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. 2018 Nov 21;154(2):109–115. doi: 10.1001/jamasurg.2018.4221

Table 1. Baseline Patient Characteristicsa.

Characteristic Control Group (n = 81) Mesh Group (n = 69)
Age, median (IQR), y 65 (56.5-70) 67 (58-72)
BMI, mean (SD) 26.7 (4.8) 27.6 (4.6)
ASA classification
1-2 19 (23.5) 18 (26.1)
3 55 (67.9) 47 (68.1)
4 7 (8.6) 4 (5.8)
Immunosuppressants or corticosteroid therapy 3 (3.7) 4 (5.8)
Incisional hernia risk factors
BMI>25 50 (61.7) 51 (73.9)
Diagnosis of neoplastic disease 67 (82.7) 54 (78.3)
Male 56 (69.1) 46 (66.7)
Previous laparotomy 60 (74.1) 51 (73.9)
Type of surgery
Upper GI tract 12 (14.8) 14 (20.3)
Lower GI tract 19 (23.5) 17 (24.6)
Hepatobiliary 18 (22.2) 20 (29.0)
Pancreatic 30 (37.0) 15 (21.7)
Other 2 (2.5) 3 (4.3)
Type of incision
Midline laparotomy 30 (37.0) 31 (44.9)
Transverse laparotomy 51 (63.0) 38 (55.1)
Operation duration, mean (SD), min 293 (109) 275 (102)
Mesh implantation duration, mean (SD), min NA 25 (8)

Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); GI, gastrointestinal; IQR, interquartile range; NA, not applicable.

a

Data are presented as number (percentage) of patients unless otherwise specified.