Data was statistically analyzed using the software STATISTICA for Windows rel. 5.1 (Statsoft Inc.) and SPSS for Windows rel. 14 (SPSS Inc.). Continuous variables were compared using the nonparametric Mann-Whitney test. Discontinuous variables were analyzed by the Fisher exact test. Correlations were calculated using the Spearman test. The Kaplan-Meier method and the log-rank test were used to compare event-free survival between the groups of patients with different PON1 activities and PON1 genotypes. The Cox proportional hazard model was used to assess multivariate hazard ratio (HR) adjusted for potential risk factors. P values less than 0.05 were considered significant. Data are presented as means ±SDs.
Spss for windows rel 14
Manufactured by IBM
SPSS for Windows rel. 14 is a software application designed for statistical analysis. It provides a comprehensive set of tools for data management, data analysis, and reporting. The software is intended for use in academic, research, and business settings.
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Lab products found in correlation
2 protocols using spss for windows rel 14
1
Statistical Analysis of PON1 Activity and Genotypes
2
Genetic Polymorphism Analysis in Patients
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SPSS for Windows rel. 14 (SPSS Inc. IBM, Chicago, IL) was used to statistically analyze the data. Nonparametric Mann-Whitney test was used to compare continuous variables, whereas Fisher exact test was used to analyze discontinuous variables. Spearman test was used to calculate the correlations, while the event-free surviv al between the two groups of patients was compared using a log-rank test and the Kaplan-Meier method. The multivariate HR (hazard ratio) was assessed using competing risk models. Since the number of patient samples harboring the TT genotype was low, TC and TT samples were combined into one group (i.e., group of T genotypes) in the analysis. All results were shown as mean ± standard deviation (SD). A P value of < 0.05 was considered statistically significant.
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