Table 2. Quantitative evaluation of cytokines.

Cytokine	Statistics	PE + HIV+ {2}	PE - HIV- {3}	PE - HIV+ {4}
		vs.	vs.	vs.
		PE + HIV- {1}	PE + HIV- {1}	PE - HIV- {3}
(1) IL-2 (pg/mL)	p-value	0.0008	0.9384	0.0104
	{group} [median]	{2} [268.7]	{3} [274.4]	{4} [257.6]
		{1} [273.2]	{1} [273.2]	{3} [274.4]
(2) TNF-α (pg/mL)	p-value	0.0001	0.2792	0.0453
	{group} [median]	{2} [172.2]	{3} [198.8]	{4} [174.8]
		{1} [185.2]	{1} [185.2]	{3} [198.8]
(3) IFN-γ (pg/mL)	p-value	0.0233	0.5534	0.3451
	{group} [median]	{2} [214.1]	{3} [217.1]	{4} [214.1]
		{1} [218.3]	{1} [218.3]	{3} [217.1]
(4) IL-6 (pg/mL)	p-value	0.0865	0.7743	0.0051
	{group} [median]	{2} [139.7]	{3} [149.8]	{4} [133.0]
		{1} [147.0]	{1} [147.0]	{3} [149.8]

Abbreviations: PE = preeclampsia, HIV = Human Immunodeficiency Virus, IL-2 = interleukin 2, TNF-α = tumour necrosis factor alpha, IFN-γ = interferon gamma, i: Wilcoxon rank-sum (Mann-Whitney) test, IQR: interquartile range, vs = versus