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Table 4 A multivariate logistic regression of the risk factors of seroma (Grade 2–3)

From: Quilting suture is better than conventional suture with drain in preventing seroma formation at pectoral area after mastectomy

ParameterSeroma (Grade 2–3, early)Seroma (Grade 2–3, late)
OR (95% CI)p valueOR (95% CI)p value
Age (year) (≥60 vs < 60)1.015–1.1860.0191.006–1.1140.029
BMI (kg/m2) (≥25 vs < 25)1.176–2.0970.0021.217–1.795< 0.001
Hypertension0.084–2.1160.4230.158–2.4490.497
Diabetes0.078–128.9940.5410.022–2.0150.176
Neoadjuvant chemotherapy0.072–24.5050.8470.170–3.4680.732
ME+ALND (Yes vs No)0.129–11.5090.8640.056–2.1770.259
Quilting (Yes vs No)0.342–6.6490.5880.068–0.7190.012
  1. ME Mastectomy, SLN Sentinel lymph node biopsy, BMI Body mass index
  2. Old age and high BMI were independent risk factors for early and late seroma in Grade 2–3 (p < 0.05 both). Quilting suture was protective factor for late seroma formation in Grade 2–3 (p < 0.05).