Values of serum tumor markers and tumor characteristics
| Variables | Endometriosis-related ovarian neoplasms | Ovarian endometrioma | P-value* |
| Median (range) | Median (range) | ||
| CA125 level, U/mL | 43 (7–2065) | 47.5 (6–1951) | 0.358 |
| (n=21) | (n=244) | ||
| CA19-9 level, U/mL | 42 (5–2222) | 19 (5–664) | 0.013 |
| (n=19) | (n=225) | ||
| CEA level, ng/mL | 1.3 (0.6–5.2) | 0.840 (0.5–8.4) | 0.007 |
| (n=13) | (n=166) | ||
| SLX level, U/mL | 41 (24–530) | 33 (23–75) | 0.050 |
| (n=17) | (n=34) | ||
| LDH level, U/mL | 189 (134–331) | 166 (110–299) | <0.001 |
| (n=21) | (n=262) | ||
| Age | 48 (26–81) | 39 (22–68) | <0.001 |
| (n=21) | (n=262) | ||
| Maximum tumor diameter, mm | 79 (27–159) | 55 (20–150) | 0.001 |
| (n=21) | (n=262) | ||
| With mural nodule, n (%) | 18 (85.7) | 12 (4.5) | <0.001 |
| (n=21) | (n=262) |
Values were presented as median (range) unless stated otherwise.
*Mann–Whitney U test was used to compare quantitive variables. Fisher's exact test was used to compare qualitative variables.