Selected article for: "chi square test and exact test"
Author: Choi, Juwhan; Oh, Jee Youn; Lee, Young Seok; Hur, Gyu Young; Lee, Sung Yong; Shim, Jae Jeong; Kang, Kyung Ho; Min, Kyung Hoon
Title: The association between blood eosinophil percent and bacterial infection in acute exacerbation of chronic obstructive pulmonary disease
  • Document date: 2019_5_6
    • ID: 5l6rsa94_9
    Snippet: Data were analyzed by SPSS 20 software (SPSS for windows, SPSS Inc., Chicago, IL, USA). Data were reported as mean ± standard deviation or number and percent of each group. We divided the two groups with respect to eosinophil count of 2%. Continuous variables were compared using the Mann-Whitney test or independent t-test, while categorical variables were compared using the chi-square test or Fisher`s exact test. Variables with P-value <0.05 on .....
    Document: Data were analyzed by SPSS 20 software (SPSS for windows, SPSS Inc., Chicago, IL, USA). Data were reported as mean ± standard deviation or number and percent of each group. We divided the two groups with respect to eosinophil count of 2%. Continuous variables were compared using the Mann-Whitney test or independent t-test, while categorical variables were compared using the chi-square test or Fisher`s exact test. Variables with P-value <0.05 on univariate analysis were tested in logistic regression analysis. When analyzing logistic regression analysis, white blood cell (WBC) and CRP were converted into binary variables based on the optimal cut-off values, and these optimal cutoff values were calculated using receiver operating characteristic. The cut-off values of WBC and CRP were 10,450.0 cells/mm 3 and 44.7 mg/L, respectively.

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