Using positive deviance for determining successful weight-control practices

Positive Deviance and Exploring the Role of Mental Health on Early Postoperative Recovery After Total Hip Arthroplasty: A Retrospective Analysis Using the PROMIS-10 Global Health

INTRODUCTION

Mental illnesses are well-known factors that contribute to poor outcomes among total hip arthroplasty (THA) patients. However, a dichotomized mental illness diagnosis may not reflect the complex biopsychosocial factors contributing to a patient's health. Investigating patients who achieve positive outcomes despite having risk factors, known as positive deviants, may help identify protective characteristics and decrease health disparities among this growing population of patients. Using preoperative Mental Health T-scores (MHT) from the PROMIS-10 Global Health questionnaire among patients with a mental illness diagnosis, the purpose of this study was to explore whether patients with above-average MHT, or positive deviants, experienced a different immediate postoperative recovery path compared with patients with below-average MHT.

METHODS

This was a retrospective chart review of patients undergoing elective primary THA. Patients with a formal diagnosis of a mental health condition were divided based on their MHT (above average [AA] >50, average [A] 40 to 50, below average [BA] <40). Postsurgical parameters included total opioid consumption, self-reported pain scores, and discharge disposition.

RESULTS

A total of 299 patients were analyzed. After controlling for length of stay and type of mental illness, patients in the AA-MHT and A-MHT groups used 33.8 and 29.8 morphine milligram equivalents less than patients in the BA-MHT group during the inpatient stay, respectively. Patients in the AA-MHT group reported a 1.0 lower pain with activity score at discharge compared with patients in the BA-MHT group.

DISCUSSION

The intersection between patients with a mental illness in need of a THA is becoming more commonplace. Data suggest that patients with a mental illness who report AA-MHT on the PROMIS-10 Global Health questionnaire may represent positive deviants or those with a more positive in-hospital recovery path compared with those patients with BA-MHT.

LEVEL OF EVIDENCE

Diagnostic study-retrospective cohort study.

Multicentre positive deviance to reduce adverse events and length of stay after pulmonary resection

BACKGROUND

Postoperative adverse events (AEs) following pulmonary resection enormously impact patient well-being, length of stay (LOS) and healthcare costs. Standardised AE data collection can be used to identify positive outliers demonstrating positive deviance (PD) who may be helpful to inform the best practice. Here, we describe our initial experience of a novel quality improvement process using PD to reduce LOS and AEs.

METHODS

AE rates and LOS were collected from four centres (2014-2020) using a common dictionary. Surgeons repeatedly participated in 60 to 90 min seminars consisting of the following process: identify outcome and procedure targeted, review relevant best evidence literature, view all data anonymised by surgeon or centre (if multicentre), choose and reveal identity of best performance PD outliers, who discuss their management principles while all receive self-evaluation reports, followed by collegial discussion to generate consensus recommendations, voted by all. We assessed overall impact on AEs and LOS using aggregate data in a before/after analysis.

RESULTS

A total of 131 surgeons (average 12/seminar) participated in 11 PD seminars (8 local and 3 multicentre), yielding 85 consensus recommendation (average 8/seminar). Median LOS following lobectomy decreased from 4.0 to 3.0 days (p=0.04) following local PD seminars and from 4.0 to 3.5 days (p=0.11) following multicentre seminars. Trends for reductions in multiple AE rates were also observed.

CONCLUSION

While limited by the longitudinal design, these findings provide preliminary support for this data-driven, collegial and actionable quality improvement process to help standardise and improve patient care, and merits further more rigorous investigation.

Who moves in vulnerable Caribbean neighborhoods? Positive deviance for physical activity: Findings from the Jamaica health and Lifestyle Survey 2017 (JHLS III)

Decreased physical activity (PA) has been associated with residents living in neighborhoods perceived as being disordered or having high crime levels. What is unknown are the characteristics of individuals who engage in moderate to vigorous levels of PA (MVPA) despite living in these vulnerable neighborhoods, or who may be referred to as positive deviants (PD). We examined the factors associated with PD for PA among Jamaicans. Between 2016 and 2017 the Jamaica Health and Lifestyle Survey, a cross-sectional nationally representative survey (n = 2807), was conducted on individuals aged 15 years and older. Regression analyses were performed to identify associations with PD, defined using engagement in MVPA among persons living in vulnerable neighborhoods (N = 1710). Being female (odds ratio [OR]a = 0.64 (0.48, 0.86); p = 0.003), obese while living in an urban area (ORa = 0.39; 95 % CI = 0.26, 0.59; p < 0.0001), unemployed (ORa = 0.53; 95 % CI = 0.39, 0.73; p < 0.0001), or a student (ORa = 0.62; 95 % CI = 0.39, 0.98); p = 0.041) was associated with a significantly lower likelihood of PD, while having a personal medical history of at least one chronic disease significantly increased likelihood (ORa = 1.43; 95 % CI = 1.08, 1.90; p = 0.014). Taking a PD approach may be one angle to consider in trying to determine what is working and for whom, so that this may be harnessed in policy, prevention and intervention programming to increase PA.

Identification of positive parenting practices among parents of young children living in low-income and racially, ethnically, and culturally diverse households

Using the positive deviance approach, the purpose of this study was to identify parent feeding practices that might be protective against early childhood obesity among children with lower weight status (BMI percentile ≥5th-<85th) relative to higher weight status (BMI percentile ≥85th). Qualitative interviews were conducted with 71 parents of children aged 2-5 years old (48% girls) enrolled in the Minnesota Special Supplemental Nutrition Program for Women Infants and Children (WIC). Children were identified as having lower weight status (defined as 'positive deviants') (n = 36) or 'higher weight status' (n = 35), and were African American [n = 22], Hispanic [n = 23], or Hmong [n = 26]). Parents were asked about approaches to child feeding and health- and weight-related practices. Findings indicated that relative to caregivers of children with higher weight status, parents of children identified as positive deviant were more likely to report having a consistent routine for providing meals, using a guided choices approach, serving small portions of food during mealtimes, and trusting their child hunger and satiety cues. Moreover, parents of children identified as positive deviant were more likely to promote healthful eating and physical activity engagement and implement clear rules and limits for screen time than parents of children with higher weight status. Results suggest specific parent feeding behaviors and health-related practices that may influence child weight status among children living in low-income and racialized households. The findings of this study also provide research evidence and support the tenets of the Satter Division of Responsibility in Feeding framework. Parenting practices and strategies among parents of children identified as positive deviant are expected to be feasible and should be explored and communicated in future interventions to support age- and sex-recommended weight and health-related outcomes among young children to promote health equity.

