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Table 3 Difference in latency period based on patients’ baseline characteristics, symptoms, and CSE sitesa

From: Cesarean scar endometriosis: presentation of 198 cases and literature review

Characteristic n (%) Latency period (months) P-value
Median (quartiles)
Age at CS (years)    0.941
  ≥ 35 6 (3.0) 30.0 (10.5–48.0)  
 25–34 143 (72.2) 24.0 (12.0–40.0)  
  ≤ 24 49 (24.8) 24.0 (12.0–48.0)  
Parity    0.273
 Nulliparous 178 (89.2) 24.0 (12.0–36.0)  
 Multiparous 20 (10.1) 21.0 (6.0–48.0)  
One previous CS 0.452
 Yes 21 (10.6) 24.0 (6.0–48.0)  
 No 177 (89.4) 24.0 (12.0–36.0)  
Dysmenorrhea    0.473
 Yes 64 (32.3) 19.0 (12.0–36.0)  
 No 134 (67.7) 24.0 (12.0–36.0)  
Incision type    0.006
 Pfannenstiel 160 (80.8) 24.0 (12.0–36.0)  
 Vertical midline 38 (19.2) 33.0 (24.0–60.0)  
No. of endometriomas    0.078
 Single 187 (94.4) 24.0 (12.0–48.0)  
 Multiple 11 (5.6) 16.0 (12.0–24.0)  
Location of the endometriomas I    0.253
 Under the scar 111 (56.1) 24.0 (12.0–36.0)  
 Away from the scar 87 (43.9) 24.0 (12.0–48.0)  
Location of the endometriomas II    0.153
 Corner of the scar 167 (84.3) 24.0 (12.0–48.0)  
 Middle of the scar 31 (15.7) 30.0 (24.0–38.0)  
Upper bound of the endometriomas    0.073
 Adipose layer 181 (91.4) 24.0 (12.0–39.0)  
 Fascia layer 14 (7.1) 24.0 (18.0–49.5)  
 Muscular layer 3 (1.5) 48.0 (48.0–56.0)  
Lower bound of the endometriomas    0.011
 Adipose layer 10 (5.1) 27.0 (18.0–39.0)  
 Fascia layer 130 (65.7) 24.0 (12.0–36.0)  
 Muscular layer 41 (20.7) 24.0 (16.0–48.0)  
 Peritoneum 12 (6.1) 48.0 (27.0–60.0)  
 Abdominal cavity 3 (1.5) 30.0 (9.0–30.0)  
 Bladder 2 (1.0) 40.0 (24.0–40.0)  
  1. aMann–Whitney U test for comparing two sets; Kruskal–Wallis H test for comparing multiple sets