TABLE 7.

Endometriosis characteristics: rASRM stage, adhesions, different locations of endometriotic lesions, and number of endometriosis‐related surgeries in women with and without endometriosis‐related chronic pain

	Women with endometriosis		X 2	p‐value b
	With chronic pain n = 265	Without chronic pain n = 245
rASRM stage
	n = 249	n = 224
I	45 (18.1%)	32 (14.3%)	1.084	0.298
II	47 (18.9%)	46 (20.5%)
III	58 (23.3%)	84 (37.5%)
IV	99 (39.8%)	62 (27.7%)
Intra‐abdominal adhesions
	n = 249	n = 224
Yes	202 (81.1%)	161 (71.9%)	5.146	0.023
Endometrioma
	n = 248	n = 224
Yes	114 (46%)	126 (56.2%)	4.576	0.032
Involvement of the uterosacral ligaments
	n = 248	n = 224
Yes	151 (60.9%)	137 (61.2%)	0	1.000
Involvement of pelvic wall
	n = 248	n = 224
Yes	206 (83.1%)	177 (79%)	1.009	0.315
Involvement of vaginal fornix
	n = 248	n = 224
Yes	42 (16.9%)	21 (9.4%)	5.181	0.023
Involvement of Douglas/septum rectovaginal
	n = 249	n = 224
Yes	187 (75.1%)	156 (69.6%)	1.499	0.221
Douglas obliteration (frozen pelvis)
	n = 248	n = 224
Yes	79 (31.9%)	51 (22.8%)	4.425	0.035
Number of different locations
	n = 265	n = 245
1	34 (12.8%)	25 (10.2%)	1.539	0.210
2	36 (13.6%)	44 (18.0%)
3	41 (15.5%)	57 (23.3%)
4	62 (23.4%)	47 (19.2%)
5	79 (29.8%)	59 (24.1%)
6	13 (4.9%)	13 (5.3%)
Mean ± SD	3.6 ± 1.5	3.4 ± 1.4		0.291
Number of surgical interventions because of endometriosis
	n = 250	n = 224
1	106 (42.4%)	145 (64.7%)	25.718	<0.001
2	91 (36.4%)	55 (24.6%)
3	22 (8.8%)	19 (8.5%)
4	12 (4.8%)	1 (0.4%)
≥5	19 (7.6%)	4 (1.8%)
Mean ± SD	2.1 ± 1.5	1.5 ± 0.8		<0.001

^a Pearson Chi‐squared test for categorial variables, Kruskal–Wallis test for ordinal variables, independent t‐test for difference between the means.