Positive deviance in health and medical research on individual level outcomes - a review of methodology

BACKGROUND

Positive deviance as a methodology is increasing in application yet there is high variability in how this approach is applied in health services research.

METHODS

We conducted a scoping review of the literature for positive deviance applied to health outcomes informed by PRISMA-ScR. We searched the literature from 1945 to 2020, including articles on positive deviance or positive outliers, and restricted to examining individual rather than organizational outcomes. We analyzed the methodology applied including the process of identifying deviants, the use of control groups, and the degree of community engagement.

RESULTS

Our initial search identified 1140 manuscripts; we included 104 papers describing 98 studies, 11 topical and one miscellaneous category. Most studies used objective measures of health or survey-based responses to identify deviants from a sub-set of the population at risk. The use of controls was less common in some topics (hospital infections), whereas controls were universally applied in other topics (malnutrition). The degree of community engagement varied widely.

CONCLUSIONS

Positive deviance would benefit from improvements in reporting and standardized approaches to defining deviance. Studies could be improved through clarified definitions of deviance/risk, explicit descriptions of community engagement, and more consistent use of controls.

"OMG, Yes!": Feasibility, Acceptability, and Preliminary Efficacy of an Online Intervention for Female Sexual Pleasure

The purpose of this study was to evaluate the acceptability, feasibility, and preliminary efficacy of using an online educational resource that presents research-informed strategies for women's pleasure, OMGyes.com, as a resource to empower women to broaden the ways in which they understand, advocate for, and enjoy sexual pleasure. A cohort of 870 adult women was given access to OMGyes.com and asked to explore the resource over a four-week period and complete online pre/post questionnaires. Participants reported a high level of satisfaction with the relatability, usefulness, and functionality of OMGyes.com. We observed statistically significant, large effect size increases in participants' knowledge about their own pleasure preferences, their confidence and positivity about that knowledge, as well as how pleasurable their sexual experiences were during both masturbation and partner sex. Many participants reported that after using OMGyes.com they felt more motivated to explore their preferences and more confident to explain their preferences to their partners. Our data suggest that OMGyes.com may be useful for positively impacting how women think about sexual pleasure, how they understand their own specific preferences, how they advocate for what they enjoy with partners, and how they actually experience pleasure.

How does the food environment influence people engaged in weight management? A systematic review and thematic synthesis of the qualitative literature

People engaged in weight loss or weight loss maintenance (weight management) often regain weight long term. Unsupportive food environments are one of the myriad challenges people face when working towards a healthier weight. This systematic review explores how the food environment influences people engaged in weight management and the policy implications. Nine electronic databases (CINAHL, Medline, PsycINFO, Academic Search Complete, Embase, Ovid Emcare, PubMed, Open Grey, and BASE) were searched systematically in May 2020 to synthesize the qualitative evidence. Eligible studies were conducted with adults (18+) in high-income countries, available in English and published 2010-2020 with a substantial qualitative element and reference to food environments. Data were analyzed using a thematic synthesis approach. Quality assessment using the Critical Appraisal Skills Programme was undertaken. We identified 26 studies of 679 individuals reporting on weight management experiences with reference to the food environment. Limitations of the included studies included a lack of detail regarding socioeconomic status and ethnicity in many studies. The analysis revealed that food environments undermine efforts at weight management, consistently making purchasing and consumption of healthier food more difficult, particularly for those on a low income. For weight management to be more successful, concurrent actions to reshape food environments are necessary.

How do Positive Deviants Overcome Health-Related Stigma? An Exploration of Development of Positive Deviance Among People With Stigmatized Health Conditions in Indonesia

A constructivist grounded theory approach was used to understand how some people living with stigmatized health conditions develop positive deviance to overcome stigma. We examined interviews from 13 identified positive deviants living with four different stigmatized health conditions (HIV, leprosy, schizophrenia, and diabetes) in Indonesia. Positive deviance develops in the form of psychological empowerment through improvement of self-belief and perception (intrapersonal component), development of understanding and skill to exert control in life (interactional component), and self-discovery of successful behaviors and strategies to avert stigma (behavioral component). Positive deviants, after being empowered, start empowering others affected by sharing their knowledge and fostering social awareness and acceptance. The findings revealed the presence of problem-solving ability and agency within the community of stigmatized individuals in Indonesia and warrant researchers to partner with the community to expedite the diffusion of transferable positive deviant strategies within and outside the communities.

Revising Diabetes Programming for Black Men and Their Families

Type-2 diabetes has increased 160% for African American males in the United States. This two-part study's purpose was to apply social marketing theory to understand the Type-2 diabetes education needs of men in Iowa. Study One was a preference assessment of Type-2 diabetes education strategies. Four African American men participated in a series of four focus groups and indicated that they were interested in diabetes prevention programming with their families but not in having it labeled as diabetes education. Participating men would rather increase their physical activity as opposed to tracking their food intake. As a follow-up to this study, nine other African American males took part in Study Two, which used cooking demonstrations and recipe taste-testing with the men to examine their relationship to food in the context of managing their Type-2 diabetes. The findings of both studies, which provided insight into these African American men's lifestyle as related to their Type-2 diabetes, could be useful for nursing professionals who have a critical role in navigating cultural, gender, and family norms while developing care plans, offering patient education, and promoting quality of life.

Investigating improvements in premature death in two rural, majority-minority counties in the south

This exploratory study investigates counties in the southeast United States with mortality outcomes that were better than might be expected given their sociodemographic profiles (i.e., positive deviance). This study seeks to understand the community characteristics with the potential to moderate the negative health outcomes typically associated with social, geographic, or economic disadvantages. This article describes the process used to identify positive deviants and reports on the findings from key informant interviews in positive deviant counties to identify community factors or practices that might contribute to positive deviance in the observed outcomes. County Health Rankings and Roadmaps 2015 data and mortality trends were examined to identify positive deviant counties. The inclusion criteria were median household incomes in the lowest tertile of their state, ≥ 33% African American, and premature mortality rankings (as measured by Years of Potential Life Lost-YPLL) in the top quartile within their state. After benchmarking county rates against national figures and retaining counties with significant improvement trends, two counties emerged as positive deviants, Dooly County, Georgia and Washington County, North Carolina. Key informant interviews (n = 11) were conducted with community stakeholders in the study counties to better understand the community characteristics that could lead to the observed outcomes. Interview data were analyzed using qualitative methods. Key informant interviews revealed three emergent themes: 1. accessibility and availability of healthcare, 2. the provision of a robust EMS system, and 3. coordination of county-funded services targeting vulnerable populations. The positive deviance framework provides a foundation for the identification of community factors or practices with the potential to create a 'culture of health' in communities at the greatest risk for adverse health outcomes. Our findings suggest that healthcare supported by the coordination of non-emergency transportation and health and social services across numerous stakeholders may have contributed to observed outcomes in the study counties.

