Table I.

Multiple correlation coefficient between inflammatory cytokine expression and cell number in endometriotic and healthy endometrial cells individually and co-cultured over time.

	Endometriosis		Healthy		Co-cultured cells
Pairs	r	P-value	r	P-value	r	P-value
No. of cells and IL-6	0.87114	0	0.92528	0
No. of cells and IL-8	0.60255	0.0001	0.53407	0.0087
IL-6 and IL-8 (all time points)	0.84211	0	0.50648	0.0137	0.6947	0
IL-1β and IL-6 (day 10)					0.5565	0.1197
IL-1β and IL-8 (day 10)					0.2158	0.5771

IL, interleukin.