Table 4. Correlation results between PAI and eight risk factors at baseline and follow-up.

PAI vs.
Risk factor	baseline		follow-up
	r	p	r	p
	WT	-0.5262	1.48E-13	0.9929	6.35E-36
PWS	0.0185	0.7338(NS)	-0.0683	0.0890(NS)
PWSn	0.0377	0.4064(NS)	-0.0894	0.0266
WSS	-0.1128	0.0673(NS)	0.3179	1.76E-06
Lipid percent	0.0043	0.9031(NS)	0.0903	0.0826(NS)
Min cap thickness	0.0560	0.0320	0.0152	0.6253(NS)
PA	-0.8330	6.89E-26	0.9890	4.58E-49
PB	-0.4678	4.87E-13	0.9610	1.20E-28