Effect of Integrated Behavioral Weight Loss Treatment and Problem-Solving Therapy on Body Mass Index and Depressive Symptoms Among Patients With Obesity and Depression: The RAINBOW Randomized Clinical Trial

Integrated Behavioral Interventions for Adults with Comorbid Obesity and Depression: a Systematic Review

PURPOSE OF REVIEW

To synthesize evidence from randomized controlled trials on the effects of integrated behavioral interventions for comorbid obesity and depression in adults.

RECENT FINDINGS

Seven trials (n = 33 to 409) were included. The quality of evidence was mixed. In 2 trials, integrated interventions led to greater improvements in both obesity and depression over 12 months, compared with usual care. Of 4 trials comparing integrated interventions with a standalone obesity intervention, 2 showed incremental effects on depression only, and 2 did not detect a significant effect for either outcome. One 3-arm trial compared an integrated intervention with standalone obesity and depression interventions and only detected incremental effects on obesity when compared with a standalone depression intervention. The effects of integrated interventions for comorbid obesity and depression are varied but promising. Implications for future research to guide intervention optimization and implement integrated interventions in clinical practice are provided.

Counselling and Behaviour Modification Techniques for the Management of Obesity in Postpartum and Midlife Women: A Practical Guide for Clinicians

Behaviour change is the basic foundation in the management of obesity. Such behaviour change is difficult to achieve due to several psychosocial and behavioural barriers that often remain unidentified and unaddressed in a weight management programme. This is even more challenging in postpartum and midlife women because of several biopsychosocial factors. The non-availability of psychologists or trained healthcare counsellors further complicates the attainment of behavioural changes. Therefore, clinicians, who are often the first point of contact for treating these population groups, are hamstrung by the lack of a multidisciplinary approach for weight reduction. Some of the common psychological, social and behavioural barriers have been identified in this article, and evidence-based techniques such as goal setting, stimulus control and cognitive restructuring are presented in a step-wise approach, to help clinicians cater to these population groups in a holistic manner.

Developing weight navigation program to support personalized and effective obesity management in primary care settings: protocol for a quality improvement program with an embedded single-arm pilot study

BACKGROUND

Primary care providers (PCPs) are expected to help patients with obesity to lose weight through behavior change counseling and patient-centered use of available weight management resources. Yet, many PCPs face knowledge gaps and clinical time constraints that hinder their ability to successfully support patients' weight loss. Fortunately, a small and growing number of physicians are now certified in obesity medicine through the American Board of Obesity Medicine (ABOM) and can provide personalized and effective obesity treatment to individual patients. Little is known, however, about how to extend the expertise of ABOM-certified physicians to support PCPs and their many patients with obesity.

AIM

To develop and pilot test an innovative care model - the Weight Navigation Program (WNP) - to integrate ABOM-certified physicians into primary care settings and to enhance the delivery of personalized, effective obesity care.

METHODS

Quality improvement program with an embedded, 12-month, single-arm pilot study. Patients with obesity and ≥1 weight-related co-morbidity may be referred to the WNP by PCPs. All patients seen within the WNP during the first 12 months of clinical operations will be compared to a matched cohort of patients from another primary care site. We will recruit a subset of WNP patients (n = 30) to participate in a remote weight monitoring pilot program, which will include surveys at 0, 6, and 12 months, qualitative interviews at 0 and 6 months, and use of an electronic health record (EHR)-based text messaging program for remote weight monitoring.

DISCUSSION

Obesity is a complex chronic condition that requires evidence-based, personalized, and longitudinal care. To deliver such care in general practice, the WNP leverages the expertise of ABOM-certified physicians, health system and community weight management resources, and EHR-based population health management tools. The WNP is an innovative model with the potential to be implemented, scaled, and sustained in diverse primary care settings.

Mechanisms of an eHealth program targeting depression in men with overweight or obesity: A randomised trial

BACKGROUND

The SHED-IT: Recharge study demonstrated that a gender-tailored eHealth program could improve the depressive symptoms of men with overweight or obesity and low mood. This study examined whether changes in key behaviours and cognitions acted as significant mediators of this treatment effect.

METHODS

The study was a randomised controlled trial (RCT) including 125 men with overweight or obesity (mean (SD) weight 103.8 (15.8) kg), and current depressive symptoms (Patient Health Questionnaire (PHQ-9) ≥ 5; mean (SD) 9.2 (4.1) units). Assessments were held at baseline, 3 months (post-intervention), and 6 months (follow-up). Depressive symptoms were assessed using the validated PHQ-9 and Masculine Depressive Risk Scale (MDRS-22). Behavioural and cognitive mediators were assessed with validated measures. Intention-to-treat mediation analyses were conducted using the PROCESS macro in SPSS.

RESULTS

Single mediation analyses demonstrated that the intervention effect on both PHQ-9 and MDRS-22 scores was significantly mediated by changes in MVPA, energy-dense nutrient-poor foods, cognitive flexibility, and behavioural activation. In addition, changes in sleep quality mediated improvements in MDRS-22 scores. No mediation effects were observed for light physical activity, sedentary behaviour, fruit and vegetable intake, risky alcohol consumption or mindfulness.

LIMITATIONS

The study was a secondary analysis with power to detect moderate-to-large mediation effects only.

CONCLUSION

To prevent or treat depression in men with overweight or obesity, early evidence suggests MVPA, sleep quality, energy-dense nutrient-poor food intake, cognitive flexibility, and behavioural activation are important intervention targets.

Combined association of central obesity and depressive symptoms with risk of heart disease: A prospective cohort study

OBJECTIVE

To examine the combined association of central obesity and depressive symptoms with risk of heart disease in a national prospective cohort study of the Chinese population.

METHODS

Data came from 10,722 community-dwelling adults aged over 45 years, from the China Health and Retirement Longitudinal Study during 2011-2018. Central obesity was assessed with waist circumference (WC) in physical examinations (men with a WC of ≥ 90 cm and women with a WC of ≥ 80 cm). Depressive symptoms were assessed using the 10-item Center for Epidemiologic Studies Depression Scale (score ≥ 10). Participants were assigned to four groups according to central obesity (yes/no) and depressive symptoms (yes/no). Cox proportional hazard regression was used after adjusting for covariates.

RESULTS

During 7 years of follow-up, we identified 1080 heart disease cases. Compared with people without central obesity and depressive symptoms, the multivariable-adjusted hazard ratios (95% confidence intervals) were 1.39 (1.18, 1.64) for those who had central obesity alone, 1.44 (1.18, 1.77) for those who had depressive symptoms alone, and 1.88 (1.55, 2.30) for those who had both central obesity and depressive symptoms. The combined association in men was more evident than that in women.

CONCLUSIONS

Our study provided evidence that the coexistence of central obesity and depressive symptoms were associated with a substantially increased risk of heart disease compared to those without these two conditions.

The menace of obesity to depression and anxiety prevalence

The incidence of depression and anxiety is amplified by obesity. Mounting evidence reveals that the psychiatric consequences of obesity stem from poor diet, inactivity, and visceral adipose accumulation. Resulting metabolic and vascular dysfunction, including inflammation, insulin and leptin resistance, and hypertension, have emerged as key risks to depression and anxiety development. Recent research advancements are exposing the important contribution of these different corollaries of obesity and their impact on neuroimmune status and the neural circuits controlling mood and emotional states. Along these lines, this review connects the clinical manifestations of depression and anxiety in obesity to our current understanding of the origins and biology of immunometabolic threats to central nervous system function and behavior.

Association of childhood abuse with behavioral weight-loss outcomes: Examining the mediating effect of binge eating severity

OBJECTIVE

The study aims were to (1) document the relationship between a history of childhood abuse and weight change during behavioral obesity treatment and (2) estimate the indirect effect of childhood abuse on weight change through binge eating severity.

