Amanda D. Hutchinson

Improving nutrition and physical activity in the workplace: a meta-analysis of intervention studies

A comprehensive search of the literature for studies examining physical activity or nutrition interventions in the workplace, published between 1999 and March 2009, was conducted. This search identified 29 relevant studies. Interventions were grouped according to the theoretical framework on which the interventions were based (e.g. education, cognitive-behavioural, motivation enhancement, social influence, exercise). Weighted Cohens d effect sizes, percentage overlap statistics, confidence intervals and fail safe Ns were calculated. Most theoretical approaches were associated with small effects. However, large effects were found for some measures of interventions using motivation enhancement. Effect sizes were larger for studies focusing on one health behaviour and for randomized controlled trials. The workplace is a suitable environment for making modest changes in the physical activity, nutrition and health of employees. Further research is necessary to determine whether these changes can be maintained in the long term.

A meta-analysis of the effects of chemotherapy on cognition in patients with cancer.

OBJECTIVE The aim of this meta-analysis was to assess whether chemotherapy-related cognitive impairment is consistently observed in cancer patients and to identify the areas of cognition affected. METHODS The meta-analysis included 13 studies and examined the effects of chemotherapy on seven different cognitive domains, across five cancer types. It was the intention of this meta-analysis to stringently exclude many studies, allowing for examination of cognition in carefully selected studies of chemotherapy recipients who do not have current mood or anxiety diagnoses (or psychiatric or substance abuse histories), without brain cancer and who have not had radiotherapy or hormone treatment. A moderator analysis examined whether patient age, treatment duration and time since treatment end significantly contributed to chemotherapy-related cognitive impairment. RESULTS Evidence for the presence of cognitive impairment following cancer treatment was established for executive function and memory. No relationship was found between cognitive impairment and time since treatment cessation but a significant negative relationship was found for treatment duration. Age had no impact on treatment-related cognitive impairment. CONCLUSIONS Future research must be conducted on chemotherapy-related cognitive impairment in cancer types such as lymphoma and leukaemia, which have received a moderate amount of attention and colorectal cancer, which has received little attention. This would enable us to determine the extent to which chemotherapy-related cognitive impairment is a universal phenomenon associated with the cancer experience and its treatment regardless of cancer type.

Nonpharmacological Treatments for ADHD: A Meta-Analytic Review

Objective: The authors replicated and expanded on Fabiano et al.’s meta-analysis of behavioral treatments for ADHD, systematically comparing the efficacy of 7 nonpharmacological interventions. Method: A total of 14 controlled treatment studies conducted post-1994—evaluating behavior modification, neurofeedback therapy, multimodal psychosocial treatment, school-based programs, working memory training, parent training, and self-monitoring—were identified, primarily by searching electronic English-language databases. The results were meta-analyzed: mean-weighted effect sizes for the treatment outcomes of 625 participants (382 treatment, 243 controls) were calculated, and moderator analyses examined contributions of gender, ADHD subtype, and treatment “dosage” to outcome. Results: Behavior modification and neurofeedback treatments were most supported by this evidence. Interventions were generally more efficacious for girls, and least efficacious for the “combined” ADHD subtype. The authors found no dose or age effects. Conclusion: Based on the small, published literature, this study supports some nonpharmacological interventions for ADHD, and indicates directions for more evaluation research into psychological treatments.

The role of skin cancer knowledge in sun-related behaviours: a systematic review

Skin cancer is the most commonly diagnosed cancer in many Western countries. This systematic review provides a comprehensive overview of the relationship between skin cancer knowledge and sun-protective, exposure and tanning behaviours in the general population. A total of 34 studies, published in peer-reviewed journals over three decades, were reviewed and synthesised. Sun-protective behaviour was positively associated with skin cancer knowledge in most cases. Findings were inconsistent regarding other sun-related behaviours. Heterogeneity in measurement compromised the capacity to definitively link knowledge and sun-related behaviours. There is a need for development and utilisation of a standardised skin cancer knowledge scale, and guidelines are suggested.

