Table 3.

Correlation between cytokines in peripheral and menstrual effluent

Cytokine		Nominal correlation		Outlier analysis
		r 2	p‐value	r 2	p‐value
Transforming growth factor beta	TGF‐β	0.87	0.002	0.82	0.013
Chemokine (C‐C motif) ligand 7	CCL7	0.63	0.033	0.66	0.0497
Interleukin 5	IL‐5	0.63	0.033	0.60	0.07
Colony‐stimulating factor 2	CSF2	0.87	0.002	0.20	0.37
	Leptin	0.86	0.003	0.00	0.99
Transforming growth factor alpha	TGF‐α	0.81	0.005	0.21	0.36
Chemokine (C‐X‐C motif) ligand 1	CXCL1	0.78	0.009	0.47	0.53
C‐X‐C motif chemokine ligand 10	CXCL10	0.73	0.014	0.09	0.57
Interferon beta	IFN‐β	0.72	0.015	0.05	0.68

Note: Name, linear regression r ² values, and slope p‐values for cytokine expression levels measured in peripheral versus menstrual effluent. Outlier analysis shows correlation after removal of the single most significant datapoint. Bold values are statitistically significantly different.

Abbreviations: IFN, interferons; IL, interleukin; TGF, transforming growth factor.