METHODS

Participants (n = 431) were enrolled in a behavioral weight-loss intervention. Childhood physical and emotional abuse history and current binge eating severity were self-reported. Percent weight loss at 6 months was calculated using measured weight. Adjusted mediation models examined whether there was an indirect effect of childhood physical and emotional abuse on 6-month percent weight loss that operated through binge eating severity.

RESULTS

After covariate adjustment, childhood physical abuse, but not emotional abuse, predicted a lower percent weight loss (B = -1.78%; 95% CI: -3.10% to -0.47%). Although childhood physical and emotional abuse were positively related to baseline binge eating severity, binge eating severity did not mediate the associations between either childhood abuse type and percent weight loss.

CONCLUSIONS

Individuals with a childhood physical abuse history had a lower percent weight loss than those without such histories during behavioral obesity treatment. This effect was not explained by binge eating severity. Individuals with a history of childhood abuse may benefit from trauma-informed obesity care.

Adherence to Lifestyle Interventions for Treatment of Adults with Depression: A Systematic Review and Meta-Analysis

The aim of this systematic review was to determine the adherence to lifestyle interventions for adults with depression and to estimate the dropout rates in trials examining the impact of these interventions. A bibliographic search was conducted in PubMed, Embase, PsycINFO, the Cochrane library, and several sources of grey literature. We included randomised controlled trials examining the impact of multiple lifestyle interventions on depressive symptomatology in adults when compared to control or other active treatments. Two reviewers independently screened citations, extracted the relevant data, and assessed the risk of bias using Cochrane tools. A random effects meta-analysis of proportions was used to summarise the proportion of participants who completed the intervention and to determine the proportion of dropouts at post-treatment assessment. Multiple subgroup analyses were also carried out. We identified six trials. The meta-analysis of proportions showed that 53% (95%CI 49% to 58%) of the participants assigned to the intervention group fully adhered to the intervention program. The weighted mean proportion of completed intervention sessions was 66%. The pooled trial dropout rate was 22% (95%CI 20% to 24%). Around half of adults with depression adhere to lifestyle interventions. Future research is needed to develop interventions to support adherence to lifestyle interventions in depressive patients.

Men's Perceptions of a Gender-Tailored eHealth Program Targeting Physical and Mental Health: Qualitative Findings from the SHED-IT Recharge Trial

Despite increasing rates of co-morbid depression and obesity, few interventions target both conditions simultaneously, particularly in men. The SHED-IT: Recharge trial, conducted in 125 men with depressive symptoms and overweight or obesity, tested the efficacy of a gender-tailored eHealth program with integrated mental health support. The aims of this study were to examine the perceptions of men who received the SHED-IT: Recharge intervention in relation to recruitment, satisfaction with the program, and suggestions to improve the program. Individual semi-structured interviews were conducted in a random sub-sample, stratified by baseline depression and weight status (n = 19, mean (SD) age 49.6 years (11.6), PHQ-9 score 9.0 (3.7), BMI 32.5 kg/m2 (4.6)). Transcripts were analyzed using an inductive process by an independent qualitative researcher. Four themes emerged, namely, (i) specific circumstances determined men's motivation to enroll, (ii) unique opportunity to implement sustained physical and mental health changes compared to previous experiences, (iii) salience of the program elements, and (iv) further opportunities that build accountability could help maintain focus. Gender-tailored, self-directed lifestyle interventions incorporating mental health support are acceptable and satisfying for men experiencing depressive symptoms. These findings provide important insights for future self-guided lifestyle interventions for men with poor physical and mental health.

Depression and obesity among females, are sex specificities considered?

This study aimed to systematically review the relationship of obesity-depression in the female sex. We carried out a systematic search (PubMed, MEDLINE, Embase) to quantify the articles (controlled trials and randomized controlled trials) regarding obesity and depression on a female population or a mixed sample. Successively, we established whether the sex specificities were studied by the authors and if they reported on collecting data regarding factors that may contribute to the evolution of obesity and depression and that could be responsible for the greater susceptibility of females to those conditions. After applying the inclusion and exclusion criteria, we found a total of 20 articles with a female sample and 54 articles with a mixed sample. More than half of all articles (51.35%, n = 38) evaluated the relationship between depression and obesity, but only 20 (27.03%) evaluated this relationship among females; still, 80% of those (n = 16) presented supporting results. However, few articles considered confounding factors related to female hormones (12.16%, n = 9) and none of the articles focused on factors responsible for the binomial obesity-depression in the female sex. The resulting articles also supported that depression (and related impairments) influencing obesity (and related impairments) is a two-way road. This systematic review supports the concurrency of obesity-depression in females but also shows how sex specificities are ultimately under-investigated. Female sex specificity is not being actively considered when studying the binomial obesity-depression, even within a female sample. Future studies should focus on trying to understand how the female sex and normal hormonal variations influence these conditions.

The impact of participant mental health on attendance and engagement in a trial of behavioural weight management programmes: secondary analysis of the WRAP randomised controlled trial

Background

Low attendance and engagement in behavioural weight management trials are common. Mental health may play an important role, however previous research exploring this association is limited with inconsistent findings. We aimed to investigate whether mental health was associated with attendance and engagement in a trial of behavioural weight management programmes.

Methods

This is a secondary data analysis of the Weight loss referrals for adults in primary care (WRAP) trial, which randomised 1267 adults with overweight or obesity to brief intervention, WW (formerly Weight Watchers) for 12-weeks, or WW for 52-weeks. We used regression analyses to assess the association of baseline mental health (depression and anxiety (by Hospital Anxiety and Depression Scale), quality of life (by EQ5D), satisfaction with life (by Satisfaction with Life Questionnaire)) with programme attendance and engagement in WW groups, and trial attendance in all randomised groups.

Results

Every one unit of baseline depression score was associated with a 1% relative reduction in rate of WW session attendance in the first 12 weeks (Incidence rate ratio [IRR] 0.99; 95% CI 0.98, 0.999). Higher baseline anxiety was associated with 4% lower odds to report high engagement with WW digital tools (Odds ratio [OR] 0.96; 95% CI 0.94, 0.99). Every one unit of global quality of life was associated with 69% lower odds of reporting high engagement with the WW mobile app (OR 0.31; 95% CI 0.15, 0.64). Greater symptoms of depression and anxiety and lower satisfaction with life at baseline were consistently associated with lower odds of attending study visits at 3-, 12-, 24-, and 60-months.

Conclusions

Participants were less likely to attend programme sessions, engage with resources, and attend study assessments when reporting poorer baseline mental health. Differences in attendance and engagement were small, however changes may still have a meaningful effect on programme effectiveness and trial completion. Future research should investigate strategies to maximise attendance and engagement in those reporting poorer mental health.

Trial registration

The original trial (ISRCTN82857232) and five year follow up (ISRCTN64986150) were prospectively registered with Current Controlled Trials on 15/10/2012 and 01/02/2018.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12966-021-01216-6.

Physical activity, diet, and weight loss in patients recruited from primary care settings: An update on obesity management interventions

BACKGROUND

Obesity and related comorbidities are the most common chronic conditions in North America where behavior modification including the adoption of physical activity (PA) and a healthful diet are primary treatment strategies. Patients are more likely to engage in behavior modification if encouraged by their physician; however, behavioral counseling in primary care rarely occurs due to lack of training and resources. A more effective method may be to refer patients from clinical settings to other health professionals.

OBJECTIVE

This systematic review examines the effectiveness of behavior-based counseling for obesity management among participants referred from clinical settings.

METHODS

PubMed, CINAHL, and EMBASE were used to identify randomized clinical trials (2014-2020) for weight loss with the following inclusion criteria: trial duration ≥12 months, included a control or usual care group, recruited adults with overweight or obesity from primary care and/or treated in the primary care setting, and the intervention included counseling on PA and diet.

