BackgroundThere is an increased risk of obesity amongst socioeconomically disadvantaged populations and emerging evidence suggests that psychological stress may be a key factor in this relationship. This paper reports the results of cross-sectional and longitudinal analyses of relationships between perceived stress, weight and weight-related behaviours in a cohort of socioeconomically disadvantaged women.MethodsThis study used baseline and follow-up self-report survey data from the Resilience for Eating and Activity Despite Inequality study, comprising a cohort of 1382 women aged 18 to 46 years from 80 of the most socioeconomically disadvantaged neighbourhoods in Victoria, Australia. Women reported their height (baseline only), weight, sociodemographic characteristics, perceived stress, leisure-time physical activity, sedentary and dietary behaviours at baseline and three-year follow-up. Linear and multinomial logistic regression were used to examine cross-sectional and longitudinal associations between stress (predictor) and weight, and weight-related behaviours.ResultsHigher perceived stress in women was associated with a higher BMI, and to increased odds of being obese in cross-sectional and longitudinal analyses. Cross-sectional and longitudinal associations were found between stress and both less leisure-time physical activity, and more frequent fast food consumption. Longitudinal associations were also found between stress and increased television viewing time.ConclusionThe present study contributes to the literature related to the effects of stress on weight and weight-related behaviours. The findings suggest that higher stress levels could contribute to obesity risk in women. Further research is needed to fully understand the mechanisms underlying these associations. However, interventions that incorporate stress management techniques might help to prevent rising obesity rates among socioeconomically disadvantaged women.

Aim: This pilot study aimed to assess the feasibility and appeal of using existing hand-held mobile technology (iPod or iPad) 'apps' as tools promoting healthy food planning, shopping and eating behaviours among socioeconomically disadvantaged women. Methods: Surveys were administered before and immediately after a 4-week trial of seven currently available iPod or iPad apps, each of which addressed known barriers to healthy eating among socioeconomically disadvantaged women. A convenience sample was recruited from a local community in Melbourne, Australia, comprising 19 women with a low education (fewer than 12 years of formal education) or a low income (a household income of less than $1000 per week, and/or having a pension or benefit as the main source of income). Results: More than half of the sample (n = 11, 61%) used most apps at least weekly over the study period. Few found any of the apps complex or difficult to use, and most (n = 14) reported that they would use their preferred apps again. Features liked included portability, simplicity, user-friendliness, and novelty/new knowledge provided by certain apps; less appealing features included requirements for time-consuming data entry and inability to access features offline. Conclusions: Selected iPod and iPad apps are useable and appealing to socioeconomically disadvantaged women. Particular features of apps, including simplicity of use and providing seasonal information, appear helpful in assisting women to plan, shop and consume healthy foods. So what?This study demonstrates a promising approach for reaching and engaging socioeconomically disadvantaged target populations in healthy eating, through the use of mobile apps. Further research establishing the effectiveness of these apps in promoting healthy food planning, shopping and eating behaviours is now warranted.