Michele ("Shelley") L. Patel, PhD is a postdoctoral fellow in cardiovascular disease prevention at the Stanford Prevention Research Center. She completed her undergraduate studies at Duke University in 2010, receiving a BA in Psychology and a certificate in Markets & Management. Dr. Patel received her PhD in Clinical Psychology from Duke in 2018 and completed her clinical psychology internship at the VA Palo Alto Health Care System, specializing in behavioral medicine.
Primary Research Interests:
-- Conducting and evaluating digital health interventions for obesity
-- Improving engagement in self-monitoring and other behavioral intervention strategies
-- Examining the impact of psychosocial factors (e.g., health literacy, stress) on treatment success
New research: Patel, M. L., Hopkins, C. M., Brooks, T. L., & Bennett, G. G. (2019). Comparing self-monitoring strategies for weight loss in a smartphone app: Randomized controlled trial. JMIR mHealth and uHealth. http://dx.doi.org/10.2196/12209.
Honors & Awards
Outstanding Dissertation Award, Society of Behavioral Medicine (2019)
Aleane Webb Dissertation Research Fellowship, The Graduate School, Duke University (2017)
Dissertation Research Award, American Psychological Association (2016)
E. Bayard Halsted Scholarship (full tuition), The Graduate School, Duke University (2016)
George A. Bray Master's Thesis Award, The Obesity Society (2015)
Karl E. Zener Award for Outstanding Performance of a Major in Psychology, Duke University (2010)
Boards, Advisory Committees, Professional Organizations
Board of Directors Member, Society of Behavioral Medicine (2020 - Present)
Member, American Psychological Association (2016 - Present)
Member, The Obesity Society (2014 - Present)
Member, Society of Behavioral Medicine (2013 - Present)
Doctor of Philosophy, Duke University (2018)
Internship, Clinical Psychology, VA Palo Alto Health Care System (2018)
Master of Arts, Duke University (2014)
Bachelor of Arts, Duke University (2010)
Comparing Self-Monitoring Strategies for Weight Loss in a Smartphone App: Randomized Controlled Trial.
JMIR mHealth and uHealth
2019; 7 (2): e12209
BACKGROUND: Self-monitoring of dietary intake is a valuable component of behavioral weight loss treatment; however, it declines quickly, thereby resulting in suboptimal treatment outcomes.OBJECTIVE: This study aimed to examine a novel behavioral weight loss intervention that aims to attenuate the decline in dietary self-monitoring engagement.METHODS: GoalTracker was an automated randomized controlled trial. Participants were adults with overweight or obesity (n=105; aged 21-65 years; body mass index, BMI, 25-45 kg/m2) and were randomized to a 12-week stand-alone weight loss intervention using the MyFitnessPal smartphone app for daily self-monitoring of either (1) both weight and diet, with weekly lessons, action plans, and feedback (Simultaneous); (2) weight through week 4, then added diet, with the same behavioral components (Sequential); or (3) only diet (App-Only). All groups received a goal to lose 5% of initial weight by 12 weeks, a tailored calorie goal, and automated in-app reminders. Participants were recruited via online and offline methods. Weight was collected in-person at baseline, 1 month, and 3 months using calibrated scales and via self-report at 6 months. We retrieved objective self-monitoring engagement data from MyFitnessPal using an application programming interface. Engagement was defined as the number of days per week in which tracking occurred, with diet entries counted if ≥800 kcal per day. Other assessment data were collected in-person via online self-report questionnaires.RESULTS: At baseline, participants (84/100 female) had a mean age (SD) of 42.7 (11.7) years and a BMI of 31.9 (SD 4.5) kg/m2. One-third (33/100) were from racial or ethnic minority groups. During the trial, 5 participants became ineligible. Of the remaining 100 participants, 84% (84/100) and 76% (76/100) completed the 1-month and 3-month visits, respectively. In intent-to-treat analyses, there was no difference in weight change at 3 months between the Sequential arm (mean -2.7 kg, 95% CI -3.9 to -1.5) and either the App-Only arm (-2.4 kg, -3.7 to -1.2; P=.78) or the Simultaneous arm (-2.8 kg, -4.0 to -1.5; P=.72). The median number of days of self-monitoring diet per week was 1.9 (interquartile range [IQR] 0.3-5.5) in Sequential (once began), 5.3 (IQR 1.8-6.7) in Simultaneous, and 2.9 (IQR 1.2-5.2) in App-Only. Weight was tracked 4.8 (IQR 1.9-6.3) days per week in Sequential and 5.1 (IQR 1.8-6.3) days per week in Simultaneous. Engagement in neither diet nor weight tracking differed between arms.CONCLUSIONS: Regardless of the order in which diet is tracked, using tailored goals and a commercial mobile app can produce clinically significant weight loss. Stand-alone digital health treatments may be a viable option for those looking for a lower intensity approach.TRIAL REGISTRATION: ClinicalTrials.gov NCT03254953; https://clinicaltrials.gov/ct2/show/NCT03254953 (Archived by WebCite at http://www.webcitation.org/72PyQrFjn).