RESULTS

Seventeen studies, encompassing 21 different intervention groups with 6185 unique participants (56% female) met the inclusion criteria. All participants had overweight or obesity, with a body mass index between 28.2 and 41.0 kg/m2. In 11 (52%) of the intervention groups, significant weight loss in the intervention group was observed compared to usual care (mean weight loss: 4.9[2.1] kg vs. 1.0[0.9] kg). In 13 out of 18 interventions (72%) reporting weight loss at two time points, weight regain was observed by 12 months. Statistically significant weight loss was observed in one intervention (of two total) that was longer than 12 months.

CONCLUSIONS

Sustained weight loss regardless of the behavior-based, intervention strategy remains a challenge for most adults. Given the established benefits of routine PA and a healthful diet, prioritizing the adoption of healthy behaviors regardless of weight loss may be a more effective strategy for ensuring long-term health benefit.

Problem-solving therapy-induced amygdala engagement mediates lifestyle behavior change in obesity with comorbid depression: a randomized proof-of-mechanism trial

BACKGROUND

Depression hinders obesity treatment; elucidating mechanisms may enable treatment enhancements.

OBJECTIVES

The aim was to investigate whether changes in neural targets in the negative affect circuit following psychotherapy mediate subsequent changes in weight and behaviors.

METHODS

Adults (n = 108) with obesity and depression were randomly assigned to usual care or an intervention that delivered problem-solving therapy (PST) for depression over 2 mo. fMRI for brain imaging was performed at baseline and 2 mo. BMI, physical activity, and diet were measured at baseline and 12 mo. Mediation analysis assessed between-group differences in neural target changes using t test and correlations between neural target changes and outcome changes (simple and interaction effect) using ordinary least-squares regression.

RESULTS

Compared with usual care, PST led to reductions in left amygdala activation (-0.75; 95% CI: -1.49, -0.01) and global scores of the negative affect circuit (-0.43; -0.81, -0.06), engaged by threat stimuli. Increases in amygdala activation and global circuit scores at 2 mo correlated with decreases in physical activity outcomes at 12 mo in the usual-care group; these relations were altered by PST. In relation to change in leisure-time physical activity, standardized β-coefficients were -0.67 in usual care and -0.01 in the intervention (between-group difference: 0.66; 0.02, 1.30) for change in left amygdala activation and -2.02 in usual care and -0.11 in the intervention (difference: 1.92; 0.64, 3.20) for change in global circuit scores. In relation to change in total energy expenditure, standardized β-coefficients were -0.65 in usual care and 0.08 in the intervention (difference: 0.73; 0.29, 1.16) for change in left amygdala activation and -1.65 in usual care and 0.08 in the intervention (difference: 1.74; 0.85, 2.63) for change in global circuit scores. Results were null for BMI and diet.

CONCLUSIONS

Short-term changes in the negative affect circuit engaged by threat stimuli following PST for depression mediated longer-term changes in physical activity. This trial was registered at www.clinicaltrials.gov as NCT02246413 (https://clinicaltrials.gov/ct2/show/NCT02246413).

Group Lifestyle Phone Maintenance for Weight, Health, and Physical Function in Adults Aged 65-80 Years: A Randomized Clinical Trial

BACKGROUND

Group lifestyle sessions with phone maintenance could improve weight, health, and function in vulnerable older adults.

METHODS

Community-dwelling adults (N = 322) with body mass index (BMI, kg/m2) ≥27 and additional risk factors received 12 one-hour in-person behavioral weight management group sessions then were randomized to 8 half-hour telephone sessions (n = 162) or newsletter control (n = 160) from 4 to 12 months with no treatment contact thereafter. Primary outcome was 0- to 12-month weight change. Cardiometabolic, short physical performance battery (SPPB), and self-reported activity changes were assessed at 12 and 24 months.

RESULTS

At baseline, the mean (SD) age was 71.2 (4.3) and BMI was 33.8 (5.1). Participants were 77% women, 13% Black, 85% retired, averaging 4 medical conditions, and taking blood pressure (67.4%) and lipid-lowering (51.6%) medications. At 12 months, a greater proportion of the phone group (66.0%) achieved ≥5% weight loss compared with newsletter control (53.2%; p = .02). Mean (95% CI) weight loss was greater for phone (-6.6 kg [-7.5, -5.8]) than newsletter (-5.1 kg [-7.2, -3.0]); p = .01. Modest lipid, glucose, and blood pressure improvements were found, but did not differ significantly between groups. Small SPPB and activity improvements were maintained at 12 and 24 months in both groups.

CONCLUSIONS

Brief phone contacts compared to newsletters enhanced weight loss maintenance among older high-risk adults at 1 year, but not cardiometabolic outcomes. Modest functional improvements were observed in both. Lower-intensity maintenance contacts (phone or newsletter) for weight, health, and physical function in older adults warrant further study.

CLINICAL TRIALS REGISTRATION NUMBER

NCT03192475.

Seeking a pot of gold with integrated behavior therapy and research to improve health equity: insights from the RAINBOW trial for obesity and depression

More than one third of adults in the United States (U.S.) live with multiple chronic conditions that affect their physical and mental health, functional outcomes, independence, and mortality. The COVID-19 pandemic has exposed not only an increased risk for infection, morbidity, and mortality among those with chronic conditions but long-standing health inequities by age, race, sex, and other social determinants. Obesity plus depression represent one such prevalent comorbidity for which few effective integrated interventions exist, prompting concern about the potential for secondary physical and mental health pandemics post COVID-19. Translational behavioral medicine research can play an important role in studying integrated collaborative healthcare approaches and advancing scientific understanding on how to engage and more effectively treat diverse populations with physical and mental health comorbidities. The RAINBOW (Research Aimed at Improving Both Mood and Weight) clinical trial experience offers a wealth of insights into the potential of collaborative care interventions to advance behavior therapy research and practice. Primary care patients with co-occurring obesity and depression were assigned to either Integrated Coaching for Mood and Weight (I-CARE), which blended Group Lifestyle Balance (GLB) for weight management and the Program to Encourage Active Rewarding Lives (PEARLS) for depression, or usual care, to examine clinical, cost-effectiveness, and implementation outcomes. This commentary highlights the empirical findings of eight RAINBOW research papers and discusses implications for future studies, including their relevance in the U.S. COVID-19 context. Organized by key principles of translational behavioral medicine research, the commentary aims to examine and embrace the heterogeneity of baseline and intervention response differences among those living with multiple chronic conditions. We conclude that to prevent health and healthcare disparities from widening further, tailored engagement, dissemination, and implementation strategies and flexible delivery formats are essential to improve treatment access and outcomes among underrepresented populations.

Testing a tailored weight management program for veterans with PTSD: The MOVE! + UP randomized controlled trial

Post-traumatic stress disorder (PTSD), prevalent among Veterans, increases risk for having a high Body Mass Index. Although the Veterans Health Administration (VHA) offers an evidence-based behavioral weight management program called MOVE!, participants with PTSD lose less weight than those without mental health conditions, despite comparable participation. PTSD symptoms can interfere with one's ability to be physically active and maintain a healthy diet, the key targets in weight management programs. We developed and piloted a behavioral weight management program called MOVE! + UP that targets PTSD-related weight loss barriers. MOVE! + UP includes 16 group sessions with training in evidence-based weight management strategies, coupled with Cognitive Behavior Therapy (CBT) skills to address PTSD-specific barriers. The 16 sessions also include 30-min community walks to address PTSD-related barriers that may impede exercise. Two individual dietician sessions are provided. This hybrid type 1 randomized controlled trial (RCT) will compare MOVE! + UP to standard care-MOVE!-among 164 Veterans with BMI ≥ 25 who are receiving care for PTSD. We will randomize participants to MOVE! + UP or standard care and will compare absolute post-baseline change in weight at 6 (primary outcome) and 12 (secondary outcome) months, and PTSD symptom severity at 6 and 12 months (secondary outcome). Exploratory analyses will compare the treatment conditions on treatment targets measured at 6 months (e.g., physical activity, eating behavior, social support). Finally, we will estimate intervention costs, and identify MOVE! + UP implementation barriers and facilitators. If effective, MOVE! + UP could be an efficient way to simultaneously address physical and mental health for Veterans with PTSD.

