Prevalence and Etiology of Eating Disorders in Polycystic Ovary Syndrome: A Scoping Review

Polycystic ovary syndrome (PCOS) is the most common endocrine-metabolic disorder affecting females across the lifespan. Eating disorders (EDs) are psychiatric conditions that may impact the development of PCOS and comorbidities including obesity, metabolic syndrome, and type 2 diabetes. The aim of this scoping review was to determine the prevalence of EDs and disordered eating, and to review the etiology of EDs in PCOS. The review was conducted using search terms addressing PCOS, EDs, and disordered eating in databases, including PubMed, Scopus, PsycINFO, and CINAHL. Structured interviews, self-administered questionnaires, chart review, or self-reported diagnosis were used to identify EDs in 38 studies included in the review. The prevalence of any ED in those with PCOS ranged from 0% to 62%. Those with PCOS were 3-6-fold more likely to have an ED and higher odds ratios (ORs) of an elevated ED score compared with controls. In those with PCOS, 30% had a higher OR of bulimia nervosa and binge ED was 3-fold higher compared with controls. Studies were limited on anorexia nervosa and other specified feeding or ED (such as night eating syndrome) and these were not reported to be higher in PCOS. To our knowledge, no studies reported on avoidant/restrictive food intake disorder, rumination disorder, or pica in PCOS. Studies showed strong associations between overweight, body dissatisfaction, and disordered eating in PCOS. The etiologic development of EDs in PCOS remains unclear; however, psychological, metabolic, hypothalamic, and genetic factors are implicated. The prevalence of any ED in PCOS varied because of the use of different diagnostic and screening tools. Screening of all individuals with PCOS for EDs is recommended and high-quality studies on the prevalence, pathogenesis of specific EDs, relationship to comorbidities, and effective interventions to treat ED in those with PCOS are needed.

Lifestyle Behaviour Changes and Associated Risk Factors During the COVID-19 Pandemic: results of the Canadian COVIDiet Online Cohort Study

BACKGROUND

The COVID-19 pandemic and related lockdowns have impacted lifestyle behaviours including eating habits and physical activity; yet few studies identified emerging patterns of such changes and associated risk factors.

OBJECTIVE

To identify patterns of weight and lifestyle behaviour change, and potential risk factors, resulting from the pandemic in Canadian adults.

METHODS

Analyses were conducted on 1,609 adults (18-89 y; 90.1% women; 81.8% White) of the Canadian COVIDiet study baseline data (May-Dec 2020). Self-reported current and pre-pandemic weight, physical activity, smoking status, perceived eating habits, alcohol intake and sleep quality were collected by online questionnaires. Based on these 6 indicator variables, latent class analysis (LCA) was used to identify lifestyle behaviour change patterns. Associations with potential risk factors including age, gender, ethnicity, education, income, chronic diseases, body image perception, and changes in stress level, living situation and work arrangement were examined with logistic regressions.

RESULTS

Participants' mean BMI was 26.1 ± 6.3 kg/m2; 60.9% had >= bachelor's degree. Since the pandemic, 35% had decreased income and 49% changed work arrangement. Most participants reported unchanged weight, sleep quality, physical activity level, smoking and alcohol consumption, yet 44% reported a perceived decrease in eating habits quality. From LCA, 2 classes of lifestyle behaviour change emerged; "healthy" and "less healthy" (probability: 0.605 and 0.395; BIC=15574.3, entropy=4.8). "Healthy" class participants more frequently reported unchanged weight, sleep quality, smoking and alcohol intake, unchanged/improved eating habits and increased physical activity. The "less healthy" class reported significant weight gain, deteriorated eating habits and sleep quality, unchanged/increased alcohol intake and smoking, and decreased physical activity. Among risk factors, body image dissatisfaction OR=8.8, 95%CI (5.3-14.7), depression OR=1.8, 95%CI (1.3, 2.5), increased stress level OR=3.4, 95%CI (2.0, 5.8) and of gender minority identity OR=5.5, 95% CI (1.3-22.3) were associated with adopting "less healthy" behaviours in adjusted models.

