Sleep as a mediator of the relationship between social class and health in higher education students.

A substantial body of research indicates that higher education students from lower social class backgrounds tend to have poorer health than those from higher social class backgrounds. To investigate sleep as a potential mediator of this relationship, online survey responses of students from five large Australian universities, one Irish university and one large Australian technical college were analysed in three studies (Study 1 N = 628; Study 2 N = 376; Study 3 N = 446). The results revealed that sleep quality, sleep duration, sleep disturbances, pre-sleep worries and sleep schedule variability mediated the relationship between social class and physical and mental health. Sleep remained a significant mediator when controlling for related variables and other mediators. Thus, the findings suggest that sleep partly explains social class differences in health. We discuss the importance of addressing sleep issues among students from lower social class backgrounds.

A survey of eating styles in eight countries: Examining restrained, emotional, intuitive eating and their correlates.

INTRODUCTION: Restrained, emotional and intuitive eating were examined in relation to each other and as correlates of participants' weight status, body image and self-esteem. In some past research, restrained and emotional eating have been associated with higher weight status and poorer mental health, while intuitive eating is more frequently linked to lower weight status and more positive well-being. However, these eating styles have rarely been examined together and never in a large cross-country sample. METHOD: Six-thousand two-hundred and seventy-two (6272) emerging adults (M age = 21.54 years, SD = 3.13) completed scales from the Three-Factor Eating Questionnaire, the Eating Disorders Examination Questionnaire, the Intuitive Eating Scale-2, the Multidimensional Body Self Relations Questionnaire, the Rosenberg Self-Esteem Scale, and provided weight and height information that was used to calculate body mass index (BMI). Participants resided in Australia, Belgium, Canada, China, Italy, Japan, Spain and the United States and provided information using an online survey. RESULTS: Path analyses for the entire sample revealed significant pathways between higher intuitive eating and higher body satisfaction and self-esteem, and lower BMIs among participants. Higher levels of restrained and emotional eating were associated with lower body satisfaction and self-esteem, and higher BMIs among participants. Minor cross-country differences were evident in these patterns of relations, but intuitive eating emerged as a consistent predictor across countries. CONCLUSION: Overall, findings suggest that efforts should be made to increase intuitive eating among emerging adults and to support individual and macrolevel interventions to decrease restrained and emotional eating behaviours.

Testing of a model for risk factors for eating disorders and higher weight among emerging adults: Baseline evaluation.

Although a range of risk factors have been identified for disordered eating and weight status, the breadth of risk factors have been rarely considered within a single, comprehensive model. The robustness of these findings across countries also remains an open question. The present study sampled 6272 participants aged 18-30 years from eight countries in an attempt to evaluate combined and unique predictors for these two conditions, and to explore possible cross-country differences in these models. Participants completed a range of demographic, biological, behavioral, psychological, and sociocultural measures to test a comprehensive model of the contributions of these predictors for disordered eating and weight-related constructs (binge eating, body mass index, compensatory behaviors, dietary restraint, drive for muscularity, and drive for leanness). Structural invariance testing within a multigroup path analysis framework revealed that a single model across the eight countries provided poor model fit. Freeing of 22% of parameters across countries provided excellent fit and a satisfactory compromise for country-invariant and country-variant parameters in the model. Overall, predictors accounted for between 15% and 60% of variance in the outcome measures, with lowest explained variance for the disordered eating outcomes. Significant unique contributions to prediction were observed for each of the five risk factor variable types and across the eight countries. Thus, the findings show strong support for this model as an explanatory framework of both disordered eating and weight status.

Personality, weight loss and obesity-related well-being post-bariatric surgery.

