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Table 4 Risk factors for seroma (grades 2–3)

From: Conventional suture with prolonged timing of drainage is as good as quilting suture in preventing seroma formation at pectoral area after mastectomy

Parameter

Seroma (grades 2–3)

OR (95% CI)

p value

Age (year) (≥ 60 or <60)

3.020–19.811

<0.001

BMI (kg/m2) (≥25 or <25)

5.422–38.972

<0.001

Hypertension

1.346–10.208

0.011

Diabetes

0.061–4.295

0.537

Neoadjuvant chemotherapy

0.142–2.317

0.436

Suture type

 Group 2 vs group 1

0.200–1.658

0.307

 Group 3 vs group 1

0.138–1.397

0.164

  1. ME mastectomy, BMI body mass index
  2. A multivariate logistic regression of the risk factors of seroma (grades 2–3). Old age, high BMI, and hypertension were independent risk factors for early and late seroma in grades 2–3 (p < 0.05). Different suture types with various duration of drainage system did not influence grades 2 and 3 seroma formation