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Table 4 Baseline characteristics of the 60 included patients compared to the 70 patients who had to be excluded due to non-study related reasons.

From: To whom do the results of the multicenter, randomized, controlled INSECT trial (ISRCTN 24023541) apply? - assessment of external validity

Parameter Patients in INSECT trial
(n = 60)
Patients not consenting
(n = 44)
Patients in POVATI trial (n = 26) p-value
Age     
Mean (SD) 57.70 (17.08) 55.93 (17.54) 56.69 (12.27) 0.6088*
Gender     
female 21 (35.00%) 17 (38.64%) 9 (34.62%)  
male 39 (65.00%) 27 (61.36%) 17 (65.38%)  
     0.9158#
Body Mass Index     
Mean (SD) 25.62 (3.41) 24.61 (3.60) 23.77 (2.51) 0.0786*
ASA score     
I 4 (6.67%) 2 (4.55%) 2 (7.69%)  
II 34 (56.67%) 27 (61.36%) 15 (57.69%)  
III 21 (35.00%) 15 (34.09%) 9 (34.62%)  
IV 1 (1.67%) 0 (0.00%) 0 (0.00%)  
     0.9931#
Duration of hospitalization     
Mean (SD) 14.61 (11.76) 14.34 (11.64) 13.00(6.90) 0.9570*
Malignant disease     
none 35 (58.33%) 19 (43.18%) 10 (38.46%)  
solid tumors 24 (40.00%) 25 (56.82%) 16 (61.54%)  
missing/n.a. 1 (1.67%) 0 (0.00%) 0 (0.00%)  
     0.1634#
Incision technique     
midline 60 (100.00%) 40 (90.91%) 18 (69.23%)  
transverse 0 (0.00%) 3 (6.82%) 8 (30.77%)  
laparoscopic 0 (0.00%) 1 (2.27%) 0 (0.00%)  
     0.0001#
Closure technique     
continuous suture 40 (66.67%) 39 (88.64%) 26 (100.00%)  
interrupted suture 20 (33.33%) 4 (9.09%) 0 (0.00%)  
missing/n.a. 0 (0.00%) 1 (2.27%) 0 (0.00%)  
     0.0006#
  1. * Kruskal-Wallis test, # Fisher's exact test