PURPOSE: The aim of the study was to examine the associations between personality, weight loss and obesity-related well-being post-bariatric surgery. It was hypothesised that persons who had undergone bariatric surgery who exhibit Extraversion, Conscientiousness, Agreeableness and Intellect/Imagination will have greater obesity-related well-being; whereas, those low on Emotional stability will have poorer obesity well-being. METHOD: The cross-sectional sample comprised 127 females who had received bariatric surgery. The average age of participants was 45 years. Quality of life was measured using the Obesity-Related Well-Being scale (ORWELL 97). Personality was assessed with the International Personality Item Pool (IPIP) 50-item measure of the Five-Factor Model. RESULTS: The mean BMI for the sample was 34.13 (SD = 7.8). Females with a larger BMI who had undergone bariatric surgery had lower obesity-related well-being. Conscientiousness was negatively associated with BMI. Separate Hierarchical regression analyses found that Emotional stability (Beta = - .43, - .47, - .36) and Agreeableness (Beta = .27, .29, .25) predicted overall well-being, symptom occurrence and subjective relevance of distress, respectively. BMI predicted occurrence of symptoms (Beta = .23). CONCLUSIONS: The findings have implications for the development of personality-informed interventions for bariatric patients in enhancing well-being and weight-loss maintenance following surgery. LEVEL OF EVIDENCE: Level III: Evidence obtained from well-designed cohort or case-control analytic studies.

Associations of Spiritual Well-Being and Hope with Health Anxiety Severity in Patients with Advanced Coronary Artery Disease.

Background and Objectives: Health anxiety is one of the most common problems in patients with coronary artery disease. The present study tested whether health anxiety severity could be predicted by spiritual well-being and hope in patients with advanced coronary artery disease. Materials and Methods: In a cross-sectional study, 100 patients with advanced coronary artery disease were recruited from hospitals and healthcare centers in Iran. Patients completed self-report scales, including the Spiritual Well-Being Scale, Adult Hope Scale, and Short Health Anxiety Inventory. Hierarchical multiple regression analyses were used to empirically explore the relations among variables. Results: Results indicated that patients who reported higher levels of hope (ß = 0.42, p < 0.01) and spiritual well-being (ß = 0.20, p < 0.05) reported lower levels of health anxiety. Agency (ß = 0.58, p < 0.01) scores were a significant negative predictor of health anxiety severity. Additionally, religious spirituality scores (ß = 0.28, p < 0.01) were shown to significantly negatively predict health anxiety level. However, the pathways components of hope and existential spirituality were not significant predictors. Conclusion: The findings of the present study indicate that spiritual well-being and hope could be important factors in determining health anxiety for adults with coronary artery disease, and their role is worthy of further exploration to help improve health anxiety for patients with coronary artery disease.

Pathway Linking Different Types of Childhood Trauma to Somatic Symptoms in a Subclinical Sample of Female College Students: The Mediating Role of Experiential Avoidance.

ABSTRACT: Research has shown that women are more prone to childhood trauma and this state is associated with somatic symptoms. Also, people who have been exposed to traumatic experiences use experiential avoidance to reduce negative emotions. However, the mediating role of experiential avoidance in the relationship between childhood trauma and somatic symptoms is not clear, so, the present study investigated whether the relationships among different types of childhood trauma and somatic symptoms could be explained by experiential avoidance in female college students. In a cross-sectional study, 251 Iranian female college students with somatic symptoms were recruited from the University of Tabriz. Participants completed self-report scales, including the Persian version of Child Abuse Self-Reported Scale, Acceptance and Action Questionnaire-II (AAQ-II), and the Patient-health questionnaire (PHQ-15). A path analysis was used to empirically explore the relationships. Structural equation modeling analyses confirmed a partial mediation model. Study participants who had a higher level of emotional trauma reported higher levels of somatic symptoms. Emotional and neglect trauma showed significant positive relations with experiential avoidance. Bootstrapping results showed that experiential avoidance partially mediated the relationship between emotional trauma and somatic symptoms. Moreover, the association between neglect and somatic symptoms was fully mediated by experiential avoidance. These findings suggest that experiential avoidance might be one mechanism explaining how adverse emotional and neglect experiences influence somatic symptoms. Interventions addressing experiential avoidance through methods such as emotion-focused therapy and mindfulness are discussed as potential future directions for treating somatic symptoms in females who experienced emotional and neglect trauma.

Cross-Country Measurement Invariance and Effects of Sociodemographic Factors on Body Weight and Shape Concern-Related Constructs in Eight Countries.

