Table 1. Clinical parameters and CT image findings of the patients at initial presentation.
| Surgery | Conservative management | P value | |
| (n = 15) | (n = 63) | ||
| Clinical parameters | |||
| Age (year) | 25.7±3.9 | 26.2±6.4 | 0.760 |
| Body mass index (kg/m2) | 19.5±1.6 | 20.0±1.9 | 0.359 |
| Married, n (%) | 2 (13.3%) | 14 (22.2%) | 0.723 |
| Nulliparity, n (%) | 15 (100%) | 53 (84.1%) | 0.195 |
| Menstrual cycle, n (%) | 0.855 | ||
| Follicular phase | 0 (0%) | 1 (1.6%) | |
| Luteal phase | 11 (73.3%) | 42 (68.9%) | |
| Undetermined due to irregular cycle | 4 (26.7%) | 18 (29.5%) | |
| Antecedent to pain, n (%) | 1.000 | ||
| Intercourse | 7 (46.7%) | 29 (46.0%) | |
| Others or unknown | 8 (53.3%) | 34 (54.0%) | |
| Initial vital signs | |||
| Systolic blood pressure (mmHg) | 110.7±10.7 | 118.9±15.3 | 0.051 |
| Diastolic blood pressure (mmHg) | 66.9±7.9 | 74.4±11.0 | 0.007 |
| Pulse rate | 87.1±13.2 | 87.4±15.5 | 0.694 |
| Initial hemoglobin level (g/dL) | 12.3±1.4 | 12.7±1.0 | 0.272 |
| CT image findings | |||
| Site of ovarian cyst, n (%) | 0.149 | ||
| Right ovary | 12 (80.0%) | 37 (58.7%) | |
| Left ovary or both ovaries | 3 (20.0%) | 26 (41.3%) | |
| Maximum diameter of ovarian cyst (cm) | 4.1±1.2 | 3.9±1.2 | 0.368 |
| PCDS fluid collection, depth (cm) | 3.3±1.6 | 3.0±1.5 | 0.652 |
| ACDS fluid collection, depth (cm) | 2.9±2.2 | 1.5±1.4 | 0.011 |
| Total pelvic fluid collection, depth (cm) | 6.2±2.0 | 4.4±2.0 | 0.005 |
PCDS, posterior cul-de-sac; ACDS, anterior cul-de-sac.