Primary care-based interventions for treatment of obesity: a systematic review

OBJECTIVE

The objective of this study was to synthesise evidence from primary care-based interventions for the treatment of obesity in adults and the elderly.

STUDY DESIGN

Systematic review.

METHODS

Eight electronic databases (MEDLINE, Lilacs, Embase, Psycinfo, Cochrane, WHOLIS, Open Gray and Scholar Google) were searched. There was no limitation on publication period; articles published in English, Portuguese or Spanish were included. The selection, data extraction and quality analyses were performed by three reviewers.

RESULTS

A literature search retrieved 6464 publications, of which 5120 publications were excluded after reading the title/abstract and 293 after reading the full text. In total, 56 publications, representing 72 interventions were included. All studies were published between 2000 and 2020. Most studies were conducted in high-income countries. The mean duration of interventions was 11.5 months (SD: 7.5), ranging from 3 to 44 months. Most interventions were effective for body mass index reduction, weight loss and waist circumference change.

CONCLUSION

Our study showed that most interventions were effective for outcomes analysed in adults and the elderly. We also found some literature gaps, such as the need to implement and evaluate obesity after intervention and the requirement to carry out more studies in low- and middle-income countries.

Effect of left gastric artery embolization on obesity and ghrelin/leptin levels in pigs

OBJECTIVE

To investigate the influence of left gastric artery embolization (LGAE) on obesity and Ghrelin/Leptin levels in pigs.

METHODS

Healthy female Wuzhishan piglets aged 3-4 months were allocated into obesity + LGAE group, obesity group, control group (fed with a normal diet; n=8 for each group). Body weight, serum Ghrelin, Leptin, glucose and insulin levels were compared before surgery, 1 month and 3 months after surgery.

RESULTS

Piglets in obesity group and obesity + LGAE group were heavier than those in control group before and 1 month after surgery (P<0.001), and in obesity group were heavier than those in obesity + LGAE group 1 month after surgery (P<0.05). A significant decrease in body weight was observed in obesity + LGAE group 3 months after surgery (P<0.05), and the obesity group showed heavier weight than the other two groups (P<0.001). Ghrelin levels in obesity group and obesity + LGAE group were higher than those in control group before and 1 month after surgery (P<0.001), and in obesity group were higher than those in obesity + LGAE group 1 month after surgery (P<0.05). They showed an evident decrease in obesity + LGAE group 3 months after surgery (P<0.05), and in obesity group were higher than that in the other two groups (P<0.01). Leptin levels in obesity group and obesity + LGAE group were higher than those in control group before surgery (P<0.01) and 1 month after surgery (P<0.05). They decreased significantly in obesity + LGAE group 3 months after surgery (P<0.01), and in obesity group were higher than those in the other two groups (P<0.01).

CONCLUSION

LGAE greatly contributes to weight loss possibly by reducing the secretion of Ghrelin and Leptin.

Effect of left or right gastric artery interventional embolization on obesity and ghrelin/leptin expression in pigs

OBJECTIVE

To investigate the effect of left or right gastric artery interventional embolization on obesity and ghrelin/leptin expression in pigs.

METHODS

Thirty-two female Wuzhishan pigs aged 3-4 months were randomly divided into four groups, with eight pigs in each group: obesity + left gastric artery embolization group, obesity + right gastric artery embolization group, obesity + sham surgery group and healthy control group. The body weight and serum levels of ghrelin, leptin, interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) before the operation, one month and three months after the operation, and the gastric pathology three months after the operation were compared.

RESULTS

The preoperative body weight, ghrelin level, leptin level, IL-6 level and TNF-α level of the obesity + sham surgery group, obesity + left gastric artery embolization group and obesity + right gastric artery embolization group were higher than those of the healthy control group (all P<0.05). One month after the operation, the body weight, ghrelin level, leptin level, IL-6 level and TNF-α level of the obesity + sham surgery group, obesity + left gastric artery embolization group and obesity + right gastric artery embolization group were higher than those of the healthy control group. The body weight, ghrelin level, IL-6 level and TNF-α level of the obesity + sham surgery group were higher than those of the obesity + left artery embolization group and obesity + right gastric artery embolization group (all P<0.05). Three months after the operation, the body weight, ghrelin level, leptin level, IL-6 level and TNF-α level of the obesity + sham surgery group were higher than those of the obesity + left artery embolization group, obesity + right artery embolization group and the healthy control group (all P<0.05).

CONCLUSION

Left or right gastric artery interventional embolization in pigs can effectively reduce body weight, which may be related to the reduced secretion of ghrelin, leptin and inflammatory factors. However, the clinical application and safety of left or right gastric artery embolization still need further study.

Early changes in neural circuit function engaged by negative emotion and modified by behavioural intervention are associated with depression and problem-solving outcomes: A report from the ENGAGE randomized controlled trial

BACKGROUND

Depression exerts a staggering toll that is worsened with co-occurring chronic conditions such as obesity. It is imperative to develop more effective interventions for depression and to identify objective and biological plausible neural mechanisms to understand intervention outcomes. The current study uses functional neuroimaging to determine whether a behavioural intervention changes the negative affect circuit and whether these changes relate to subsequent improvements in both symptom and problem-solving outcomes in depressed patients with co-occurring obesity.

METHODS

This study ('ENGAGE') was a pre-planned element of the randomized controlled trial, 'RAINBOW' (ClinicalTrials.gov NCT02246413). 108 depressed patients with obesity were randomized to receive an integrated collaborative care intervention (I-CARE) or usual care. Participants underwent functional neuroimaging using an established facial emotion task at baseline and two months (coinciding with the first two months of intervention focused on problem-solving therapy ('PST')). Amygdala, insula and anterior cingulate cortex activation was extracted using pre-planned definitions and standardized methods. The primary health and behavioural outcomes were depression symptom severity and problem-solving ability respectively, assessed at baseline, the main 6-month outcome point and at 12-month follow up. Mediation analyses used an intent-to-treat approach.

FINDINGS

PST, relative to usual care, reduced amygdala activation engaged by threat stimuli at two months. This reduction mediated subsequent improvements in depression severity in an intervention-dependent manner. PST did not change insula activation at two months but did temper the strength of the relationship between insula activation and improvements in problem-solving ability.

INTERPRETATION

The negative affect circuit may be an important neural target and potential mediator of PST in patients with comorbid obesity.

FUNDING

US National Institutes of Health/National Heart Lung and Blood Institute R01 HL119453 and UH2/UH3 HL132368.

Association between child/adolescent overweight/obesity and conduct disorder: A systematic review and meta-analysis

BACKGROUND

Research findings of the association and its pattern between obesity and psychiatric/psychological comorbidities are not consistent across the types of comorbidities or the study subgroups.

OBJECTIVES

We aimed to perform meta-analysis of cross-sectional studies and longitudinal studies analysing obesity as a risk factor for conduct disorder in order to assess the association between child/adolescent overweight/obesity and conduct disorder.

METHODS

Systematic literature search, study selection and data extraction were performed independently by the two authors. Data were analysed by Comprehensive Meta-analysis software.

RESULTS

Analysis of 13 high-quality cross-sectional studies including 79 027 children and adolescents indicated a significant association between overweight/obesity and conduct disorder among children and adolescents (OR 1.32 [95% CI, 1.18-1.49], I² = 86.68), with no publication bias. Subgroup analyses yielded a significant difference (P < .01) between boys and girls. Analysis of four low- to moderate-quality longitudinal studies (OR 1.11 [95% CI, 0.89-1.38], I² = 57.69) showed no prospective association between overweight/obesity and conduct disorder. Subgroup analysis according to gender revealed a significant positive association for boys and negative association for girls.