The aim of this study was to examine the cross-country invariance of five well-established measures of body weight and shape concern-related attitudes and behaviors (i.e., drive for leanness, drive for muscularity, strategies to increase muscle, strategies to lose weight, and weight and shape concerns). A secondary objective was to examine the effects of several sociodemographic factors (age, BMI, socioeconomic status, and gender) on item and latent factor scores of these constructs. A total of 6272 emerging adults (4218 women; Mage = 21.46, SD = 3.11) from Australia, Belgium, Canada, China, Italy, Japan, Spain, and the U.S. completed a self-report online survey as part of a larger study. Overall, support for partial invariance both across countries and in terms of the considered sociodemographic factors was found for reduced versions of the five measures. Significant differences in latent means were found across countries, these being of greater magnitude for drive for leanness and strategies to lose weight. The considered sociodemographic factors (most notably BMI and gender) were associated with the latent mean scores of the assessed constructs. The present study contributes to current literature by providing cross-cultural invariant versions of several measures of relevance in the field of body image.

Psychometric properties of measures of sociocultural influence and internalization of appearance ideals across eight countries.

The aim of the current study was to examine the psychometric properties of two well-established measures of sociocultural influence and internalization of the thin/low body fat ideal and muscular ideal. Data from 6272 emerging adults (68.9 % female), aged 18-30 years from Australia, Belgium, Canada, China, Italy, Japan, Spain, and the U.S. were included in this study. Participants completed measures of pressure from mother, fathers, peers, and media, to both increase muscles and lose weight, as well as internalization of the thin/low body fat ideal and muscular ideal. Overall, support for partial invariance was found across the scales. In addition, group level differences were found between countries as well as along demographic factors including gender, age, body mass index, and socioeconomic status. These findings make an important contribution by identifying these scales as useful tools that will support future cross-country and cross-cultural examinations of explanatory models of the development of body image and eating concerns grounded within sociocultural theories.

Assessing positive body image, body satisfaction, weight bias, and appearance comparison in emerging adults: A cross-validation study across eight countries.

Positive body image refers to individuals' ability to conceptualize their bodies with love, respect, and appreciation. The study of positive body image is relatively new, and instruments used to investigate this multi-faceted construct have received limited use in non-English speaking countries. Thus, the aim of this investigation is to consider four measures that are associated with positive body image across eight different countries. Participants (n = 6272) completed the Body Appreciation Scale-2, the Body Areas Satisfaction Scale, the Physical Appearance Comparison Scale, and the Weight Bias Internalization Scale. Multi-group confirmatory factor analyses (MG-CFAs) and item-response theory (IRT) models were used to examine the measurement invariance of these surveys. Our results generally suggest that positive body image, weight bias, and appearance comparison can be assessed using brief assessments and that these four instruments can be used in different countries, but care should be taken to consider individuals' gender, BMI, and socio-economic position.

A cross-country examination of emotional eating, restrained eating and intuitive eating: Measurement Invariance across eight countries.

This study examined the measurement invariance of three scales that assessed emotional eating, restrained eating, and intuitive eating across eight countries (Australia, Belgium, Canada, China, Italy, Japan, Spain and the United States) in order to determine their suitability for cross-country body image research. A total of 6272 young adults took part in this study. Participants completed an online survey including the Emotional Eating subscale of the Three Factor Eating Questionnaire-Revised 21, the Restraint subscale of the Eating Disorder Examination Questionnaire, and the Reliance on Hunger and Satiety Cues subscale of The Intuitive Eating Scale-2. Multi-group confirmatory factor analysis was used to evaluate potential cross-country differences in functioning of the measures. Partial invariance for all three scales was found, with only minor levels of non-invariance identified. Multiple indicator multiple cause models identified BMI and gender as potential influences on scores for these measures. Sources of invariance across groups are discussed, as well as implications for further substantive research across countries involving these measures.

Measuring perfectionism, impulsivity, self-esteem and social anxiety: Cross-national study in emerging adults from eight countries.