Positive Outliers Among African American Women and the Factors Associated with Long-Term Physical Activity Maintenance

Studying positive outliers, individuals who have achieved success with long-term (> 6-month) physical activity (PA) engagement, may be an important approach for understanding strategies for improving leisure-time PA maintenance among African American (AA) women. This cross-sectional, mixed-methods study (1) examined the personal characteristics, PA patterns, and behavioral practices of positive outliers among AA women and (2) compared characteristics of those who maintain PA at recommended levels (HIGH, ≥ 150 min/week > 6 months) with those who maintain low PA volumes (LOW, < 150 min/week > 6 months). A large sample of positive outliers completed this study (n = 290), and most became physically active on their own (76.2%). These AA women were committed to maintaining an active lifestyle, accumulated 249.7 ± 105.8 min of PA/week, and engaged in a variety of activities. Their behavioral practices included scheduling PA during the week (85.9%), goal-setting (82.4%), engaging in PA with others (55.9%), self-monitoring (78.3%), and having a backup plan for missed sessions (54.8%). HIGH maintainers (84.9%) made up most of the sample, and these women were characteristically similar to LOW maintainers with few differences. HIGH maintainers have been active longer, achieved higher commitment scores, and engaged in PA at a higher frequency, duration, and intensity, resulting in higher weekly PA volume compared to LOW maintainers (273.8 ± 96.1 vs. 114.4 ± 24.3 min per week, p ≤ 0.001). Our findings identify factors that may be important for successful PA maintenance among AA women and may help to inform the development of effective behavioral interventions to promote sustained, long-term PA engagement in this population.

Factors influencing patient uptake of an exercise referral scheme: a qualitative study

Exercise referral schemes aim to increase physical activity amongst inactive individuals with or at risk of long-term health conditions. Yet many patients referred to these schemes (by health professionals) fail to take up the exercise opportunities on offer. Understanding factors influencing uptake to exercise referral schemes may help improve future attendance. Using the Socio-Ecological Model as a framework, this qualitative study aimed to explore factors influencing uptake to an exercise referral scheme based in the North West of England. Semi-structured interviews were conducted with referred patients (n = 38) about their reasons for referral, interactions with referring health professionals, events following referral and ideas to improve future uptake. Data were analysed thematically and mapped onto the constructs of the Socio-Ecological Model. Factors reported to influence uptake included intrapersonal (past PA experiences, motivation, competing priorities), interpersonal (scheme explanations, support) and organizational influences (scheme promotion, communication between service, cost). Whilst several intrapersonal-level factors influenced patient decisions to uptake the exercise referral scheme, modifiable interpersonal and organizational factors were identified as potential targets for intervention. Recommendations are made for improving awareness of exercise referral schemes and for enhancing communication between referring practitioners, patients and referral scheme staff.

Experiences of Self-Monitoring in Self-Directed Weight Loss and Weight Loss Maintenance: Systematic Review of Qualitative Studies

The experience and role of self-monitoring in self-directed weight loss attempts may be distinctly different from that within formal interventions, and has yet to be fully explored. We systematically reviewed qualitative studies to examine experiences of self-monitoring as an aid to self-directed weight loss. Thematic synthesis was used to construct descriptive and analytical themes from the available data. In all, 22 studies (681 participants) were included, in which the uses of self-monitoring ranged from an aid to increase adherence to a tool for facilitating analysis. Self-monitoring also influenced and was influenced by self-perception and emotions. Feelings of shame were linked with abandonment of efforts. Findings highlight the centrality of interpretation of self-monitored data, the implications this interpretation has on sense of self, and the impact of broader discourses. Explicitly framing self-monitoring as a positive tool with which to aid analysis may encourage helpful use of this technique.

Living a successful weight loss after severe obesity

PURPOSE

Losing weight and keeping it off for the long term is difficult. Weight regain is common. Experiences of successful non-surgical weight loss after severe obesity are largely unexplored. We know little about long-term weight loss processes, and how health care services can be of help to those living them.

METHODS

Drawing on in-depth interviews of 8 women and 2 men, the aim of this phenomenological study is to describe the experiences of adults who have been severely obese, who have lost weight and maintained weight loss for the long term (>5 years).

RESULTS

Findings show that after severe obesity, sustained weight loss has no endpoint, yet is always easy to end. Keeping weight off means committing to oneself, continuing profound changes and cultivating sensitivity towards oneself and others. A phenomenological understanding of sustained weight loss can inform professionals who deal with health issues and challenges occurring in the life of people leaving severe obesity.

A Next Generation Assets-Based Public Health Intervention Development Model: The Public as Innovators

In the public health field, the design of interventions has long been considered to be the province of public health experts. In this paper, I explore an important complement to the traditional model: the design, prototyping, and implementation of innovative public health interventions by the public (users) themselves. These user interventions can then be incorporated by public health experts, who in turn design, support, and implement improvements and diffusion strategies as appropriate for the broader community. The context and support for this proposed new public health intervention development model builds upon user innovation theory, which has only recently begun to be applied to research and practice in medicine and provides a completely novel approach in the field of public health. User innovation is an assets-based model in which end users of a product, process, or service are the locus of innovation and often more likely than producers to develop the first prototypes of new approaches to problems facing them. This occurs because users often possess essential context-specific information about their needs paired with the motivation that comes from directly benefiting from any solutions they create. Product producers in a wide range of fields have, in turn, learned to profit from the strengths of these user innovators by supporting their grass-roots, leading-edge designs and field experiments in various ways. I explore the promise of integrating user-designed and prototyped health interventions into a new assets-based public health intervention development model. In this exploration, a wide range of lead user methods and positive deviance studies provide examples for identification of user innovation in populations, community platforms, and healthcare programs. I also propose action-oriented and assets-based next steps for user-centered public health research and practice to implement this new model. This approach will enable us to call upon the strengths of the communities we serve as we develop new methods and approaches to more efficiently and effectively intervene on the varied complex health problems they face.

Experiences of Reframing during Self-Directed Weight Loss and Weight Loss Maintenance: Systematic Review of Qualitative Studies

Background

Reframing means changing the way that a person thinks or feels about a weight loss attempt or weight loss maintenance to enhance its experience or facilitate its success. Although participants have described this, it has not been explored in the academic literature. Here, we set out to systematically review qualitative studies to examine the ways in which people use and experience reframing in self‐directed weight loss.