CONCLUSIONS

Based on the high-quality cross-sectional data, overweight and obesity are associated with conduct disorder among children and adolescents, affecting boys more frequently than girls. Results of the longitudinal analysis indicated possible association in boys, while girls seem to be protected from conduct disorder. However, these results are very unreliable, indicating the need of well-designed longitudinal studies to elucidate the pattern of association between these disorders.

Understanding mechanisms of integrated behavioral therapy for co-occurring obesity and depression in primary care: a mediation analysis in the RAINBOW trial

The RAINBOW trial demonstrated that an integrated collaborative care intervention was effective for improving weight and depression. This study examined mediation of the treatment effect by a priori specified lifestyle behaviors and cognitive functioning. Participants were randomized to a 12-month integrated intervention (n = 204) or usual care (n = 205). Body mass index (BMI) and 20-item Depression Symptom Check List (SCL-20) were co-primary outcomes (Y). To examine mediation, we assessed (a) the effect of the integrated intervention (X) on lifestyle behaviors (diet and physical activity) and cognitive functioning (problem-solving; M, X→M path a) and (b) the association of these behaviors with BMI and SCL-20 (M→Y path b). Mediation existed if paths a and b were significant or if path a and the product of coefficients test (paths a and b) were significant. Compared with usual care, the intervention led to significant improvements in leisure time physical activity (201.3 MET minutes/week [SD, 1,457.6]) and total calorie intake (337.4 kcal/day [818.3]) at 6 months but not 12 months (path a). These improvements were not significantly associated with improvements in BMI or SCL-20 (path b). However, avoidant problem-solving style score and increased fruit and vegetable intake significantly correlated with improvements in BMI at 6 and 12 months, respectively. Also, increased fruit and vegetable intake, higher dietary quality, and better problem-solving abilities significantly correlated with improvements in SCL-20 at 6 and 12 months. These findings did not support the hypothesized mediation, but suggest lifestyle behaviors and cognitive functioning to target in future intervention optimization.

Using RE-AIM to examine the potential public health impact of an integrated collaborative care intervention for weight and depression management in primary care: Results from the RAINBOW trial

BACKGROUND

An integrated collaborative care intervention was used to treat primary care patients with comorbid obesity and depression in a randomized clinical trial. To increase wider uptake and dissemination, information is needed on translational potential.

METHODS

The trial collected longitudinal, qualitative data at baseline, 6 months (end of intensive treatment), 12 months (end of maintenance treatment), and 24 months (end of follow-up). Semi-structured interviews (n = 142) were conducted with 54 out of 409 randomly selected trial participants and 37 other stakeholders, such as recruitment staff, intervention staff, and clinicians. Using a Framework Analysis approach, we examined themes across time and stakeholder groups according to the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework.

RESULTS

At baseline, participants and other stakeholders reported being skeptical of the collaborative care approach related to some RE-AIM dimensions. However, over time they indicated greater confidence regarding the potential for future public health impact. They also provided information on barriers and actionable information to enhance program reach, effectiveness, adoption, implementation, and maintenance.

CONCLUSIONS

RE-AIM provided a useful framework for understanding how to increase the impact of a collaborative and integrative approach for treating comorbid obesity and depression. It also demonstrates the utility of using the framework as a planning tool early in the evidence-generation pipeline.

Nutrition-based interventions for mood disorders

Introduction: 'Nutritional Psychiatry' is an emerging area of research that has great potential as an adjunctive tool for the prevention and treatment of diverse neuropsychiatric disorders. Several nutrition-related aspects, such as obesity, dietary patterns, gut microbiome composition and gut permeability, bioactive food compounds, and nutrients can influence pathways implicated in the pathophysiology of mood disorders.Areas covered: Here, the authors review the current evidence on nutrition-mood interaction and nutrition-based treatments for the two main mood disorders, i.e., major depressive disorder and bipolar disorder.Expert opinion: Consistent evidence from observational studies has pointed out the association between a 'healthy' diet, generally characterized by a higher intake of fruits, vegetables, legumes, nuts, whole grains, and good quality sources of protein (i.e. fish and/or seafood), and decreased risk of mood disorders and the parallel association between a 'Western' diet pattern and increased risk. However, only a few clinical trials have evaluated the effect of nutritional interventions on the treatment of these conditions. The bidirectional interaction between the brain and the gut, named 'brain-gut-microbiome axis' or 'gut-brain axis', plays a key role in the link between nutrition and mood disorders. Therefore, nutrition-based strategies for gut microbiota modulation are promising fields in mood disorders.

Sex Moderates Treatment Effects of Integrated Collaborative Care for Comorbid Obesity and Depression: The RAINBOW RCT

BACKGROUND

Sex influences health and related behaviors due to biological and psychosocial/socioeconomic factors. Assessing sex-specific responses to integrated treatment for comorbid obesity and depression could inform intervention targeting.

PURPOSE

To test (a) whether sex moderates the effects of integrated collaborative care on weight and depression outcomes through 24 months and (b) whether treatment response at 6 months predicts 12 and 24 month outcomes by sex.

METHODS

Secondary data analyses on weight and depression severity (SCL-20) measured over 24 months among 409 adults with obesity and depression in the Research Aimed at Improving Both Mood and Weight trial.

RESULTS

Men achieved significantly greater weight reductions in intervention versus usual care than women, whereas women achieved significantly greater percentage reductions in SCL-20 than men at both 12 and 24 months. In logistic models, at 80% specificity for correctly identifying participants not achieving clinically significant long-term outcomes, women who lost <3.0% weight and men who lost <4.1% weight at 6 months had ≥84% probability of not meeting 5% weight loss at 24 months. Similarly, at 80% specificity, women who reduced SCL-20 by <39.5% and men who reduced by <53.0% at 6 months had ≥82% probability of not meeting 50% decrease in SCL-20 at 24 months.

CONCLUSIONS

Sex modified the integrated treatment effects for obesity and depression. Sex-specific responses at 6 months predicted clinically significant weight loss and depression outcomes through 24 months. Based on early responses, interventions may need to be tailored to address sex-specific barriers and facilitators to achieving healthy weight and depression outcomes at later time points.

CLINICAL TRIAL REGISTRATION

NCT02246413 (https://clinicaltrials.gov/ct2/show/NCT02246413).

Weight loss effects in usual primary care: Findings from 5 behavioral weight loss RCTs

Primary care is an important setting for obesity treatment and behavior therapy is considered the first line. However, current practice often does not meet clinical guidelines and, furthermore, effects of usual care (UC) on weight loss are unclear. This makes it difficult to design sufficiently powered weight loss trials in primary care. This study analyzed data from UC control participants across 5 primary care-based randomized clinical trials of behavioral weight loss interventions to assess UC effects for 4 weight outcomes: body mass index (BMI), weight change (kg and %), and percent of participants achieving clinically significant 5% weight loss. Results indicated modest UC effects, suggesting modest weight loss is possible in usual primary care.

The association between overweight/obesity and psychological distress: A population based cross-sectional study in Saudi Arabia

Objectives

The objective of this study was to compare the association between mental well-being between obese (classes 1 and 2), over-weight and non-obese population-based individuals

Methods

A population-based cross-sectional study was conducted in Al-Kharj, Saudi Arabia. A total of 1019 Saudi nationals aged ≥ 18 years participated in the survey. BMI scores were used to categorize participants into three groups: Obese, overweighted and non-obese/non-overweight. Mental well-being was evaluated by using the validated Arabic version of the General Health Questionnaire version 12 (GHQ-12).

