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Table 2 Menstrual and pre-surgical complaints of the women with DIE vs OMA

From: Factors associated with deep infiltrating endometriosis versus ovarian endometrioma in China: a subgroup analysis from the FEELING study

Factors OMA (n = 156) DIE (n = 78) OR (95% CI) P
Time since age at menarche (years)a 18.09 ± 5.10 21.31 ± 4.52 3.92 [2.12;7.26] < 0.001
Lifelong menstrual cycles 0.799
 Always + Generally regular 151 (96.8%) 75 (96.2%) ref
 Irregular 5 (3.2%) 3 (3.8%) 1.21 [0.28;5.19]
Non-cyclic chronic pelvic pain 0.203
 No 129 (82.7%) 59 (75.6%) ref
 Yes 27 (17.3%) 19 (24.4%) 1.54 [0.79;2.99]
Menstrual/ovulatory disordersb 0.026
 No 149 (95.5%) 68 (87.2%) ref
 Yes 7 (4.5%) 10 (12.8%) 3.13 [1.14;8.57]
Dysmenorrhoea 0.410
 No 46 (29.5%) 15 (19.2%) ref
 Yes 110 (71.5%) 63 (81.8)  
Pain at time of ovulation 0.467
 No 144 (92.3%) 74 (94.9%) ref
 Yes 12 (7.7%) 4 (5.1%) 0.65 [0.20;2.08]
Deep dyspareunia < 0.001
 No 135 (87.1%) 52 (66.7%) ref
 Yes 20 (12.9%) 26 (33.3%) 3.37 [1.74;6.56]
Infertility 0.168
 No 121 (77.6%) 54 (69.2%) ref
 Yes 35 (22.4%) 24 (30.8%) 1.54 [0.83;2.83]
Gastrointestinal symptoms 0.042
 No 109 (69.9%) 44 (56.4%) ref
 Yes 47 (30.1%) 34 (43.6%) 1.79 [1.02;3.15]
Urinary symptoms 1.000
 No 140 (89.7%) 70 (89.7%) ref
 Yes 16 (10.3%) 8 (10.3%) 1.00 [0.41;2.45]
Previous surgical diagnosis 0.338
 No 1a31 (84.5%) 62 (79.5%) ref
 Yes 24 (15.5%) 16 (20.5%) 1.41 [0.70;2.84]
Previous uterine surgery 0.018
 No 126 (80.8%) 52 (66.7%) ref
 Yes 30 (19.2%) 26 (33.3%) 2.10 [1.13;3.89]
Hormonal treatment 0.058
 No 122 (78.2%) 52 (66.7%) ref
 Yes 34 (21.8%) 26 (33.3%) 1.79 [0.98;3.29]
Combined oral contraceptive pills 0.484
 No 154 (98.7%) 76 (97.4%) ref
 Yes (Ex-user + Current user) 2 (1.3%) 2 (2.6%) 2.03 [0.28;14.66]
  1. aOn the visit day, bMenstrual/ovulatory disorders (ovulatory disorders, amenorrhea, menorrhagia)