Selected article for: "ANOVA variance and statistical test"
Author: Park, Jinsung; Shin, Dong Wook; Kim, Tae-Hwan; Jung, Seung Il; Nam, Jong Kil; Park, Seung Chol; Hong, Sungwoo; Jung, Jae Hung; Kim, Hongwook; Kim, Won Tae
Title: Development and Validation of the Korean Version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire for Patients with Non-muscle Invasive Bladder Cancer: EORTC QLQ-NMIBC24
  • Document date: 2017_3_10
    • ID: 4pbwjlm3_16
    Snippet: The validity of the QLQ-NMIBC24 was examined with three approaches. First, known-group comparisons were used to determine the ability of the questionnaire to discriminate between subgroups of patients differing in known clinical status. Known groups used for these comparisons were KPS scores (< 90 vs. 90 vs. 100) and sex (male vs. female), and analysis of co-variance (ANOVA) and Student's t test was used to determine statistical significance, res.....
    Document: The validity of the QLQ-NMIBC24 was examined with three approaches. First, known-group comparisons were used to determine the ability of the questionnaire to discriminate between subgroups of patients differing in known clinical status. Known groups used for these comparisons were KPS scores (< 90 vs. 90 vs. 100) and sex (male vs. female), and analysis of co-variance (ANOVA) and Student's t test was used to determine statistical significance, respectively. Second, divergent validity of the QLQ-NMIBC24 was assessed by evaluating the correlations between this cancer-specific module and the core questionnaire, the QLQ-C30. Third, the responsiveness to change over time was evaluated using the three sets of QLQ-NMIBC24 questionnaires (baseline, post-TURBT 3 and 6 months). Paired t tests for matched sample were used to determine the significance of change. All statistical analyses were performed using STATA ver. 14.0 (STATA Corp., Houston, TX) and p < 0.05 was considered statistically significant.

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