Methods

Seven electronic databases were searched to January 2017 for qualitative studies of adults with overweight or obesity attempting to lose weight or maintain weight loss through self‐directed behavior change. Studies must have contained some information pertinent to reframing. Thematic synthesis was used to identify descriptive and analytical themes from the available data.

Results

We included 23 studies, representing 723 participants. No study focused specifically on reframing. Most studies involved people who had tried to lose weight previously. In the most common examples of reframing, participants spoke of construing previous weight management attempts as “dieting”, whereas in current attempts they used reframing to move away from this concept. Participants spoke of finding reframing helpful because it removed the sense of depriving themselves and instead allowed them to construe the food choices as healthful. Likewise, the language of dieting created a sense of temporary effort, while construing this as a way of life allowed continuation of conscious control over energy balance without the feeling of undue effort. In some cases, these changes were bolstered by change in self‐identity.

Conclusions

Some people construe deliberate weight loss as a form of deprivation and cognitively reframe to avoid the negative emotions this creates and to prevent relapse. Reframing the dietary regimen as about healthy eating and a new way of life made weight control seem less burdensome for these participants and they felt able to maintain their efforts.

A qualitative analysis of the role of emotions in different patterns of long-term weight loss

OBJECTIVE

To explore participant perspectives of the impact emotions have on weight loss.

DESIGN

A qualitative design gathered data through semi-structured interviews with participants in a weight management programme. The interview addresses the following research questions: (1) how do individuals working to lose weight perceive the impact emotions have on their long-term success, and (2) what strategies do more or less successful participants use to regulate their emotions? Researchers conducted and transcribed the interviews then completed content analysis to create and organise themes.

RESULTS

Two broad themes emerged through the interviews with 21 participants: emotional impact and emotional regulation. Further subthemes captured emotions blocking action toward goals, strategies for regulating emotions (e.g. exercise, food) and the need for new strategies to regulate emotions. Themes were also split in to three groups based on weight outcomes: regainer, moderate success (3-6% loss) and large success (>7% loss). More successful participants, compared to regainers, shared being aware of the impact of their emotions and made efforts to develop healthy regulation strategies.

CONCLUSIONS

Emotional awareness and regulation play an important role in participant's weight management experience. Taking time to build emotional awareness and strategies to manage emotions is important to participants in weight management.

Identification and Characterization of Families That Are Positively Deviant for Childhood Obesity in a Latino Population: A Case-Control Study

BACKGROUND

Childhood obesity is a complex public health challenge that requires innovative, sustainable solutions. Positive deviance, inspired by the science of complexity, is an approach that examines what allows certain individuals to succeed despite being predicted to fail. This study is aimed at identifying and defining positive deviants for early childhood obesity.

METHODS

This case-control study used medical record data to identify Latino children aged 2-5 and classify them using their longitudinal weight change. Parents of children with trajectories toward a healthy weight from an obese weight (cases) and parents of children with stable obese weight trajectories over time (controls) were recruited. Mixed-methods analyses were used including a semistructured interview and quantitative surveys evaluating diet, physical activity, sleep, feeding practices, and self-efficacy. Qualitative description was applied to the qualitative data; quantitative data were analyzed using descriptive statistics and logistic regression modeling.

RESULTS

Of eligible Latino children identified from the overall data set (n=1,621), 257 (16%) had trajectories toward a healthy weight, and among these, 21 positively deviant cases completed the study with 23 matched controls. Positive deviant families were characterized by lower education, higher self-efficacy, and a more Mexican cultural orientation. Findings suggest that effective engagement of other caregivers and creating healthy food environments were important determinants of healthy weight outcomes.

CONCLUSIONS

Positive deviants (cases) were distinct from controls in several parenting strategies such as creating healthy food environments and engaging caregivers. They had higher self-efficacy despite lower education. There were fewer differences in diet and physical activity than expected.

Using appreciative inquiry methodology to develop a weight management program for obese children in New Zealand

OBJECTIVES

Paediatric obesity predicts adult obesity, and alarming new data in New Zealand reveals that obesity among the young continues to rise. In this study, we used a novel solution-focused paradigm, or appreciative inquiry perspective, to explore the factors that influence not just obese but non-obese states (that is, healthy weight as well as obesity), in Pacific adolescents (aged 13-17) living in socioeconomically deprived neighbourhoods.

METHODS

Sixty-eight parents and adolescents from 30 families were recruited and interviewed, resulting in 15 obese and 15 healthy weight adolescents participating in the study.

RESULTS

Our findings showed that, despite living in low socioeconomic circumstances, parents were able to alter their micro-environments to prevent obesity in their children. Parents with healthy weight adolescents had food rules in the home and monitored their children's eating and television viewing time.

CONCLUSIONS

An appreciative inquiry approach to obesity research can uncover resiliency factors within families that can be applied to obesity prevention and treatment programs. Implications for public health: Appreciative inquiry methodology is a promising alternative qualitative research strategy for developing health interventions for low-income ethnic minority communities.

Permissive flexibility in successful lifelong weight management: A qualitative study among Finnish men and women

Maintaining normal weight in the current obesogenic environment is a challenge. However, some people can do it. More insight is needed to understand how and why some people succeed in long-term weight maintenance. This study uses a rare, qualitative approach by describing the thoughts of successful weight management and self-perceived requirements for success in weight maintenance. We interviewed 39 individuals who have maintained normal weight for their entire lives (men and women). The content analysis revealed a main theme: flexible, permissive and conscious self-regulation, which was divided into two subthemes (eating-related behavior and weight-related behavior). The informants reported certain routines that supported their weight management: regular eating, sufficient meal sizes, eating in response to hunger, healthy and vegetable-rich diet along with moderate feasting and flexible eating restriction. Flexibility in routines allowed freedom in their eating behavior. In addition, informants regarded themselves as physically active, and they enjoyed regular exercise. Regular weighing was generally considered unnecessary. Normal weight was regarded as a valuable and worthwhile issue, and most of the informants worked to keep their weight stable. Although the perceived workload varied among informants, the weight management strategies were similar. It was crucial to be conscious of the balance between eating and energy consumption. Further, flexibility characterized their behavior and was the basis of successful weight management. Women were more aware of weight control practices and knowledge than men, but otherwise, women and men reported similar weight management methods and attitudes. In conclusion, the interviewees who have maintained the normal weight had created a personal weight-management support environment where weight management was a lifestyle.

Cognitive and behavioural strategies for self-directed weight loss: systematic review of qualitative studies

AIM

We conducted a systematic review of qualitative studies to examine the strategies people employ as part of self-directed weight loss attempts, map these to an existing behaviour change taxonomy and explore attitudes and beliefs surrounding these strategies.

