Monitoring of Active Human Herpes Virus 6 Infection in Iranian Patients with Different Subtypes of Multiple Sclerosis

Table 3

Correlation of HHV-6-DNA detection in separate specimens (HHV-6⁺) with HHV-6 seroprevalence (IgG and IgM) in MS patients.

Correlation between variables among patients
	IgG	IgM	Serum	PBMCs	CSF	Saliva
IgG
Pearson correlation	1	0.429*	0.283	0.233	0.092	−0.075
Sig. (2-tailed)		0.041	0.066	0.104	0.787	0.874
IgM
Pearson correlation	0.429*	1	0.407*	−0.193	0.111	−0.116
Sig. (2-tailed)	0.041		0.035	0.355	0.745	0.805
Serum
Pearson correlation	0.283	0.407*	1	0.363*	0.607*	0.218
Sig. (2-tailed)	0.066	0.035		0.014	0.048	0.604
PBMCs
Pearson correlation	0.233	−0.193	0.363*	1	0.001	0.291
Sig. (2-tailed)	0.104	0.355	0.014		0.998	0.447
CSF
Pearson correlation	0.092	0.111	0.607*	0.001	1	·^a
Sig. (2-tailed)	0.787	0.745	0.048	0.998		·^a
Saliva
Pearson correlation	−0.075	−0.116	0.218	0.291	·^a	1
Sig. (2-tailed)	0.874	0.805	0.604	0.447	·^a

*Correlation is significant at the 0.05 level (2-tailed).
^aCannot be computed because at least one of the variables is constant.