Eating disorders in premenstrual dysphoric disorder: a neuroendocrinological pathway to the pathogenesis and treatment of binge eating

Evaluation of the effectiveness of a training program for coping with PMS symptoms based on IMB model in university students

Premenstrual syndrome (PMS) is a common health problem that adversely affects young women's quality of life. This paper evaluated the effectiveness of a "Training Program for Coping with PMS Symptoms based on Information-Motivation-Behavioral Skills (IMB) model" in university nursing students. This controlled intervention study was conducted between September 2017 and February 2018. No sampling was performed. The goal was to include all students who met the inclusion criteria. The sample consisted of 95 first-year nursing students from two universities divided into two groups: intervention (n = 40) and control (n = 45) (power of 84.5%, p = .05, effect size = 0.45). The intervention group received the training, followed by individual motivational counseling first and second months after the training. The control group did not participate in the training program. The intervention group had more PMS symptoms coping behaviors (recognizing premenstrual change, performing regular exercises, relaxation techniques, pursuing a healthy diet, communicating with family and friends) than their counterparts in the control group after the training program (p < .05). The intervention group had higher Premenstrual Coping Measure scores (recognizing premenstrual changes, performing self-care, avoiding harm, communicating) after training program (p < .05). Although habits are hard to break, especially at young ages, the training helped university students adopt PMS coping behaviors.

Association of Premenstrual Dysphoric Disorder and Eating Behaviors Among Nursing Students: A Cross-Sectional Study

STUDY OBJECTIVE

Premenstrual dysphoric disorder (PMDD) is the most severe form for premenstrual distress. This study's objective was to understand the association among PMDD, premenstrual syndrome (PMS), and eating behaviors.

DESIGN

Cross-sectional design. The survey was composed of validated measures.

SETTING AND PARTICIPANTS

Female students at a nursing school.

MAIN OUTCOME MEASURES

PMDD and PMS diagnoses were made using the Premenstrual Symptoms Screening Tool (PSST). Eating behaviors were assessed using the Eating Attitudes Test (EAT-26) and the Three-Factor Eating Questionnaire-Revised 18 (TFEQ-R18).

RESULTS

Of the 504 participants, according to the PSST, 80 (15.9%) met the criteria for PMDD, 222 (44%) had moderate-to-severe PMS, and the remaining 202 (40%) participants showed mild or no premenstrual symptoms. The total EAT-26 scores were significantly higher in the PMDD group than in the other groups (P < .001). According to the cut-off value (20 points) of EAT-26, the total prevalence of disordered eating behaviors was also significantly higher in the PMDD group (45.5%) compared with the moderate-to-severe PMS group (16.5%) and the no/mild PMS group (13.6%) (P < .001). According to the TFEQ-R18 scores, significantly higher scores for emotional eating and uncontrolled eating were found in the PMDD group than in the other groups (P < .001 for each).

CONCLUSIONS

Given that PMDD is defined as a more severe form of PMS with more strict criteria, the findings in this study reflect that as the severity of premenstrual symptoms increase, disordered eating behaviors also increase. To the best of our knowledge, this is the first study to compare eating behaviors among PMDD, moderate-to-severe PMS, and no/mild PMS groups.

General and Eating Disorder Specific Flexibility: Development and Validation of the Eating Disorder Flexibility Index (EDFLIX) Questionnaire

Findings from studies investigating cognitive flexibility in eating disorders (EDs) are inconsistent, and although neuropsychological tests are commonly used to measure these skills, they may not be particularly effective in predicting everyday functioning. Also, extant studies have largely focused on flexibility in anorexia nervosa (AN), with assessments targeting general rather than specific flexibility, and cognitive, rather than behavioral flexibility. Knowledge regarding ED specific flexibility and flexibility in bulimia nervosa (BN) and binge eating disorder (BED) is still scarce. The aim of this study was to develop and validate a novel measure assessing general and ED specific flexibility in a diagnostically diverse sample, and in healthy controls (HCs). A sample of 207 adult individuals with EDs (55% AN, 29% BN, 16% BED) and 288 HCs responded to an online, 51-item, pilot questionnaire on ED specific and general flexibility. In addition, participants completed the shift subscale from the Behavior Rating Inventory of Executive Function Adult version (BRIEF-A), and the Eating Disorder Diagnostic Scale (EDDS). A principal component analysis (PCA) in the clinical sample yielded a 36-item, three-factor solution capturing general flexibility, flexibility related to food and exercise, and flexibility concerning body shape and weight. Results showed that the measure had good to excellent internal consistency, and good convergent validity. A confirmatory factor analysis (CFA) using data from HCs revealed good fit indexes, supporting the original factor solution. A receiver operating characteristics analysis (ROC) demonstrated excellent accuracy in distinguishing scores from those with and without EDs. A cutoff score of 136 yielded the most balanced sensitivity and specificity. Significant differences in general and ED specific flexibility were found between individuals with and without EDs. Overall, HCs achieved the highest flexibility scores, followed by those with BED, BN, and AN. In sum this novel measure, the Eating Disorder Flexibility Index (EDFLIX) questionnaire, was found to be reliable and valid in the assessment of cognitive and behavioral flexibility, with results offering support for the conceptual distinction between general and ED related flexibility. The study also provides strong evidence for the discriminant validity of the EDFLIX with results revealing significant differences in flexibility in people with and without EDs. In addition, significant differences in flexibility also emerged when comparing diagnostic groups, indicating the utility of the assessment instrument for classification purposes.