METHODS

Seven electronic databases were searched in December 2015 for qualitative studies in overweight and obese adults attempting to lose weight through behaviour change. We were interested in strategies used by participants in self-directed efforts to lose weight. Two reviewers extracted data from included studies. Thematic and narrative synthesis techniques were used.

RESULTS

Thirty one studies, representing over 1,000 participants, were included. Quality of the included studies was mixed. The most commonly covered types of strategies were restrictions, self-monitoring, scheduling, professional support and weight management aids. With the exception of scheduling, for which participant experiences were predominantly positive, participants' attitudes and beliefs surrounding implementation of these groups of strategies were mixed. Two new groups of strategies were added to the existing taxonomy: reframing and self-experimentation.

CONCLUSIONS

This review demonstrates that at present, interventions targeting individuals engaged in self-management of weight do not necessarily reflect lived experiences of self-directed weight loss.

The Effect of Adherence to Dietary Tracking on Weight Loss: Using HLM to Model Weight Loss over Time

The role of dietary tracking on weight loss remains unexplored despite being part of multiple diabetes and weight management programs. Hence, participants of the Diabetes Prevention and Management (DPM) program (12 months, 22 sessions) tracked their food intake for the duration of the study. A scatterplot of days tracked versus total weight loss revealed a nonlinear relationship. Hence, the number of possible tracking days was divided to create the 3 groups of participants: rare trackers (<33% total days tracked), inconsistent trackers (33-66% total days tracked), and consistent trackers (>66% total days tracked). After controlling for initial body mass index, hemoglobin A_1c, and gender, only consistent trackers had significant weight loss (-9.99 pounds), following a linear relationship with consistent loss throughout the year. In addition, the weight loss trend for the rare and inconsistent trackers followed a nonlinear path, with the holidays slowing weight loss and the onset of summer increasing weight loss. These results show the importance of frequent dietary tracking for consistent long-term weight loss success.

A mixed-methods investigation of psychological factors relevant to weight maintenance

This study investigated perceptions of and engagement with the concepts of planning and problem-solving, within a weight management sample. A total of 53 participants (62% female, 20–74 years old) completed a semi-structured interview and quantitative measures after a 16-week weight maintenance period. Preliminary weight maintainers (who had maintained losses of, at least 10% of their original weight) were compared with heavier-than-baseline participants (who had re-gained more weight than was originally lost). The maintainers exhibited stronger problem-solving skills ( p < .05). The heavier-than-baseline participants tended towards non-rational problem-solving styles. Qualitatively, the maintainers described more planning events and were more accepting of mistakes than the heavier-than-baseline participants. Implications are discussed.

A Pilot Study of Parent Mentors for Early Childhood Obesity

Objective. To assess the feasibility of a parent mentor model of intervention for early childhood obesity using positive deviance-based methods to inform the intervention. Methods. In this pilot, randomized clinical trial, parent-child dyads (age: 2-5) with children whose body mass index (BMI) was ≥95th percentile were randomized to parent mentor intervention or community health worker comparison. The child's height and weight were measured at baseline, after the six-month intervention, and six months after the intervention. Feasibility outcomes were recruitment, participation, and retention. The primary clinical outcome was BMI z-score change. Results. Sixty participants were enrolled, and forty-eight completed the six-month intervention. At baseline, the BMI z-score in the parent mentor group was 2.63 (SD = 0.65) and in the community health worker group it was 2.61 (SD = 0.89). For change in BMI z-score over time, there was no difference by randomization group at the end of the intervention: -0.02 (95% CI: -0.26, 0.22). At the end of the intervention, the BMI z-score for the parent mentor group was 2.48 (SD = 0.58) and for the community health worker group it was 2.45 (SD = 0.91), both reduced from baseline, p < 0.001. Conclusion. The model of a parent mentor clinical trial is feasible, and both randomized groups experienced small, sustained effects on adiposity in an obese, Hispanic population.

Positive deviance as a novel tool in malaria control and elimination: methodology, qualitative assessment and future potential

BACKGROUND

Positive deviance (PD) is an asset-based, community-driven approach to behaviour change that has successfully been applied to address many health and social problems. It is yet to have been assessed for malaria control but may represent a promising tool for malaria elimination given its suitability in targeting small and remote population groups, apparent sustainability and ability to instil a high amount of community mobilisation. Here, the PD methodology as applied to malaria is explained, with focus upon and qualitative assessment of a proof of concept study in Cambodia.

METHODS

Three villages in Battambang, northwestern Cambodia were selected for the intervention, with an estimated population of 5036 including both residents and migrant workers. In August 2010, field teams conducted a 1 week PD process to sensitise and mobilise the community, establish normative behaviours in relation to malaria control and prevention, identify positive deviant behaviours from within the community, and identify PD volunteers. Until March 2011, PD volunteers were supported by field teams via monthly meetings to conduct activities in their respective communities to increase practice of PD behaviours. In February 2012, 1 year following the end of external support, evaluative interviews were conducted with community members to qualitatively assess community acceptance and interpretation of the PD intervention, perceived behaviour changes, and perceived positive outcomes.

RESULTS

Qualitative data from focus group discussions and in-depth interviews showed that the PD approach was well-accepted into the communities and created a strong sense of community empowerment. Positive behaviour change was linked to the PD intervention, including greater usage of nets by forest goers, and use of public health facilities for malaria diagnosis and treatment. One year following the end of external assistance, PD volunteers were still conducting activities in their respective communities.

CONCLUSIONS

PD offers a promising tool in malaria control and elimination settings. Work is ongoing to quantitatively measure impact of PD on behaviours and malaria transmission and once gathered, national malaria control programmes should be encouraged to look at including PD as part of their national strategies. Feasibility of scale-up, cost-effectiveness, and applicability to other settings and diseases is also currently being explored.

Engaging children in the development of obesity interventions: Exploring outcomes that matter most among obesity positive outliers

OBJECTIVE

To explore outcomes and measures of success that matter most to 'positive outlier' children who improved their body mass index (BMI) despite living in obesogenic neighborhoods.

METHODS

We collected residential address and longitudinal height/weight data from electronic health records of 22,657 children ages 6-12 years in Massachusetts. We defined obesity "hotspots" as zip codes where >15% of children had a BMI ≥95th percentile. Using linear mixed effects models, we generated a BMI z-score slope for each child with a history of obesity. We recruited 10-12 year-olds with negative slopes living in hotspots for focus groups. We analyzed group transcripts and discussed emerging themes in iterative meetings using an immersion/crystallization approach.

RESULTS

We reached thematic saturation after 4 focus groups with 21 children. Children identified bullying and negative peer comparisons related to physical appearance, clothing size, and athletic ability as motivating them to achieve a healthier weight, and they measured success as improvement in these domains. Positive relationships with friends and family facilitated both behavior change initiation and maintenance.