View details for PubMedID 30816851
Testing the effectiveness of physical activity advice delivered via text messaging vs. human phone advisors in a Latino population: The On The Move randomized controlled trial design and methods.
Contemporary clinical trials
Physical inactivity is a key risk factor for a range of chronic diseases and conditions, yet, approximately 50% of U.S. adults fall below recommended levels of regular aerobic physical activity (PA). This is particularly true for ethnic minority populations such as Latino adults for whom few culturally adapted programs have been developed and tested. Text messaging (SMS) represents a convenient and accessible communication channel for delivering targeted PA information and support, but has not been rigorously evaluated against standard telehealth advising programs. The objective of the On The Move randomized controlled trial is to test the effectiveness of a linguistically and culturally targeted SMS PA intervention (SMS PA Advisor) versus two comparison conditions: a) a standard, staff-delivered phone PA intervention (Telephone PA Advisor) and b) an attention-control arm consisting of a culturally targeted SMS intervention to promote a healthy diet (SMS Nutrition Advisor). The study sample (N = 350) consists of generally healthy, insufficiently active Latino adults ages 35 years and older living in five northern California counties. Study assessments occur at baseline, 6, and 12 months, with a subset of participants completing 18-month assessments. The primary outcome is 12-month change in walking, and secondary outcomes include other forms of PA, assessed via validated self-report measures and supported by accelerometry, and physical function and well-being variables. Potential mediators and moderators of intervention success will be explored to better determine which subgroups do best with which type of intervention. Here we present the study design and methods, including recruitment strategies and yields. Trial Registration: clinicaltrial.gov Identifier = NCT02385591.
View details for DOI 10.1016/j.cct.2020.106084
View details for PubMedID 32659437
Weight Perceptions and Weight Loss Attempts: Military Service Matters.
INTRODUCTION: People who do not perceive themselves as overweight or obese are less likely to use weight loss treatments. However, little is known about weight perceptions and their association with weight loss attempts among people who have served in the military. They represent a special population with regard to weight perceptions as military personnel must meet strict weight standards to remain in military service.MATERIALS AND METHODS: Using data from the U.S.-based 2013-2014 and 2015-2016 National Health and Nutrition Examination Surveys, we fit logistic regression models to determine whether people with overweight or obesity were: (1) more or less likely to underestimate their weight if they reported military service and (2) less likely to attempt weight loss if they underestimated their weight (stratifying by military status). Estimates were adjusted for sociodemographic factors, including objective weight class, gender, age, race/ethnicity, income ratio, comorbidities, and education. This work received exempt status from the Stanford University institutional review board.RESULTS: Among 6,776 participants, those reporting military service had higher odds of underestimating their weight compared to those not reporting military service [OR (odds ratio): 1.44; 95% confidence interval (CI): 1.15, 1.79]. Underestimating weight was associated with lower odds of attempting weight loss among those reporting military service (OR: 0.20; CI: 0.11, 0.36) and those not reporting military service (OR: 0.27; CI: 0.22, 0.34).CONCLUSIONS: This study offers the new finding that underestimating weight is more likely among people reporting military service compared to those not reporting military service. Findings are consistent with past work demonstrating that underestimating weight is associated with a lower likelihood of pursuing weight loss. To combat weight misperceptions, clinicians may need to spend additional time discussing weight-related perceptions and beliefs with patients. The present findings suggest such conversations may be especially important for people reporting military service. Future research should be designed to understand the effects of correcting weight misperceptions. This work would advance the science of weight management and offer ways to increase weight loss treatment engagement, prevent chronic conditions, and improve health outcomes, especially among people reporting military service.
