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Table 2 Outcome comparisons between quilting and conventional suture groups

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

  Conventional suture n = 119Quilting suture n = 116P value
Seroma (Grade 1, early)n(%)6 (5.0)14 (12.1)0.054
Seroma (Grade 2–3, early)n(%)5 (4.2)6 (5.2)0.725
Seroma (Grade 1, late)n(%)2 (1.7)7 (6.0)0.082
Seroma (Grade 2–3, late)n(%)18 (15.1)5 (4.3)0.005
Seroma (Grade 1)n(%)8 (6.7)21 (18.1)0.008
Seroma (Grade 2–3)n(%)23 (19.3)11 (9.5)0.032
Seroman(%)31 (26.1)32 (27.6)0.790
Hematoman(%)5 (4.2)5 (4.3)0.967
Surgical site infectionn(%)5 (4.3)4 (3.4)0.764
Inadequate wound healingn(%)2 (1.7)2 (1.7)0.979
  1. Discrete variables used χ2 test or Fisher exact test
  2. The incidence of Grade 2 and 3 seroma or late seroma in Grade 2 and 3 was significant higher in the conventional suture group compared with that in the quilting group (p = 0.032 and p = 0.005 respectively). The incidence of Grade 1 seroma was significantly higher in quilting group compared with that in the conventional group (p = 0.008).