CONCLUSIONS

The perspectives of positive outlier children can provide insight into children's motivations leading to successful obesity management.

PRACTICE IMPLICATIONS

Child/family engagement should guide the development of patient-centered obesity interventions.

Food Insecurity and Body Mass Index: A Longitudinal Mixed Methods Study, Chelsea, Massachusetts, 2009-2013

Introduction

Cross-sectional studies show an association between food insecurity and higher body mass index (BMI), but this finding has not been evaluated longitudinally. Patient perspectives on food choice in resource-constrained environments are not well understood. The objective of this study was to evaluate the longitudinal association between food insecurity and BMI.

Methods

This mixed methods study used both a retrospective matched cohort and focus groups. For the quantitative analysis, all patients in a community health center who reported food insecurity from October 2009 through March 2010 (n = 457) were followed through August 2013 and compared with controls matched by age, sex, and race/ethnicity (n = 1,974). We evaluated the association between food insecurity and change in BMI by using linear, mixed effects longitudinal models. The qualitative analysis included patients with food insecurity, stratified by BMI. Qualitative data were analyzed by using open coding and grounded theory.

Results

The mean age of participants was 51 years; 61% were women, and 73% were Hispanic. Baseline BMI was similar in food insecure participants and matched controls. After adjustment in longitudinal analyses, food insecurity was associated with greater increase in BMI (0.15 kg/m² per year more than controls, P < .001). Themes identified in 4 focus groups included attitudes and knowledge about food, food access, and food practices. Participants with BMI of 30 kg/m² or less highlighted skills such as budgeting and portion control.

Conclusion

Food insecurity is associated with increase in BMI. The skills of food insecure participants who were not obese, such as portion control and budgeting, may be useful in weight management interventions for vulnerable patients.

Lessons learned about primary weight maintenance and secondary weight maintenance: results from a qualitative study

BACKGROUND

Obesity is now a worldwide problem and Ireland is no exception with approximately two thirds of the adult population now overweight or obese. A recent report has found that 53% of Irish adults aged 50 years and over are classified as centrally obese and at substantially increased risk of metabolic complications. While most studies investigating weight maintenance have been conducted on those who have managed to lose weight and/or achieved weight loss maintenance (secondary weight maintainers), few studies have been undertaken to understand the attitudes, behaviours, motivations and strategies of those who maintain their weight within normal weight ranges over their lifetime, so called primary weight maintainers. This study aims to explore this issue through qualitative exploration of primary weight maintainers in an Irish University.

METHODS

Seven focus groups were conducted (including three single interviews) with 17 participants in total across three different groups, 1) primary weight maintainers, 2) secondary weight maintainers, and 3) those unable to sustain or achieve weight loss. The interviews were transcribed and thematic analysis was applied to interpret the findings.

RESULTS

After analyzing the participant's interviews, planning and organization or lack of, emerged as themes across the three groups in varying degrees. Strategizing, perseverance and willpower were seen as integral to weight maintenance and weight loss in groups one and two, these were lacking in group three. Prioritizing exercise and perseverance in maintaining a high level of activity was evident in groups one and two and was lacking in group three. Motivational influences were equal across the groups however, group three found it difficult to turn this into action. Group one had behavioural control of calorie intake maintaining a balance between week and weekend eating. Group three found it difficult to control calorie intake and portion size. Self-image differed across the three groups with cognitive dissonance evident amongst those in group three.

CONCLUSIONS

This study showed that there are many factors that influence primary weight maintenance. Considering that we live in a society that is predominantly sedentary, predominantly overweight and with poor food choice options facing us every day, fighting our way through to ensure healthy weight maintenance requires active, conscious efforts. The factors identified in this study which are important in healthy weight maintenance are all potentially modifiable with life-coach, nutrition, exercise and cognitive interventions particularly if peer support and a whole family approach are incorporated.

A qualitative study of successful adolescent and young adult weight losers: implications for weight control intervention

BACKGROUND

Our study aims to provide an in-depth analysis of behavioral strategies, psychological factors, and social contributors to adolescent weight loss and weight loss maintenance among participants in the Adolescent Weight Control Registry (AWCR).

METHODS

Qualitative analyses were conducted using semi-structured interview data from 40 participants from the AWCR who successfully lost ≥10 lbs and maintained their weight loss for at least one year.

RESULTS

In contrast to existing literature, our findings suggest that primary motivating factors for adolescent weight loss may be intrinsic (e.g., desire for better health, desire to improve self-worth) rather than extrinsic. In addition, life transitions (e.g., transition to high school) were identified as substantial motivators for weight-related behavior change. Peer and parental encouragement and instrumental support were widely endorsed as central to success. The most commonly endorsed weight loss maintenance strategies included attending to dietary intake and physical activity levels, and making self-corrections when necessary.

CONCLUSIONS

Results from this study highlight considerations for future adolescent weight control treatment development.

Behaviours of overweight and obese women during pregnancy who achieve and exceed recommended gestational weight gain

BACKGROUND

Excessive gestational weight gain (GWG) is associated with increased risk of pregnancy-related complications, postpartum weight retention, and long-term obesity. Little is known about the behavioural habits of pregnant women who achieve and exceed recommended GWG.

METHOD

In 2011, qualitative interviews were conducted in Pennsylvania with postpartum women who were overweight or obese prior to pregnancy to ascertain their behaviours and attitudes regarding dietary habits, physical activity, and self-monitoring during pregnancy. Thematic analysis identified the habits of women who achieved and exceeded recommended GWG guidelines.

RESULTS

Of the 29 women interviewed, 11 had appropriate GWG and 18 had excessive GWG. Women achieving appropriate GWG reported modest increases in caloric intake if at all, with deliberate meal and snack planning, while women with excessive GWG described "eating-for-two." Nearly all women with excessive GWG reported exercising less during pregnancy (or remaining sedentary), while women with appropriate GWG largely increased or maintained pre-pregnancy physical activity levels. About half of the sample reported self-monitoring weight gain during pregnancy, but women achieving recommended GWG tied their weight monitoring with GWG goals consistent with recommended guidelines.

CONCLUSIONS

Women who achieved appropriate GWG reported deliberate dietary habits and physical activity planning, with appropriate GWG goals during pregnancy. Women exceeding recommended GWG described "eating-for-two," were sedentary, and either had no goals for GWG or intended to gain more weight than recommended.

