Reduction of Scarring With Electrical Stimulation
Trends were documented between demographic characteristics using descriptive statistics. One scar per subject was selected to be included in the statistical analysis. Each patient's most problematic scar, with the worst symptoms, was chosen to be analyzed. The changes from day 0 to each time point were analyzed separately using nonparametric summary statistics and pairwise Wilcoxon signed-rank tests to assess differences in pain, pruritus, scar score, blood flow, melanin, hemoglobin, and collagen levels. All analyses were performed using the statistical package SPSS version 15 (SPSS Inc, Chicago, IL) and a 1% significance level was used for the P-values to adjust for multiple comparisons. It was only feasible for the same person to conduct all the treatments and assessments, and this possibly could lead to bias. To minimize bias, independent statisticians carried out all of the statistical analysis.
Statistical Analysis
Trends were documented between demographic characteristics using descriptive statistics. One scar per subject was selected to be included in the statistical analysis. Each patient's most problematic scar, with the worst symptoms, was chosen to be analyzed. The changes from day 0 to each time point were analyzed separately using nonparametric summary statistics and pairwise Wilcoxon signed-rank tests to assess differences in pain, pruritus, scar score, blood flow, melanin, hemoglobin, and collagen levels. All analyses were performed using the statistical package SPSS version 15 (SPSS Inc, Chicago, IL) and a 1% significance level was used for the P-values to adjust for multiple comparisons. It was only feasible for the same person to conduct all the treatments and assessments, and this possibly could lead to bias. To minimize bias, independent statisticians carried out all of the statistical analysis.
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