Spss 25.0 j for windows

The Mann–Whitney U test, chi-squared test, or Fisher’s exact test was used to assess significant differences in variables between the two groups. The Wilcoxon signed-rank test or McNemar’s test was used to assess significant differences in variables between the baseline and the follow-up. The associations between an increase in dental caries and all the independent variables that are risk factors for dental caries were analyzed by means of logistic regression. Subgroup analyses by sex were also performed. All the missing data were excluded in this study. All the analyses were performed using SPSS 25.0 J for Windows (IBM Japan, Tokyo, Japan). Values of p < 0.05 were considered significant.

Changes in each parameter over 14 days were calculated by subtracting the baseline value from the follow-up value. Spearman’s rank correlation coefficient was used to determine the significance of correlations among variables. All analyses were performed using SPSS 25.0J for Windows (IBM Japan, Tokyo, Japan). Values of p < 0.05 were considered significant.