What does high and low have to do with it? Performance classification to identify health system factors associated with effective prevention of mother-to-child transmission of HIV delivery in Mozambique

Introduction

Efforts to implement and take to scale highly efficacious, low-cost interventions to prevent mother-to-child HIV transmission (pMTCT) have been a cornerstone of reproductive health services in sub-Saharan Africa for over a decade. Yet efforts to increase access and utilization of these services remain far from optimal. This study developed and applied an approach to systematically classify pMTCT performance to identify modifiable health system factors associated with pMTCT performance which may be replicated in other pMTCT systems.

Methods

Facility-level performance measures were collected at 30 sites over a 12-month period and reviewed for consistency. Five combinations of three indicators (1. HIV testing; 2. CD4 testing; 3. antiretroviral prophylaxis and combined antiretroviral therapy initiation) were compared including a composite of all three, a combination of 1. and 3., and each individually. Approaches were visually assessed to describe facility performance, focusing on rank order consistency across high, medium and low categories. Modifiable and non-modifiable factors were ascertained at each site and ranking process was reviewed to estimate association with facility performance through unadjusted Chi-square tests and logistic regression. After describing factors associated with high versus low performing pMTCT clinics, the effect of inclusion of the 10 middle performers was assessed.

Results

The indicator most consistently associated with the reference composite indicator (HIV testing, antiretroviral prophylaxis and combined antiretroviral therapy) was the single measure of antiretroviral prophylaxis and combined antiretroviral therapy. Lower performing pMTCT clinics ranked consistently low across measurement strategies; high and middle performing clinics demonstrated more variability. Association between clinic characteristics and high pMTCT performance varied markedly across ranking strategies. Using the reference composite indicator, larger catchment area, higher number of institutional deliveries, onsite CD4 point-of-care capacity, and higher numbers of nurses and doctors were associated with high clinic performance while clinic location, NGO support, women's support group, community linkages patient-tracking systems and stock-outs were not associated with high performance.

Conclusions

Classifying high and low performance provided consistent results across ranking measures, though granularity was improved by aggregating middle performers with either high or low performers. Human resources, catchment size and utilization were positively associated with effective pMTCT service delivery.

Exploring innovative approaches and patient-centered outcomes from positive outliers in childhood obesity

OBJECTIVE

New approaches for obesity prevention and management can be gleaned from positive outliers-that is, individuals who have succeeded in changing health behaviors and reducing their body mass index (BMI) in the context of adverse built and social environments. We explored perspectives and strategies of parents of positive outlier children living in high-risk neighborhoods.

METHODS

We collected up to 5 years of height/weight data from the electronic health records of 22,443 Massachusetts children, ages 6 to 12 years, seen for well-child care. We identified children with any history of BMI in the 95th percentile or higher (n = 4007) and generated a BMI z-score slope for each child using a linear mixed effects model. We recruited parents for focus groups from the subsample of children with negative slopes who also lived in zip codes where >15% of children were obese. We analyzed focus group transcripts using an immersion/crystallization approach.

RESULTS

We reached thematic saturation after 5 focus groups with 41 parents. Commonly cited outcomes that mattered most to parents and motivated change were child inactivity, above-average clothing sizes, exercise intolerance, and negative peer interactions; few reported BMI as a motivator. Convergent strategies among positive outlier families were family-level changes, parent modeling, consistency, household rules/limits, and creativity in overcoming resistance. Parents voiced preferences for obesity interventions that include tailored education and support that extend outside clinical settings and are delivered by both health care professionals and successful peers.

CONCLUSIONS

Successful strategies learned from positive outlier families can be generalized and tested to accelerate progress in reducing childhood obesity.

Transformative Lifestyle Change: key to sustainable weight loss among women in a post-partum diet and exercise intervention

The increase in overweight and obesity among women is a growing concern, and reproduction is associated with persistent weight gain. We have shown that dietary behavioural modification treatment, with or without exercise, results in weight loss and maintenance of weight loss. The aim of this study was to provide an explanatory model of how overweight and obese women achieve weight loss during, and after, participating in a post-partum diet and/or exercise intervention. Using Grounded Theory, we performed and analysed 29 interviews with 21 women in a 12-week Swedish post-partum lifestyle intervention with a 9-month follow-up. Interviews were made after the intervention and at the 9-month follow-up. To overcome initial barriers to weight loss, the women needed a 'Catalytic Interaction' (CI) from the care provider. It depended on individualised, concrete, specific and useful information, and an emotional bond through joint commitment, trust and accountability. Weight loss was underpinned by gradual introduction of conventional health behaviours. However, the implementation depended on the experience of the core category process 'Transformative Lifestyle Change' (TLC). This developed through a transformative process of reciprocal changes in cognitions, emotions, body, environment, behaviours and perceived self. Women accomplishing the stages of the TLC process were successful in weight loss, in contrast to those who did not. The TLC process, dependent on initiation through CI, led to implementation and integration of recognised health behaviours, resulting in sustainable weight loss. The TLC model, including the CI construct and definition of barriers, facilitators and strategies provides an explanatory model of this process.

Health promotion and cardiovascular disease prevention in sub-Saharan Africa

Recent population studies demonstrate an increasing burden of cardiovascular disease (CVD) and related risk factors in sub-Saharan Africa (SSA). The mitigation or reversal of this trend calls for effective health promotion and preventive interventions. In this article, we review the core principles, challenges, and progress in promoting cardiovascular health with special emphasis on interventions to address physical inactivity, poor diet, tobacco use, and adverse cardiometabolic risk factor trends in SSA. We focus on the five essential strategies of the Ottawa Charter for Health Promotion. Successes highlighted include community-based interventions in Ghana, Nigeria, South Africa, and Mauritius and school-based programs in Kenya, Namibia, and Swaziland. We address the major challenge of developing integrated interventions, and showcase partnerships opportunities. We conclude by calling for intersectoral partnerships for effective and sustainable intervention strategies to advance cardiovascular health promotion and close the implementation gap in accordance with the 2009 Nairobi Call to Action on Health Promotion.

Monitoring hand hygiene: meaningless, harmful, or helpful?

Whereas monitoring adherence to hand hygiene (HH) guidelines is standard practice in most acute care facilities, practice improvement has been slow. In hospitals primarily concerned with reputation, incentives to report high HH rates may create negative consequences. Practice change will require increased staff engagement and more sustainable methods to monitor HH and provide feedback.

