TABLE 3

Regional Perfusion Distribution

	Nonsmoker		Smoker
Trait	HIV−	HIV+	HIV−	HIV+	p_kw value
Qv_grad (10⁻²cm⁻¹)	6.96 (1.31)^*^†‡	5.32 (1.83)^‡	4.88 (1.79)^†	4.7 (1.66)^*	0.003
CV²_Qtotal	0.12 (0.04)	0.12 (0.05)	0.13 (0.05)	0.1 (0.06)	0.59
CV²_Qvgrad/CV²_Qtotal	0.65 (0.13)^*^†‡	0.46 (0.19)^‡	0.34 (0.17)^†	0.39 (0.16)^*	0.002
CV²_Qzgrad/CV²_Qtotal	0.04 (0.05)	0.07 (0.08)	0.11 (0.13)	0.1 (0.13)	0.23
CV²_Qr/CV²_Qtotal	0.36 (0.13) ^*^†‡	0.48 (0.15) ^‡	0.54 (0.15) ^†	0.51 (0.13) ^*	0.013

Variables are represented as mean (SD).
↵* ^†‡Indicate P value < 0.05 in with Wilcoxon rank-sum testing.
p_kw = P value of the Kruskal–Wallis test.