Results

We used total GHQ score (Mean=12; SD=5.23) to compare mental well-being between the four BMI class categories. The overall one-way ANOVA model was statistically significant (F = 7.018, d = 6, P < 0.001). In multivariate analysis, after adjusting for sociodemographic variables, diabetes and smoking statuses we found that higher psychological distress (as evident by a higher total GHQ score) was associated with higher BMI. The unstandardized Beta regression coefficient = 2.627; P = 0.034). Females were more likely to have higher psychological distress than males (unstandardized Beta = 1.466, P = 0.003). Job status whether being unemployed or ‘civilian’ (civil worker) was significantly associated with higher psychological distress (unstandardized Beta = 1.405, P = 0.041). Being diabetic has a 1.6 times higher risk of psychological distress (unstandardized Beta = 1.604, P = 0.027).

Conclusion

The study highlights the public health implications of psychological distress amongst individuals with overweight and obesity in Saudi Arabia. Future longitudinal studies should explore the temporality of this relationship.

Diet and depression: exploring the biological mechanisms of action

The field of nutritional psychiatry has generated observational and efficacy data supporting a role for healthy dietary patterns in depression onset and symptom management. To guide future clinical trials and targeted dietary therapies, this review provides an overview of what is currently known regarding underlying mechanisms of action by which diet may influence mental and brain health. The mechanisms of action associating diet with health outcomes are complex, multifaceted, interacting, and not restricted to any one biological pathway. Numerous pathways were identified through which diet could plausibly affect mental health. These include modulation of pathways involved in inflammation, oxidative stress, epigenetics, mitochondrial dysfunction, the gut microbiota, tryptophan-kynurenine metabolism, the HPA axis, neurogenesis and BDNF, epigenetics, and obesity. However, the nascent nature of the nutritional psychiatry field to date means that the existing literature identified in this review is largely comprised of preclinical animal studies. To fully identify and elucidate complex mechanisms of action, intervention studies that assess markers related to these pathways within clinically diagnosed human populations are needed.

Diabesity and Perinatal Mental Health: Evidence-based Recommendations for Screening and Intervention

Perinatal mental illness, obesity, and diabetes mellitus are common complications of the perinatal period that are becoming ever more prevalent and frequently co-occur. This review seeks to examine the prevalence of comorbid obesity/diabetes (termed "diabesity") and mental illness in the perinatal period and current understandings of the psychosocial and pathophysiological relationships between these diseases. We will present current guidelines for screening and make recommendations for adaptations of mental health treatment in patients with this comorbidity. Finally, we present future directions for research and clinical intervention.

The psychology of obesity: An umbrella review and evidence-based map of the psychological correlates of heavier body weight

Psychological factors may explain why some people develop obesity and others remain a normal weight during their life course. We use an umbrella review approach to build an evidence-based map of the psychological correlates of heavier body weight. Synthesising findings from 42 meta-analyses that have examined associations between psychological factors and heavier body weight, we assessed level of evidence for a range of cognitive, psychosocial and mental health individual difference factors. There is convincing evidence that impaired mental health is associated with heavier body weight and highly suggestive evidence that numerous cognitive factors are associated with heavier body weight. However, the relatively low methodological quality of meta-analyses resulted in lower evidential certainty for most psychosocial factors. Psychological correlates of heavier body weight tended to be small in statistical size and on average, people with obesity were likely to be more psychologically similar than different to people with normal weight. We consider implications for understanding the development of heavier body weight and identifying effective public health interventions to reduce obesity.

Effect of a Workplace Weight-Loss Program for Overweight and Obese Healthcare Workers

PURPOSE

Examining the effect of a workplace weight-loss program on weight loss, and physical, behavioral and mental well-being among overweight/obese healthcare workers.

DESIGN

Quasi experimental design.

SETTING

Single healthcare setting.

PARTICIPANTS

Forty-one (48.0 ± 11.2 years) day-time shift healthcare employees with body mass index [BMI] >29 kg/m².

INTERVENTION

Sixteen-week program with weekly group meetings/activities and individual appointments with nutrition/health experts.

MEASURES

Objective (weight, BMI, blood pressure) and self-reported measures were collected at baseline, conclusion of the intervention and 3 to 6 months post-intervention.

ANALYSIS

Repeated measure analysis accounting for confounders.

RESULTS

Participants had an average of 13 pounds (5.6%) weight loss (224.2 ± 6.4 vs. 211.6 ± 6.4 lbs.; P < 0.0001) upon program completion with significant decreases in BMI (37.7 ± 1.0 vs. 35.1 ± 1.0 kg/m²; P < 0.0001). Extreme obesity (BMI≥40 kg/m²) rate was reduced from 36.6% to 17.1% (P < 0.0001). There were decreases in diastolic blood pressure (76.0 ± 1.4 vs. 68.7 ± 1.5 mmHg; P = 0.001) and self-reported blood glucose (119.9 ± 4.4 vs. 105.5 ± 4.6 mg/dL; P = 0.03). Participants had improvements in weekly physical activity (25% change; P = 0.01), nutrition behavior (33% change, P < 0.0001), sleep quality (23% change, P = 0.005), and depression (72% change, P < 0.0001). Twenty-seven participants had post-intervention follow-up data. On average participants regained 8 pounds, which was less than the initial weight loss (16 lbs., N = 27).

CONCLUSION

The results suggest the program may benefit healthcare employees. Further emphasis should be placed on post-intervention weight management to prevent weight regain.

Understanding Health Talk in Behavioral Health Encounters: A Qualitative Analysis

Although physical and behavioral health conditions commonly cooccur, best practices making behavioral health treatment responsive to clients' health needs are limited. Particularly little is known about how physical health is addressed by clinicians within routine therapeutic treatment. This study describes the frequency and type of health talk occurring within integrated behavioral health sessions, and explores how this talk functions within ongoing therapeutic work. Participants in this study included 51 dyads of clinical social workers (n = 13) and clients (n = 51) receiving therapy within an integrated community health and behavioral health center. Therapy sessions were recorded and transcribed verbatim. Content analysis determined the frequency and content of health talk in sessions. Thematic analysis was used to understand the function of health talk within these visits. Health talk occurred in 92% (n = 47) of sessions. Clients initiated the majority of discussions. Talk about sleep (40%, n = 19), diet/exercise (35%, n = 16), and chronic health conditions (28%, n = 13) were most common. Health talk either complimented or conflicted with therapeutic work, depending on the topic discussed and when it occurred during session. Health talk changed the scope of therapeutic work by integrating care coordination into routine practice. Health talk was pervasive and was frequently initiated by clients, signaling its relevance to clients' recovery. Providers leveraged heath talk to complement their therapeutic work, but these strategies were not universally applied. Care coordination activities were a part of routine therapy. Practice and policy changes that support a more interdisciplinary approach to clinical work are needed.

Mental Health Diagnostic Patterns in Behavioral Weight Loss Program Attendees

INTRODUCTION

Individuals with obesity have higher rates of mental health disorders, both singly and in combination, than individuals of normal weight. Mental health disorders may negatively impact weight loss treatment outcomes; however, little is known about the mental health burden of individuals using weight loss programs. The current study identifies common mental health diagnostic profiles among participants of MOVE!-the Veterans Health Administration's behavioral weight loss program.

MATERIAL AND METHODS

We used national VHA administrative data from fiscal year 2014 to identify veteran primary care patients who participated in at least one MOVE! session the previous year (n = 110,830). Using latent class analysis, we identified patient types (classes) characterized by the presence or absence of mental health diagnoses, both overall and stratified by age and gender.

RESULTS

There were several patient types (classes), including psychologically healthy, predominantly depressed, depressed with co-occurring mental disorders, and co-occurring mental disorders with no predominant psychological condition. Additional patient types were found in men of different ages. The majority of patients had at least one psychiatric disorder, particularly younger patients.

CONCLUSIONS

Efforts to improve patients' engagement in the MOVE! program may need to address barriers to care associated with mental health disorders or incorporate care for both obesity and mental health diagnoses in MOVE! A holistic approach may be particularly important for younger patients who have a higher comorbidity burden and longer care horizons. Future work may address if patient types found in the current study extend to non-VHA obesity treatment seekers.

