4.3.3. Univariate Methods
Statistical analyses were done in SPSS version 28 (SPSS Inc., Chicago, IL, USA). Wilcoxon signed rank test was used to test pre and post values for each dietary period as well as post intervention vs. post control values. If any change for an oxylipin was identified, treatment effect of the dietary intervention was evaluated by a mixed-effect analysis of covariance (ANCOVA) model with treatment (intervention or control) and sequence as fixed effects and subject nested in sequence as a random effect. Pre-dietary period values for the fatty acid were included as a covariate.Spearman’s correlation analysis was performed to evaluate associations between oxylipins, free fatty acids, and total fatty acids in baseline samples (