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Table 3 χ2 test results of Williams classification standard of Parks-Dixon group

From: Anal function and quality of life analysis after laparoscopic modified Parks for ultra-low rectal cancer patients

GroupsOne months after surgeryThree months after surgerySix months after surgeryNine months after surgeryTwelve months after surgery
Parks-Dixon groupPearson χ2 = 19.35Pearson χ2 = 7.13Pearson χ2 = 1.62Pearson χ2 = 0.80Pearson χ2 = 0.00
P = 0.000P = 0.008P = 0.203P = 0.371P = 1.000