highly significantp < 0.001
The odds ratio of accompanying PPK to ESCC was calculated as 6.2 (95%CI = 2.9 – 13.3), and the difference between the proportions of PPK in the case and control groups was highly significant (p < 0.001).
The odds ratio of accompanying PPK to ESCC was calculated as 6.2 (95%CI = 2.9 – 13.3), and the difference between the proportions of PPK in the case and control groups was highly significant (p < 0.001).