Empowerment and bariatric surgery: negotiations of credibility and control

Today obesity is understood as a chronic illness. Programs developed to deal with obesity often build on an explicit aim to "empower" patients to take increased responsibility for their health, in line with contemporary neoliberal discourses. There is little empirically based knowledge about this so-called empowering process. In this article we focus on how an empowering program for patients diagnosed as morbidly obese worked on individuals' identity. The program encompassed a course in lifestyle change, bariatric surgery, and aftercare. We conducted qualitative interviews with 9 individuals at different stages of their treatment process and applied discourse analysis to interpret their constructions and negotiations as they progressed through the program. We found that dimensions of control and credibility framed the respondents' identity work. Based on the findings we suggest that contemporary discourses of empowerment as practice might leave the participants "trapped" within the ambivalence of freedom and control.

Examination of weight control practices in a non-clinical sample of college women

The current study examined healthy weight control practices among a sample of college women enrolled at an urban university (N=715; age=19.87±1.16; 77.2% Caucasian; 13.4% African American, 7.2% Asian, 2.2% other races). Participants completed measures as part of an on-line study about health habits, behaviors, and attitudes. Items from the Three Factor Eating Questionnaire were selected and evaluated with exploratory factor analysis to create a healthy weight control practices scale. Results revealed that college women, regardless of weight status, used a comparable number (four of eight) of practices. Examination of racial differences between Caucasian and African American women revealed that normal weight African American women used significantly fewer strategies than Caucasian women. Of note, greater use of healthy weight control practices was associated with higher cognitive restraint, drive for thinness, minutes of physical activity, and more frequent use of compensatory strategies. Higher scores on measures of binge and disinhibited eating, body dissatisfaction, negative affect, and depressive symptoms were associated with greater use of healthy weight control practices by underweight/normal weight but not by overweight/obese college women. Results suggest that among a sample of college females, a combination of healthy and potentially unhealthy weight control practices occurs. Implications of the findings suggest the need for effective weight management and eating disorder prevention programs for this critical developmental life stage. Such programs should be designed to help students learn how to appropriately use healthy weight control practices, as motivations for use may vary by weight status.

The influence of perceptions of community norms on current contraceptive use among men and women in Ethiopia and Kenya

The paper uses data from Ethiopia and Kenya to examine how perceptions of community norms differentially shape contraceptive use among men and women. Women whose current number of sons is lower than their perception of the community ideal had lower odds of reporting contraceptive use, while women whose own personal ideal number of sons is lower than the community ideal had greater odds of reporting contraceptive use. Men and women in Kenya were influenced more by their perception of their social network's approval of family planning than by their own approval of family planning. Results highlight the importance of place, conceptualized as the place-specific perceptions of fertility ideals, when conducting reproductive health research. Identification of people who use contraception in the face of pervasive pronatalist community norms presents a point for future intervention.

Staying safe from hepatitis C: engaging with multiple priorities

Hepatitis C virus (HCV) infection is a significant global public health problem. In developed countries, 90% of new infections occur among people who inject drugs (PWID), with seroprevalence increasing rapidly among new injectors. Staying Safe is an international, qualitative, social research project, the aim of which is to draw on the experiences of long-term PWID to inform a new generation of HCV prevention strategies. The Sydney project team employed life history interviews and computer-generated timelines to elicit detailed data about unexposed participants' (n =13) injecting practices, circumstances, and social networks over time. The motivations and strategies that enabled participants to avoid risk situations, and which might have helped them to "stay safe," appeared not to be directly related to harm-reduction messages or HCV avoidance. These included the ability and inclination to maintain social and structural resources, to mainly inject alone, to manage withdrawal, and to avoid injecting-related scars. These findings point to the multiple priorities that facilitate viral avoidance among PWID and the potential efficacy of nonspecific HCV harm-reduction interventions for HCV prevention.

Efficacy of a weight-loss website based on positive deviance. A randomized trial

BACKGROUND

Web-based interventions for weight control could promote more-widespread dissemination of weight-loss opportunities; however, they remain limited in effectiveness. Incorporating weight-control practices used by individuals with long-term weight-loss success ("positive deviants") may improve the efficacy of web-based weight control interventions.

PURPOSE

To evaluate the efficacy of AchieveTogether, a web-based weight-loss intervention for adults based on user-generated weight-loss strategies from successful weight losers.

DESIGN

In 2009-2010, participants were randomized to either a 12-week web-based intervention, AchieveTogether, or a wait-list control condition.

SETTING/PARTICIPANTS

100 overweight or obese adults participated in the study.

INTERVENTION

AchieveTogether was designed to help individuals implement weight control practices used by others who successfully lost and maintained weight.

MAIN OUTCOME MEASURES

The primary outcome was change in weight. Secondary outcomes included blood pressure, daily caloric intake, quality of life, and use of weight control practices. ANCOVA, with adjustment for baseline values on outcome measures, was used to assess differences between groups in primary and secondary outcomes. Statistical analyses were conducted in 2010-2011.

RESULTS

Most participants were women (69.7%) and white (90.8%), with a mean age of 50.3 years and baseline BMI of 33.2; 88% completed post-program assessments. Mean weight loss among intervention participants was -1.4 kg (95% CI= -2.2, -0.5), compared with a mean weight gain of 0.6 kg (95% CI= -0.3, 1.4) in control participants (p<0.01).

CONCLUSIONS

User-generated weight-loss practices from "positive deviants" could promote weight control in web-based interventions; however, further research is needed to improve program efficacy.

TRIAL REGISTRATION

This study is registered at ClinicalTrials.govNCT00709501.

Practices associated with weight loss versus weight-loss maintenance results of a national survey

BACKGROUND

Few studies have examined the weight-control practices that promote weight loss and weight-loss maintenance in the same sample.

PURPOSE

To examine whether the weight control practices associated with weight loss differ from those associated with weight-loss maintenance.

METHODS

Cross-sectional survey of a random sample of 1165 U.S. adults. The adjusted associations of the use of 36 weight-control practices in the past week with success in weight loss (≥10% lost in the past year) and success in weight-loss maintenance (≥10% lost and maintained for ≥1 year) were examined.

RESULTS

Of the 36 practices, only 8 (22%) were associated with both weight loss and weight-loss maintenance. Overall, there was poor agreement (kappa=0.22) between the practices associated with weight loss and/or weight-loss maintenance. For example, those who reported more often following a consistent exercise routine or eating plenty of low-fat sources of protein were 1.97 (95% CI=1.33, 2.94) and 1.76 (95% CI=1.25, 2.50) times more likely, respectively, to report weight-loss maintenance but not weight loss. Alternatively, those who reported more often doing different kinds of exercises or planning meals ahead of time were 2.56 (95% CI=1.44, 4.55) and 1.68 (95% CI=1.03, 2.74) times more likely, respectively, to report weight loss but not weight-loss maintenance.

CONCLUSIONS

Successful weight loss and weight-loss maintenance may require two different sets of practices. Designing interventions with this premise may inform the design of more effective weight-loss maintenance interventions.