CONCLUSIONS

The COVID-19 pandemic appeared to have influenced lifestyle behaviours unfavorably in some, but favorably in others. Body image perception, change in stress level and gender identity were factors associated with behaviour change patterns; whether these will sustain overtime remains to be studied. Findings provide insights to develop strategies in supporting adults with poorer mental well-being in the post-pandemic context and promoting healthful behaviours during future disease outbreaks.

CLINICALTRIAL

This study was registered on ClinicalTrials.gov (NCT04407533).

Sports Nutrition Knowledge in Athletes with a Spinal Cord Injury and Coaches of Para Sports

Sports nutrition for athletes with a spinal cord injury (SCI) is complex, making it challenging for athletes to stay informed. The aim of this study was to assess sports nutrition knowledge in athletes with a SCI and coaches of para sports. The secondary aim was to report sources of sports nutrition information. Eighty athletes and twenty-six coaches across various adapted sports were recruited. The Nutrition for Sport Knowledge Questionnaire was used to assess nutrition knowledge for both groups. Athletes achieved their highest score among the alcohol (65 ± 19%) category and the lowest in sports nutrition (43 ± 17%). Coaches demonstrated the most knowledge in the alcohol (73 ± 17%) category and lowest knowledge in the supplementation (45 ± 19%) category. Both groups relied on the internet, dietitians, and coaches for sports nutrition information. Future studies should explore the effects of nutrition education on nutrition knowledge and dietary intakes among these populations.

Adopting a Less Healthy Lifestyle Pattern During the COVID-19 Pandemic Is Modulated by Body Image Dissatisfaction and Increased Stress in Adults of the Canadian COVIDiet Study

Objectives

The COVID-19 pandemic and related lockdowns may impact lifestyle behaviors including eating habits and physical activity; few studies identified emerging patterns of such changes and associated risk factors. Objectives were to identify patterns of weight and lifestyle behavior change resulting from the pandemic in Canadian adults; and potential risk factors.

Methods

Analyses were conducted on 1,609 adults (18–89 y; 90.1% women; 81.8% White) of the Canadian COVIDiet study baseline data (May-Dec 2020). Self-reported current and pre-pandemic weight, physical activity, smoking status, perceived eating habits, alcohol intake and sleep quality were collected by online questionnaires. Based on these 6 indicator variables, categorized into 3–5 levels of change, latent class analysis (LCA) was used to identify lifestyle behavior change patterns. Associations with potential risk factors including age, gender, ethnicity, education, income, chronic diseases, body image perception, and changes in stress level, living situation and work arrangement were examined with logistic regressions.

Results

Participants’ mean BMI was 26.8 ± 6.7; 61% had > = bachelor's degree. Since the pandemic, 21% could not always afford balanced meals, 35% had decreased income and 49% changed work arrangement. From LCA, 2 classes of lifestyle behavior change emerged; “healthy” and “less healthy” (probability: 0.58 and 0.42; BIC = 19,354.8, entropy = 5.5). “Healthy” class participants more frequently reported unchanged weight, sleep quality, smoking and alcohol intake, unchanged/improved eating habits and increased physical activity. The “less healthy” class reported significant weight gain, deteriorated eating habits and sleep quality, unchanged/increased alcohol intake and smoking, and decreased physical activity. Among risk factors, body image dissatisfaction [OR = 12.2, 95%CI (9.4–15.8)] and increased stress level [(OR = 5.0, 95%CI (3.8, 6.4)] were associated with adopting “less healthy” behaviors in adjusted models.

Conclusions

The COVID-19 pandemic appeared to have influenced lifestyle behaviors unfavorably in some but favorably in others. Body image perception and change in stress level may have modulated these changes; whether these will sustain overtime remains to be studied.

Funding Sources

McGill University.