Changes in PSS scores are correlated with dietary adherence
REGRESSION, REGRESSION
Previous nutrition intervention studies have demonstrated that adherence to the diet intervention vary across human cohorts. Similarly, adherence to the dietary intervention in this study population differed between participants. Adherence based on dietary adherence scores varied from 41% (score 25 out of 60) to 100% adherence (score 60 out of 60), with the average being at 65% adherence (score 40 out of 60). Most challenging to adhere to was the consumption of fermented foods which fell below (average 1.7 servings per day) the recommended intake of 2–3 servings per day in the psychobiotic diet intervention group.Thus, in order to investigate whether higher adherence to the dietary intervention resulted in more pronounced changes in the outcomes of interest in this cohort, dietary adherence scores were calculated and regression analysis with outcome measures was performed. Due to CONT group not receiving the dietary intervention and thus the score not being reflective of diet adherence, this exploratory analysis was only conducted on the DIET group.Regression analysis (when controlling for age, gender, and BMI) revealed that higher adherence to the study diet resulted in a stronger decrease of PSS score (adj. 