Table 1.

Comparison of the general information between the two groups.

Group	Observation group (n = 42)	Control group (n = 42)	P
Age (years old)	55.31 ± 8.69	54.45 ± 9.46	0.685
Pathological types serous adenocarcinoma/mucinous adenocarcinoma/clear cell carcinoma/endometrioid carcinoma/papillary adenocarcinoma/transitional cell carcinoma (n)	16/11/5/4/3/2/1	14/12/6/5/3/1/1	0.875
Recurrence site abdominal cavity/pelvic cavity/abdominal pelvic cavity (n)	30/10/12	16/12/14	0.426
Clinical stage II/III (n)	13/29	16/26	0.098