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Table 1 The patient characteristics were similar between the two groups, except for the familial history of cancer

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
Age (years)Mean (SD)50.8 (11.7)52.7 (9.9)0.205
BMI (kg/m2)Mean (SD)22.9 (2.8)22.7 (2.9)0.481
Hypertensionn(%)11 (9.2)20 (17.2)0.070
Diabetesn(%)3 (2.5)4 (3.4)0.676
Smokingn(%)1 (0.8)3 (2.6)0.301
Menopausen(%)60 (50.4)69 (59.5)0.163
Familial history of cancern(%)10 (8.4)24 (20.7)0.007
Neoadjuvant chemotherapyn(%)24 (20.2)23 (19.8)0.948
Surgery
 ME+SLNn(%)19 (16.0)18 (15.5)0.925
 ME+ALNDn(%)100 (84.0)98 (84.5) 
TNM stage
 In(%)27 (22.7)37 (31.9)0.235
 IIn(%)81 (68.1)67 (57.8) 
 IIIn(%)11 (9.2)12 (10.3) 
  1. BMI Body mass index (calculated as weight in kilograms divided by height in meters squared), ME Mastectomy, SLN Sentinel lymph node biopsy, ALND Axillary lymph node dissection, SD Standard deviation; Discrete variables used χ2 test or Fisher exact test; continuous variables t test or Wilcoxon rank-sum test