All data are shown as mean ± standard deviation (SD). Comparisons between groups were analyzed using Student’s t-test or paired t-test. To investigate relationship between two quantitative continuous variables, we conducted Pearson correlation analysis. Chi-square tests were used to examine whether two categorical variables were independent in influencing the test statistic. Repeat measures analysis of variance test was performed to investigate changes of chest wall re-depression after BR. The binary logistic regression (LoR) test (backward, stepwise approach) was performed to investigate independent influencing factors for recurrence after BR. The Statistical Package for the Social Sciences version 22.0 (SPSS, IBM Corp, Armonk, NY, USA) was used to perform statistical evaluations. A P value <0.05 was considered statistically significant.
Statistical package for the social sciences version 22.0 spss
Manufactured by IBM
Sourced in United States
SPSS version 22.0 is a statistical software package designed for the analysis of data in the social sciences. It provides a range of statistical techniques and data management tools to support research and analysis.
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Lab products found in correlation
2 protocols using statistical package for the social sciences version 22.0 spss
1
Chest Wall Re-depression after Breast Reconstruction
2
Longitudinal Analysis of Intervention Effects
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The researchers performed descriptive statistics on demographic data (preintervention) and collected measurements at each of the 4 intervention intervals. Demographic data and preintervention measurements were compared using independent t tests and Pearson chi-square test for independence to determine group variance and differences between sessions of the same intervention group. Differences within and between groups over time were assessed using a 2  4 (2 intervention groups  4 intervals) (ANOVA) with repeated measures on the time factor. In the case that sphericity was violated, the Greenhouse-Geisser correction was used. Data from missing time points were filled using the last observation carried forward method. 34 Significance was set at P < .05. All data analyses were conducted using the Statistical Package for the Social Sciences (version 22.0, SPSS, IBM Corp, Armonk, NY, 2013).
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