Table 6.

Serotonin preoperative levels in the study group (with ovarian cancer—III–IV stage according to FIGO) and the control group (with benign neoplastic lesions and simple ovarian cysts).

	FIGO III,IV (n = 68)		Control Group (n = 61)				95% CI
	M	SD	M	SD	vol	p	LL	UL	d Cohen
Serotonin levels	136.22	11.96	145.15	22.66	−2.31	0.048	−13.99	−1.03	0.48

M—median; SD—standard deviation; p—significance level; 95% CI—confidence interval, LL—lower limit; UL—upper limit; d Cohen—the size of the effect.