This study assessed the measurement invariance of selected self-report measures of perfectionism, impulsivity, self-esteem and social anxiety in samples of emerging adults from eight different countries. Participants (N = 6272) completed the Multidimensional Perfectionism Scale (MPS), the UPPS-P Impulsive Behavior Scale, the 5-item Rosenberg Self-Esteem Scale (5-item RSES) and the Social Interaction Anxiety Scale (SIAS-6). Multigroup confirmatory factor analysis was run to examine cross-measure equivalence. Evidence for structural invariance was found for all questionnaires, while weak invariance was supported only for the 5-item RSES and the SIAS-6, and a partial weak invariance was found for the MPS and the UPPS-P. No measure achieved strong invariance. Strict invariance was achieved for the 5-item RSES, whereas only a partial strict invariance was supported for the MPS, UPPS-P and SIAS-6. These results suggest that perfectionism, impulsivity, self-esteem, and social anxiety are subjected to linguistic/cultural influence as well as to the effects of socio-demographic variables and can be evaluated by using the selected measures in eight different countries worldwide - but results should be interpreted with caution.

Pathway linking dispositional mindfulness to fatigue in oncology female nurses: Exploring the mediating role of emotional suppression.

PURPOSE: Fatigue is a physical and emotional state associated with certain aspects of nursing practice. The current study aimed to investigate the indirect effect of dispositional mindfulness on fatigue via emotional suppression in oncology female nurses. METHODS: In a cross-sectional study, 137 female oncology nurses were recruited from several hospitals to complete baseline questionnaires. Emotional suppression, dispositional mindfulness and fatigue were assessed with the Weinberger Adjustment Inventory (WAI), Five Facet Mindfulness Questionnaire (FFMQ) and the Multidimensional Fatigue Inventory (MFI) respectively. A Mediation model was tested using structural equation modelling. FINDINGS: Dispositional mindfulness was negatively associated with emotional suppression (ß = -0.69, p = 0.000). In addition, emotional suppression was positively associated with fatigue (ß = 0.32, p = 0.014). The mediation path was significant with emotional suppression fully mediating the relationship between dispositional mindfulness and fatigue (b = -0.20 [CI: -0.01, -0.25]. DISCUSSION: These results support the proposed model, and the assumption that emotional suppression may help facilitate the onset of fatigue or maintain it in female oncology nurses. The findings have implications for the use of brief mindfulness interventions aimed at the effective regulation of emotion in oncology nurses to aid in well-being and optimal nursing practice.

Translational aspects of body image research for obesity-related quality of life and weight loss maintenance post-bariatric surgery.

BACKGROUND: The Aim of the study was to examine obesity health-related quality of life and body image satisfaction in a group of individuals having undergone bariatric surgery. METHODS: One hundred and forty-two persons who had undergone bariatric surgery answered an online survey which included measures of well-being and body image. The Multidimensional Body Self-Relations Questionnaire-Appearance Scales (MBSRQ-AS 34) was used to assess body image in relation to appearance evaluation (AE), appearance orientation (AO), overweight preoccupation (OP), self-classified weight (SCW), and body areas satisfaction (BASS). Obesity-related quality of life was assessed with the obesity related well-being scale (Orwell 97). RESULTS: Hierarchical multiple regression indicated that 50.2% of the variance in well-being post-surgery was explained by body image variables [F(6,84) =18.54, P<0.01], with the strongest predictor being satisfaction with body areas (B=-0.360, P<0.01). Regression analysis of the data for the group of patients who had received the vertical sleeve surgery was also significant, [F(6,56) =10.16, P<0.001] with satisfaction with different body areas being the best predictor of well-being (B=-0.365, P<0.05), followed by OP (B=0.313, P<0.05) and SCW (B=0.281, P<0.05). CONCLUSIONS: Body image concerns are more important predictors for well-being post bariatric surgery than weight lost. Psychological factors such as the perception of body areas, continued weight preoccupation and SCW rather an objective weight were better predictors of well-being, symptoms that impacted on well-being and on the subjective relevance of the symptoms to well-being. Recommendations for the translation of the present research findings for the surgical preparation of the bariatric patient and for post-surgery care are suggested.

