Table 2:

Mann-Whitney analysis for symptomatic-versus-asymptomatic patients

Cohort of 100 Patients66 Patients with CPE
PFDCPEPFDCPE
Average rank of first group38,97140,724622,526325,6711
Average rank of second group76,161372,258148,392944,125
Mann-Whitney U274395115234.5
Test statistic Z (corrected for ties)5936512254183865
Two-tailed probabilityP < .001P < .001P < .001P = .001