.7)	104 (44.6)	0.001
BMI (Mean ± SD)	24.1 ± 4.5	23.8 ± 4.1	0.546
BMI ≥ 27.5 kg/m²	35 (19.0)	47 (20.2)	0.805
Active smoking	20 (10.9)	36 (15.5)	0.194
Diabetes Mellitus	32 (17.4)	36 (15.5)	0.596
ASA status III	56 (30.4)	78 (33.5)	0.528
Type of surgery			< 0.001
- Skin/ Subcutaneous	10 (5.4)	27 (11.6)
- Inguinal hernia^a	47 (25.5)	101 (43.4)
Using mesh	20 (10.9)	71 (30.5)
- Thyroid	52 (28.3)	28 (12.0)
- Mastectomy or MRM	75 (40.8)	77 (33.1)
Estimated blood loss (ml, Mean ± SD)	51.9 ± 64.6	47.0 ± 62.4	0.437
Blood Transfusion	2 (1.1)	0 (0.0)	0.194
Operative time (minutes, Mean ± SD)	73.0 ± 37.4	73.0 ± 44.4	0.988
Complications	27 (14.7)	19 (8.2)	0.041
Surgical site infection	4 (2.2)	3 (1.3)	0.704

ASA American Society of Anesthesiology, BMI Body Mass Index, MRM Modified Radical Mastectomy, SD Standard Deviation
^aUsing mesh 91 (61.5%): Received antibiotics prophylaxis in 71 cases (78.0%)

ISSN: 1471-2482