Development and testing of a model for risk and protective factors for eating disorders and higher weight among emerging adults: A study protocol.

Research has demonstrated that eating disorders (ED) and higher weight have lifetime co-occurrence suggesting that they may be best considered within a common etiological model. Although we know that body dissatisfaction is likely to be a risk factor for both outcomes, other proposed risk and protective factors for each condition have not been adequately explored. The current paper tests a conceptual model that is based on a review of the existing literature from both areas of scholarship. It considers biological, sociocultural, psychological, and behavioral factors that may contribute to both outcomes. The model will be tested in a longitudinal design with an initial sample of 600 emerging adults (aged 18-30) per country in nine different countries (total sample = 5400 participants). Questionnaires will be completed online on two occasions, 12 months apart. The first full phase of the study commenced in July 2018, the same time Body Image was approached to publish this protocol paper (the final revised paper was submitted in September 2019), and data collection will be finalized in December 2019. Multi-group path analysis will identify the biopsychosocial predictors - both cross-sectionally and longitudinally - of both ED and higher weight, and how these vary across countries and gender.

Psychological Support and Well-being in Post-Bariatric Surgery Patients.

Bariatric surgery research has focused predominantly on weight loss outcomes and complications of surgery in relation to the type of surgical procedure. The psychological impact of having bariatric surgery has received less attention. This study investigated whether patients who receive psychological counselling have better physical and mental well-being post-bariatric surgery. Eighty-eight persons (81 female, 7 male, M age 43.99 years) who had undergone weight loss surgery were recruited from bariatric surgery and obesity online support groups to answer an electronic survey which included the Health Survey Short Form (SF-12) to assess mental and physical well-being. Patients who had attended ≥ 6 counselling sessions after gastric sleeve surgery had better physical well-being, compared to those who attended < 6 sessions. Patients who attended between one and four psychological counselling sessions had significantly higher mental well-being. Psychological support for the mental health needs of obese patients post-surgery requires more attention.

Dental anxiety in patients attending a student dental clinic.

BACKGROUND: This study investigated the expectations and experiences of a sample of new patients visiting an Australian regional university Student Dental Clinic with regard to anxiety provoking and alleviating stimuli in the clinical environment. Differences in anxiety levels were examined by age, gender and the type of procedure undergone. METHODS: The number of dental patients who participated in the study was 102 (56 males, 43 females). The study used a pre-treatment/post-treatment design to assess the effect of the dental procedure on anxiety levels of patients. The Modified Dental Anxiety Scale (MDAS) was used to measure anxiety levels in patients at pre-treatment. Questions were also asked about factors which may increase (length of the appointment, invasiveness of procedure) or decrease (perceived student interpersonal skills and clinical ability) dental fear. RESULTS: Females reported higher total MDAS scores (M = 11.93) compared to males (M = 9.94). Younger patients (M = 12.15) had higher dental anxiety than older patients (M = 9.34). There was a reduction in dental anxiety from pre-treatment (M = 1.92) to post-treatment (M = 1.23) on the single item anxiety measure though most of the treatment being undergone by patients was for less complex procedures. CONCLUSIONS: Patients' anticipatory experience of anxiety was higher than the anxiety experience after having undergone treatment at the student dental clinic. Student interpersonal skills and clinical ability as perceived by the patient can lessen dental anxiety in patients. Clinical Supervisor-student ratios need to be more equivalent in order to reduce the time length of appointments which currently are associated with increased patient anxiety levels in student dental clinics.

The interrelationship between orthorexia nervosa, perfectionism, body image and attachment style.

