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Table 3 Demographic and surgery-related data

From: When is mesh fixation in TAPP-repair of primary inguinal hernia repair necessary? The register-based analysis of 11,230 cases

  Mesh fixation No mesh fixation p
Age (years) Mean ± STD 57.4 ± 14.8 54.4 ± 15.7 <0.001
BMI (kg/m²) Mean ± STD 25.9 ± 3.4 25.9 ± 3.3 0.573
Mesh size (cm²) Mean ± STD 151.1 ± 19.3 145.8 ± 15.6 <0.001
  n (7422) % n (3806) % p
ASA
 I 2601 35.04 1282 33.68 0.027
 II 3994 53.81 2037 53.52
 III/IV 827 11.14 487 12.80
Defect size (EHS)
 I (<1.5 cm) 852 11.48 649 17.05 <0.001
 II (1.5–3 cm) 4652 62.68 2743 72.07
 III (>3 cm) 1918 25.84 414 10.88
Localization of defect (EHS)
 Medial (M) 2285 30.79 948 24.91 <0.001
 Lateral (L) 4477 60.32 2298 60.38
 Combined (C) 660 8.89 560 14.71
Risk factors
Overall
 Yes 1749 23.57 980 25.75 0.011
 No 5673 76.43 2826 74.25
COPD
 Yes 321 4.32 196 5.15 0.051
 No 7101 95.68 3610 94.85
Diabetes
 Yes 318 4.28 164 4.31 0.961
 No 7104 95.72 3642 95.69
Aortic aneurysm
 Yes 22 0.30 9 0.24 0.705
 No 7400 99.70 3797 99.76
Immunosuppression
 Yes 34 0.46 14 0.37 0.544
 No 7388 99.54 3792 99.63
Corticoids
 Yes 50 0.67 23 0.60 0.711
 No 7372 99.33 3783 99.40
Smoking
 Yes 643 8.66 470 12.35 <.001
 No 6779 91.34 3336 87.65
Coagulopathy
 Yes 74 1.00 37 0.97 1.000
 No 7348 99.00 3769 99.03
Antiplatelet medication
 Yes 525 7.07 206 5.41 <0.001
 No 6897 92.93 3600 94.59
Cumarin medication
 Yes 133 1.79 52 1.37 0.100
 No 7289 98.21 3754 98.63
  1. Demographic parameters (Table 3) are demonstrated in relation to fixation/non-fixation and include the age of the patients (years), BMI (kg/m2), size of the mesh implant (cm2), ASA score (I–IV), size of the hernia defect (EHS I–III), localization of the hernia defect (medial-M/lateral-L/combined-C; EHS classification), and hernia-specific risk factors