Confronting the Post-ACA American Health Crisis: Designing Health Care for Value and Equity

The United States is in the midst of a health crisis marked by unprecedented 3-year declines in life expectancy. Addressing this national crisis requires alignment of public policies, public health policies, and health care policies, with the overarching aim of improving national health and health equity. Aligning national polices to support human needs provides a foundation for implementing post-Affordable Care Act national health care reform. Reform should start with the twin goals of improving health care value and equity. A focus on value, that is, outcomes and processes desired by patients, is critical to ensuring that resources are judiciously deployed to optimize individual and population health. A focus on health care equity ensures that the health care system is intentionally designed to minimize inequities in health care processes and outcomes, particularly for member of socially disadvantaged groups. All sectors related to the health care system-from policies and payment mechanisms to delivery design, measurement, patient engagement/democratization, training, and research-should be tightly aligned with improving health care value and equity during this next era of health care reform.

The ENGAGE-2 study: Engaging self-regulation targets to understand the mechanisms of behavior change and improve mood and weight outcomes in a randomized controlled trial (Phase 2)

Despite evidence for effective integrated behavior therapy for treating comorbid obesity and depression, treatment response is highly variable and the underlying neurobiological mechanisms remain unknown. This hampers efforts to identify mechanistic targets in order to optimize treatment precision and potency. Funded within the NIH Science of Behavior Change (SOBC) Research Network, the 2-phased ENGAGE research project applies an experimental precision medicine approach to address this gap. The Phase 1 study focused on demonstrating technical feasibility, target engagement and potential neural mechanisms of responses to an integrated behavior therapy. This therapy combines a video-based behavioral weight loss program and problem-solving therapy for depression, with as-needed intensification of antidepressant medications, and its clinical effectiveness was demonstrated within a parent randomized clinical trial. Here, we describe the ENGAGE Phase 2 (ENGAGE-2) study protocol which builds on Phase 1 in 2 ways: (1) pilot testing of an motivational interviewing-enhanced, integrated behavior therapy in an independent, primarily minority patient sample, and (2) evaluation of a priori defined neural targets, specifically the negative affect (threat and sadness) circuits which demonstrated engagement and malleability in Phase 1, as mediators of therapeutic outcomes. Additionally, the Phase 2 study includes a conceptual and methodological extension to explore the role of microbiome-gut-brain and systemic immunological pathways in integrated behavioral treatment of obesity and depression. This protocol paper documents the conceptualization, design and the transdisciplinary methodologies in ENGAGE-2, which can inform future clinical and translational research in experimental precision medicine for behavior change and chronic disease management. Trial registration: ClinicalTrials.gov #NCT 03,841,682.

Food and mood: how do diet and nutrition affect mental wellbeing?

Poor nutrition may be a causal factor in the experience of low mood, and improving diet may help to protect not only the physical health but also the mental health of the population, say Joseph Firth and colleagues

First-Year Economic and Quality of Life Effects of the RAINBOW Intervention to Treat Comorbid Obesity and Depression

OBJECTIVE

Obesity and depression are prevalent and often co-occurring conditions in the United States. The Research Aimed at Improving Both Mood and Weight (RAINBOW) randomized trial demonstrated the effectiveness of an integrated intervention for adults with both conditions. Characterizing the intervention's economic effects is important for broader dissemination and implementation.

METHODS

This study evaluated the cost (2018 US dollars) and health-related quality of life (HRQoL) impacts during RAINBOW's first year, comparing intervention (n = 204) and usual-care groups (n = 205). Outcomes included intervention delivery costs, differential changes in antidepressant medication spending compared with the pretrial year, differential changes in medical services spending compared with the pretrial year, and HRQoL changes from baseline using Euroqol-5D US utility weights.

RESULTS

RAINBOW's 1-year delivery cost per person was $2,251. Compared with usual care, annual antidepressant medication days increased more (38 days [95% CI: 4 to 72]; P = 0.027). Annual antidepressant medication spending had a larger, nonsignificant increase ($89 [95% CI: -$20 to $197]; P = 0.109). Annual spending on medical care services had a smaller, nonsignificant decrease (-$54 [95% CI: -$832 to $941]; P = 0.905). HRQoL had a nonsignificant increase (0.011 [95% CI: -0.025 to 0.047]; P = 0.546).

CONCLUSIONS

The RAINBOW intervention's economic value will depend on how its 1-year improvements in obesity and depression translate into long-term reduced morbidity, delayed mortality, or averted costs.

Variability in engagement and progress in efficacious integrated collaborative care for primary care patients with obesity and depression: Within-treatment analysis in the RAINBOW trial

INTRODUCTION

The RAINBOW randomized clinical trial validated the efficacy of an integrated collaborative care intervention for obesity and depression in primary care, although the effect was modest. To inform intervention optimization, this study investigated within-treatment variability in participant engagement and progress.

METHODS

Data were collected in 2014-2017 and analyzed post hoc in 2018. Cluster analysis evaluated patterns of change in weekly self-monitored weight from week 6 up to week 52 and depression scores on the Patient Health Questionnaire-9 (PHQ-9) from up to 15 individual sessions during the 12-month intervention. Chi-square tests and ANOVA compared weight loss and depression outcomes objectively measured by blinded assessors to validate differences among categories of treatment engagement and progress defined based on cluster analysis results.

RESULTS

Among 204 intervention participants (50.9 [SD, 12.2] years, 71% female, 72% non-Hispanic White, BMI 36.7 [6.9], PHQ-9 14.1 [3.2]), 31% (n = 63) had poor engagement, on average completing self-monitored weight in <3 of 46 weeks and <5 of 15 sessions. Among them, 50 (79%) discontinued the intervention by session 6 (week 8). Engaged participants (n = 141; 69%) self-monitored weight for 11-22 weeks, attended almost all 15 sessions, but showed variable treatment progress based on patterns of change in self-monitored weight and PHQ-9 scores over 12 months. Three patterns of weight change (%) represented minimal weight loss (n = 50, linear β1 = -0.06, quadratic β2 = 0.001), moderate weight loss (n = 61, β1 = -0.28, β2 = 0.002), and substantial weight loss (n = 12, β1 = -0.53, β2 = 0.005). Three patterns of change in PHQ-9 scores represented moderate depression without treatment progress (n = 40, intercept β0 = 11.05, β1 = -0.11, β2 = 0.002), moderate depression with treatment progress (n = 20, β0 = 12.90, β1 = -0.42, β2 = 0.006), and milder depression with treatment progress (n = 81, β0 = 7.41, β1 = -0.23, β2 = 0.003). The patterns diverged within 6-8 weeks and persisted throughout the intervention. Objectively measured weight loss and depression outcomes were significantly worse among participants with poor engagement or poor progress on either weight or PHQ-9 than those showing progress on both.

CONCLUSIONS

Participants demonstrating poor engagement or poor progress could be identified early during the intervention and were more likely to fail treatment at the end of the intervention. This insight could inform individualized and timely optimization to enhance treatment efficacy.

TRIAL REGISTRATION

ClinicalTrials.gov# NCT02246413.

Effect of an Intervention for Obesity and Depression on Patient-Centered Outcomes: An RCT

INTRODUCTION

An integrated collaborative care intervention was successful for treating comorbid obesity and depression. The effect of the integrated intervention on secondary outcomes of quality of life and psychosocial functioning were examined, as well as whether improvements in these secondary outcomes were correlated with improvements in the primary outcomes of weight and depressive symptoms.

STUDY DESIGN

This RCT compared an integrated collaborative care intervention for obesity and depression to usual care. Data were analyzed in 2018.

SETTING/PARTICIPANTS

Adult primary care patients (n=409) with a BMI ≥30 (≥27 if Asian) and 9-Item Patient Health Questionnaire score ≥10 were recruited from September 30, 2014 to January 12, 2017 from primary care clinics in Northern California.