PURPOSE: We investigated whether perfectionism, body image, attachment style, and self-esteem are predictors of orthorexia nervosa. METHODS: A cohort of 220 participants completed a self-administered, online questionnaire consisting of five measures: ORTO-15, the Multidimensional Perfectionism Scale (MPS), the Multidimensional Body-Self Relations Questionnaire-Appearance Scale (MBSRQ-AS), the Relationship Scales Questionnaire (RSQ), and Rosenberg's Self-Esteem Scale (RSES). RESULTS: Correlation analysis revealed that higher orthorexic tendencies significantly correlated with higher scores for perfectionism (self-oriented, others-oriented and socially prescribed), appearance orientation, overweight preoccupation, self-classified weight, and fearful and dismissing attachment styles. Higher orthorexic tendencies also correlated with lower scores for body areas satisfaction and a secure attachment style. There was no significant correlation between orthorexia nervosa and self-esteem. Multiple linear regression analysis revealed that overweight preoccupation, appearance orientation and the presence of an eating disorder history were significant predictors of orthorexia nervosa with a history of an eating disorder being the strongest predictor. CONCLUSIONS: Orthorexia nervosa shares similarities with anorexia nervosa and bulimia nervosa with regards to perfectionism, body image attitudes, and attachment style. In addition, a history of an eating disorder strongly predicts orthorexia nervosa. These findings suggest that these disorders might be on the same spectrum of disordered eating.

The Impact of Prior Flavivirus Infections on the Development of Type 2 Diabetes Among the Indigenous Australians.

It is estimated that 5% of Australians over the age of 18 have diabetes, with the number of new cases increasing every year. Type 2 diabetes (T2D) also represents a significant disease burden in the Australian indigenous population, where prevalence is three times greater than that of non-indigenous Australians. Prevalence of T2D has been found to be higher in rural and remote indigenous Australian populations compared with urban indigenous Australian populations. Several studies have also found that body mass index and waist circumference are not appropriate for the prediction of T2D risk in indigenous Australians. Regional and remote areas of Australia are endemic for a variety of mosquito-borne flaviviruses. Studies that have investigated seroprevalence of flaviviruses in remote aboriginal communities have found high proportions of seroconversion. The family Flaviviridae comprises several genera of viruses with non-segmented single-stranded positive sense RNA genomes, and includes the flaviviruses and hepaciviruses. Hepatitis C virus (HCV) has been shown to be associated with insulin resistance and subsequent development of T2D. Flaviviruses and HCV possess conserved proteins and subgenomic RNA structures that may play similar roles in the development of insulin resistance. Although dietary and lifestyle factors are associated with increased risk of developing T2D, the impact of infectious diseases such as arboviruses has not been assessed. Flaviviruses circulating in indigenous Australian communities may play a significant role in inducing glucose intolerance and exacerbating T2D.

Development and validation of the medical social self-efficacy scale for use in culturally diverse communities.

This study developed a new scale, The Medical Social Self-efficacy Scale (MSSES), to assess social self-efficacy within a medical context for patients of diverse cultural and linguistic backgrounds. Validation of the MSSES with a sample of 113 persons indicated that the scale has good internal consistency, with a Cronbach's alpha coefficient of .85. A factor analysis yielded two factors (confidence in seeking medical information, confidence in stating my view) which accounted for 64% of the total variance. Split-half reliability of the MSSES was .84. Predictive validity of the MSSES and its factorial structure was found for the mental component summary and general health subscale of the 12-item Short-Form Health Survey. Evidence of concurrent validity was found with the active coping, planning and positive reframing subscales of the Brief COPE. Concurrent validity was also found for the MSSES and its factors, in regard to the emotion-focused coping composite subscale of the Brief COPE. The results indicate that the MSSES appears to be a psychometrically sound instrument.

Binge eating partially mediates the relationship between body image dissatisfaction and psychological distress in obese treatment seeking individuals.

INTRODUCTION: We compared the binge eating pathway linking body image dissatisfaction (BID) and psychological distress of obese adults entering and not entering psychological treatment for their weight problems. METHOD: 90 obese participants seeking an integrated treatment (OB-IT) and 87 obese participants seeking only medical treatment (OB-MT) for their weight problems completed questionnaires on BID, binge eating and psychological well-being. RESULTS: Only in the OB-IT group, binge eating behaviors mediated the relationship between BID and psychological distress. CONCLUSIONS: Both BID and binge eating behaviors need to be addressed in the psychological and medical treatment for obesity to enhance psychological well-being.