Table 2.

Presentation of descriptive statistics and of unadjusted analysis results for homogeneity between width classification and categorical influencing variables

	EHS width classification						p
	W1 (< 4 cm)		W2 (≥ 4–10 cm)		W3 (> 10 cm)
	n	%	n	%	n	%
Gender
Male	4132	47.96	5245	49.86	2038	54.19	< 0.001
Female	4483	52.04	5274	50.14	1723	45.81
Procedure
Laparoscopic—IPOM	2469	28.66	3099	29.46	793	21.08	< 0.001
Open—suture	2223	25.80	377	3.58	62	1.65
Open—IPOM	1219	14.15	1283	12.20	694	18.45
Open—onlay	440	5.11	649	6.17	209	5.56
Open—sublay	2264	26.28	5111	48.59	2003	53.26
ASA score
I	1460	16.95	901	8.57	242	6.43	< 0.001
II	5047	58.58	5952	56.58	1971	52.41
III/IV	2108	24.47	3666	34.85	1548	41.16
EHS classification
Combined	495	5.75	846	8.04	537	14.28	< 0.001
Lateral	1716	19.92	1823	17.33	428	11.38
Medial	6404	74.34	7850	74.63	2796	74.34
Preoperative pain
Yes	5178	60.10	5842	55.54	2068	54.99	< 0.001
No	2741	31.82	3745	35.60	1373	36.51
Unknown	696	8.08	932	8.86	320	8.51
Drainage
Yes	2893	33.58	6748	64.15	2843	75.59	< 0.001
No	5722	66.42	3771	35.85	918	24.41
Risk factors
Total
Yes	3091	35.88	4497	42.75	1794	47.70	< 0.001
No	5524	64.12	6022	57.25	1967	52.30
COPD
Yes	755	8.76	1134	10.78	457	12.15	< 0.001
No	7860	91.24	9385	89.22	3304	87.85
Diabetes
Yes	884	10.26	1482	14.09	626	16.64	< 0.001
No	7731	89.74	9037	85.91	3135	83.36
Aortic aneurysm
Yes	67	0.78	196	1.86	107	2.84	< 0.001
No	8548	99.22	10,323	98.14	3654	97.16
Immunosuppression
Yes	109	1.27	202	1.92	95	2.53	< 0.001
No	8506	98.73	10,317	98.08	3666	97.47
Corticoid
Yes	124	1.44	179	1.70	86	2.29	0.004
No	8491	98.56	10,340	98.30	3675	97.71
Smoking
Yes	1007	11.69	1225	11.65	515	13.69	0.002
No	7608	88.31	9294	88.35	3246	86.31
Coagulopathy
Yes	137	1.59	243	2.31	95	2.53	< 0.001
No	8478	98.41	10,276	97.69	3666	97.47
ASS/plavix antiplatelet medication
Yes	841	9.76	1353	12.86	535	14.22	< 0.001
No	7774	90.24	9166	87.14	3226	85.78
Anticoagulation therapy
Yes	248	2.88	341	3.24	123	3.27	0.293
No	8367	97.12	10,178	96.76	3638	96.73