The Skin Cancer and Sun Knowledge (SCSK) Scale Validity, Reliability, and Relationship to Sun-Related Behaviors Among Young Western Adults

Increasing public knowledge remains one of the key aims of skin cancer awareness campaigns, yet diagnosis rates continue to rise. It is essential we measure skin cancer knowledge adequately so as to determine the nature of its relationship to sun-related behaviors. This study investigated the psychometric properties of a new measure of skin cancer knowledge, the Skin Cancer and Sun Knowledge (SCSK) scale. A total of 514 Western young adults (females n = 320, males n = 194) aged 18 to 26 years completed measures of skin type, skin cancer knowledge, tanning behavior, sun exposure, and sun protection. Two-week test–retest of the SCSK was conducted with 52 participants. Internal reliability of the SCSK scale was acceptable (KR-20 = .69), test–retest reliability was high (r = .83, n = 52), and acceptable levels of face, content, and incremental validity were demonstrated. Skin cancer knowledge (as measured by SCSK) correlated with sun protection, sun exposure, and tanning behaviors in the female sample, but not in the males. Skin cancer knowledge appears to be more relevant to the behavior of young women than that of young males. We recommend that future research establish the validity of the SCSK across a range of participant groups.

The Relationship between Social Networking Site Use and the Internalization of a Thin Ideal in Females: A Meta-Analytic Review

Previous research has indicated that exposure to traditional media (i.e., television, film, and print) predicts the likelihood of internalization of a thin ideal; however, the relationship between exposure to internet-based social media on internalization of this ideal remains less understood. Social media differ from traditional forms of media by allowing users to create and upload their own content that is then subject to feedback from other users. This meta-analysis examined the association linking the use of social networking sites (SNSs) and the internalization of a thin ideal in females. Systematic searches were performed in the databases: PsychINFO, PubMed, Web of Science, Communication and Mass Media Complete, and ProQuest Dissertations and Theses Global. Six studies were included in the meta-analysis that yielded 10 independent effect sizes and a total of 1,829 female participants ranging in age from 10 to 46 years. We found a positive association between extent of use of SNSs and extent of internalization of a thin ideal with a small to moderate effect size (r = 0.18). The positive effect indicated that more use of SNSs was associated with significantly higher internalization of a thin ideal. A comparison was also made between study outcomes measuring broad use of SNSs and outcomes measuring SNS use solely as a function of specific appearance-related features (e.g., posting or viewing photographs). The use of appearance-related features had a stronger relationship with the internalization of a thin ideal than broad use of SNSs. The finding suggests that the ability to interact with appearance-related features online and be an active participant in media creation is associated with body image disturbance. Future research should aim to explore the way SNS users interact with the media posted online and the relationship linking the use of specific appearance features and body image disturbance.

Watching reality weight loss TV. The effects on body satisfaction, mood, and snack food consumption.

The present study investigated the influence of a weight loss reality TV show on body satisfaction, mood and food consumption. Young Australian women (N = 99) first completed baseline measures of state body satisfaction and mood. They were then randomly allocated to either a weight loss or a home renovation programme and were provided with snack foods during viewing. Post-measures included state body satisfaction, state mood and trait dietary restraint and snack food consumption. BMI moderated the relationship between condition and body satisfaction and mood. Larger women experienced less body satisfaction and less positive mood in response to the weight loss programme. Dietary restraint moderated the relationship between condition and food consumption. A greater percentage of women with lower dietary restraint ate in the control condition; whilst a greater percentage of women with higher dietary restraint ate food whilst watching the weight loss programme. These findings highlight the potential negative impact of weight-focused reality TV on mood, body satisfaction and snack food consumption among some women.