INTERVENTION

The 12-month intervention integrated a behavioral weight loss program and problem-solving therapy with as-needed antidepressant medications for depression.

MAIN OUTCOME MEASURES

A priori secondary outcomes included health-related quality of life (Short Form-8 Health Survey), obesity-specific quality of life (Obesity-Related Problems Scale), sleep disturbance and sleep-related impairment (Patient-Reported Outcomes Measurement Information System), and functional disability (Sheehan Disability Scale) at baseline and 6 and 12 months.

RESULTS

Participants randomized to the intervention experienced significantly greater improvements in obesity-specific problems, mental health-related quality of life, sleep disturbance, sleep-related impairment, and functional disability at 6 months but not 12 months. Improvements in obesity-related problems (β=0.01, 95% CI=0.01, 0.02) and sleep disturbance (β= -0.02, 95% CI= -0.04, 0) were associated with lower BMI. Improvements in the physical (β= -0.01, 95% CI= -0.01, 0) and mental health components (β= -0.02, 95% CI= -0.03, -0.02) of the Short Form-8 Health Survey as well as sleep disturbance (β=0.01, 95% CI=0.01, 0.02) and sleep-related impairment (β=0.01, 95% CI=0, 0.01) were associated with fewer depressive symptoms.

CONCLUSIONS

An integrated collaborative care intervention for obesity and depression that was shown previously to improve weight and depressive symptoms may also confer benefits for quality of life and psychosocial functioning over 6 months.

TRIAL REGISTRATION

This study is registered at clinicaltrials.gov NCT02246413.

Development of a Tailored Behavioral Weight Loss Program for Veterans With PTSD (MOVE!+UP): A Mixed-Methods Uncontrolled Iterative Pilot Study

PURPOSE

Veterans with post-traumatic stress disorder (PTSD) lose less weight in the Veterans Affairs (VA) weight management program (MOVE!), so we developed MOVE!+UP.

DESIGN

Single-arm pre-post pilot to iteratively develop MOVE!+UP (2015-2018).

SETTING

Veterans Affairs Medical Center.

PARTICIPANTS

Overweight Veterans with PTSD (5 cohorts of n = 5-11 [N = 44]; n = 39 received ≥1 MOVE+UP session, with cohorts 1-4 [n = 31] = "Development" and cohort 5 [n = 8] = "Final" MOVE!+UP).

INTERVENTION

MOVE!+UP weight management for Veterans with PTSD modified after each cohort. Final MOVE!+UP was coled by a licensed clinical psychologist and Veteran peer counselor in 16 two-hour in-person group sessions and 2 individual dietician visits. Sessions included general weight loss support (eg, behavioral monitoring with facilitator feedback, weekly weighing), cognitive-behavioral skills to address PTSD-specific barriers, and a 30-minute walk to a nearby park.

MEASURES

To inform post-cohort modifications, we assessed weight, PTSD, and treatment targets (eg, physical activity, diet), and conducted qualitative interviews.

ANALYSIS

Baseline to 16-week paired t tests and template analysis.

RESULTS

Development cohorts suggested improvements (eg, additional sessions and weight loss information, professional involvement) and did not lose weight (mean [M] = 1.8 lbs (standard deviation [SD] = 8.2); P = .29. Conversely, the final cohort reported high satisfaction and showed meaningful weight (M = -14 pounds [SD = 3.7] and 71% lost ≥5% baseline weight) and PTSD (M = -17.9 [SD = 12.2]) improvements, P < .05.

CONCLUSIONS

The comprehensive, 16-week, in-person, cofacilitated Final MOVE!+UP was acceptable and may improve the health of people with PTSD. Iterative development likely produced a patient-centered intervention, needing further testing.

Prenatal Depression and Diet Quality During Pregnancy

BACKGROUND

Maternal nutrition during pregnancy has a significant effect on the health of the offspring and mother, highlighting the need for identifying factors that may affect diet during pregnancy. Research in nonpregnant and pregnant populations suggest depression may play a role.

OBJECTIVE

To investigate the relationship between prenatal depression and diet quality during pregnancy overall and by race/ethnicity and to explore the relationships between prenatal depression and the 12 Healthy Eating Index 2010 dietary components.

DESIGN

A cross-sectional secondary analysis of a cohort study of Kaiser Permanente Northern California women entering prenatal care between October 2011 and April 2013.

PARTICIPANTS/SETTING

Participants included 1,160 adult pregnant women.

MAIN OUTCOME MEASURES

Poor diet quality was defined as a Healthy Eating Index 2010 score in the lowest quartile.

STATISTICAL ANALYSES PERFORMED

Logistic regression was used to assess the relationship between prenatal depression (defined as a depression diagnosis, Patient Health Questionnaire score of 10 or greater or antidepressant medication dispensing between the last menstrual period and completion of the food frequency questionnaire) and poor diet quality overall and by race/ethnicity. Relationships between prenatal depression and each of the 12 Healthy Eating Index 2010 dietary components were assessed using t-tests and linear regression analyses.

RESULTS

One hundred fifty-nine (14%) participants had prenatal depression. Women with prenatal depression had nearly two times the odds of poor diet quality (odds ratio 1.80, 95% CI 1.23 to 2.60) compared with women without prenatal depression, after adjusting for potential confounders. Differences emerged by race/ethnicity; after adjusting for potential confounders the adjusted odds of poor diet quality were significant only among Hispanic women. Hispanic women with prenatal depression had an increased odds of poor diet quality compared with Hispanic women without prenatal depression (odds ratio 2.66, 95% CI 1.15 to 6.06). Women with prenatal depression had a higher consumption of empty calories (from solid fats, alcohol, and added sugars; threshold for counting alcohol >13 g/1,000 kcal) (P=0.01) and lower consumption of greens and beans (P<0.05), total fruit (P<0.01), and whole fruit (P<0.01), compared with women without prenatal depression. Except for empty calories, these findings remained after adjusting for potential confounders.

CONCLUSIONS

Study findings suggest that women with prenatal depression are at a higher risk of poor diet quality compared with women without prenatal depression, and the relationship is stronger among Hispanic women. Nutrition counseling interventions for women with depression should consider the use of culturally sensitive materials and target limiting empty calories from solid fats, alcohol, and added sugars and encourage eating more greens, beans, and fruit.

Lifestyle modifications and pharmacological approaches to improve sexual function and satisfaction in men with spinal cord injury: a narrative review

STUDY DESIGN

A narrative review describing various components of sexual dysfunction in men with spinal cord injury (SCI), as well as addressing potential therapeutic approaches.

OBJECTIVES

Restoration of sexual function is considered one of the most important health priorities for individuals with SCI. The purpose of this review is to provide information regarding the factors that are less appreciated when considering changes to sexual function in men with SCI. We also propose therapeutic approaches, with a focus on lifestyle modifications, which have been shown to improve sexual function.

METHODS

A literature search was performed and limited evidence for therapeutic approaches in individuals with SCI was supplemented by consistent findings from the able-bodied population.

RESULTS

We evaluated the less addressed factors known to contribute to sexual dysfunction in men with SCI, including hormonal influences (i.e., testosterone deficiency, thyroid hormone, and cortisol), psychological factors (i.e., pain, fatigue, depression, and body image), and secondary SCI complications (i.e., urinary tract infection, pressure sores, and autonomic dysreflexia). To address these factors beyond standard medical treatments for sexual dysfunction, options include physical activity/exercise, diet, and specific medications for symptom relief (i.e., testosterone replacement therapy and selective serotonin reuptake inhibitors for depression).

CONCLUSIONS

Physical activity's potential application, efficacy across multiple aspects of sexuality, and the lack of side effects, suggests that long-term exercise is a viable solution to directly or indirectly improve sexual function in males with SCI. Diet and supplemental medications may further promote body composition changes, which more broadly affect sexuality.