Australian young adults’ tanning behaviour: The role of ideal skin tone and sociocultural norms

Objective Decreasing intentional tanning behaviour is a critical area of skin cancer prevention. Research evidence that tanning behaviour is significantly influenced by appearance motivations exists. The Tripartite Influence Model posits that internalisation of ideals about body image mediates the relationship between sociocultural norms and appearance‐related behaviour and has been demonstrated primarily in the domain of weight. This study aimed to assess whether ideal skin tone (internalisation of a tanned ideal) mediated the endorsement of sociocultural norms about attractiveness of tanned skin and 12‐month tanning behaviour. Method Young adult participants (N = 514) from the university (removed for blind review) were surveyed regarding their ideal skin tone and sociocultural norm endorsement. Results At 12‐month follow‐up, 246 participants reported their tanning behaviour over the previous year. Results indicated that the internalisation of a tanned ideal mediated the relationship between sociocultural norms and tanning behaviour for females but not males. Young adult males also desired a tanned appearance, and peer sociocultural perceptions were associated with male tanning behaviour. Conclusions This research lends support to the proposition that the Tripartite Influence Model has explanatory power for tanning behaviour. We recommend that future research involving young adults incorporate skin tone and tanning as a component of body image alongside body shape and eating behaviours.

Protocol for a randomized controlled trial testing the impact of feedback on familial risk of chronic diseases on family-level intentions to participate in preventive lifestyle behaviors

BackgroundCommon disease risk clusters in families due to shared genetics, exposure to environmental risk factors, and because many health behaviours are established and maintained in family environments. This randomised controlled trial will test whether the provision of a family health history (FHH) risk assessment tool increases intentions and engagement in health behaviors. Message distribution and collective behavior change within family networks will be mapped using social network analysis. The relative intervention impact will be compared between families from different ethnic backgrounds.MethodsOne hundred and fifty mothers (50 Anglo-Australian, 50 Italian-Australian, 50 Vietnamese-Australian) will be recruited, with four or more other family members across three generations, including a child (aged 10–18 years). Each family is randomly assigned to intervention or control. At baseline and 6-month follow-up, all participants complete surveys to assess dietary and physical activity intentions and behaviors, attitudes towards food, and perceived disease risk. Intervention families receive a visual pedigree detailing their FHH of diabetes, heart disease, breast and bowel cancer, a health education workbook to ascertain members’ disease risk (i.e. average or above average risk), and screening and primary prevention recommendations. After completion of follow-up assessments, controls will receive their pedigree and workbook. The primary hypothesis is that attitudes and lifestyle behaviors will improve more within families exposed to FHH feedback, although the extent of this improvement may vary between families from different ethnic backgrounds. Additionally, the extent of improvement in the treatment group will be moderated by the level of family disease risk, with above-average risk leading to greater improvement. A secondary aim will explore different family members’ roles in message distribution and collective responses to risk using social network approaches and to compare network functioning between families with different ethnic backgrounds.DiscussionResults will guide future health promotion programs aimed at improving lifestyle factors. This research will assess whether FHH can motivate families to adopt family-level strategies to support health promoting behaviors. Secondary analyses aim to identify change agents within the family who are particularly effective in shifting normative behaviors.Trial registrationAustralian New Zealand Clinical Trials Registry ACTRN12613001033730. Retrospectively registered: 17 September, 2013.

Emotional distress when studying sensitive topics in psychology, and its relationship with hardiness and mental health

ABSTRACT This observational, cross-sectional study examined students’ retrospective recall of emotional distress when studying sensitive topics in psychology, and whether hardiness had a mediated pathway to emotional distress through a mental health condition (MHC). Psychology undergraduates (155 women, 34 men) from South Australian universities completed self-report questionnaires assessing hardiness, retrospective measures of emotional distress when studying a range of topics, their concurrent MHC and lifetime cumulative trauma. As hypothesised, students reported more emotional distress to sensitive topics relative to nonsensitive ones, p < .001 (r = −.69). Hardiness was significantly negatively correlated with MHC, p < .001 (r = −.38). Causal mediation analysis revealed, as predicted, that MHC mediated the effect of hardiness on emotional distress (p < .001). These results are consistent with existing literature on students’ reactions to sensitive topics in medical, law and social work education, as well as previous findings of negative associations between hardiness and mental health outcomes. Implications for higher education policy and practice are discussed, including the use of hardiness assessments as an early screening tool for mental health decline. Future research should identify the specific MHCs involved in the mediated pathway from hardiness to course-related emotional distress, and employ longitudinal designs to confirm the temporal ordering of variables.