View details for DOI 10.1093/milmed/usz413
View details for PubMedID 31822913
Consistent self-monitoring in a commercial app-based intervention for weight loss: results from a randomized trial.
Journal of behavioral medicine
Self-monitoring is the strongest predictor of success in lifestyle interventions for obesity. In this secondary analysis of the GoalTracker trial, we describe outcomes of consistently self-monitoring in a standalone weight loss intervention. The 12-week intervention focused on daily self-monitoring of diet and/or body weight in a commercial app (MyFitnessPal). Participants (N=100; 21-65years; BMI 25-45kg/m2) were categorized as Consistent Trackers if they tracked ≥6 out of 7days for at least 75% of the targeted weeks. One-fourth of participants were Consistent Trackers. This subset was more likely to be married or living with a partner, be non-Hispanic White, and have higher health literacy than Inconsistent Trackers (ps<.05). Consistent tracking was associated with greater weight change than inconsistent tracking at 1month (mean difference [95% CI] -1.11kg [-2.12, -0.10]), 3months (-2.42kg [-3.80, -1.04]), and 6months (-2.13kg [-3.99, -0.27]). Over 3 times as many Consistent Trackers as Inconsistent Trackers achieved ≥5% weight loss at 3months (48 vs. 13%) and at 6months (54 vs. 15%; ps<.001). Though causality cannot be determined by the present study, tracking weight and/or diet nearly every day per week for 12weeks in a commercial app may serve as an effective strategy for weight loss. Strategies are needed to promote greater consistency in tracking.
View details for DOI 10.1007/s10865-019-00091-8
View details for PubMedID 31396820
Early weight loss in a standalone mHealth intervention predicting treatment success
OBESITY SCIENCE & PRACTICE
2019; 5 (3): 231–37
Early weight loss is a strong predictor of longer-term and clinically meaningful weight loss but has not been studied in the context of mobile health ('mHealth') interventions.GoalTracker was a randomized trial among adults (21-65 years) with overweight or obesity comparing three 12-week standalone mHealth interventions for weight loss. All arms received a free commercial mobile app (MyFitnessPal) for daily self-monitoring of diet and/or weight and a goal to lose 5% of weight by 3 months. Collapsing across arms, this analysis examined participants with a 1-month weight (n = 84), categorizing them as either early responders (≥2% weight loss at 1 month) or early non-responders (<2% weight loss at 1 month).Early responders - 36% of participants - had greater per cent weight change at 3 months (-5.93% [95% confidence interval: -6.82%, -5.03%]) than early non-responders (-1.45% [-2.15%, -0.75%]), which was sustained at 6 months (-5.91% [-7.33%, -4.48%] vs. -1.28% [-2.37%, -0.19%]; ps < 0.0001). Over half (57%) of early responders achieved ≥5% weight loss at 3 months vs. 11% of early non-responders. At 4 weeks, self-monitoring frequency (weight/diet) was significantly greater among early responders, which continued across 12 weeks.Responding early to an mHealth treatment is associated with higher engagement and greater likelihood of achieving clinically meaningful weight loss.
View details for DOI 10.1002/osp4.329
View details for Web of Science ID 000472584400004
View details for PubMedID 31275596
View details for PubMedCentralID PMC6587307
Baseline Psychosocial and Demographic Factors Associated with Study Attrition and 12‐Month Weight Gain in the DIETFITS Trial
View details for DOI 10.1002/oby.22650
Motivational interviewing in eHealth and telehealth interventions for weight loss: A systematic review.
The alarming prevalence of adult obesity warrants consideration of treatments with broad reach; digital health interventions meet this need and have demonstrated efficacy for weight loss. One approach that can be delivered remotely is motivational interviewing - a counseling style that helps resolve ambivalence to change unhealthy behavior. This is the first review to systematically examine eHealth and telehealth interventions that incorporate motivational interviewing for weight loss. We searched four electronic databases (PubMed, Embase, PsycInfo, CINAHL) for publications from November 2009-May 2018. Included papers were weight loss RCTs conducted among adults with overweight or obesity that examined eHealth or telehealth interventions with motivational interviewing, compared to any type of treatment arm without it. Results were presented separately by comparison arm (control vs. active comparator). Sixteen papers (15 trials) were included. Twelve used telephone-based counseling to deliver motivational interviewing, two used email and phone, and one used online chats. When compared to a no-treatment control arm, the motivational interviewing arm was associated with greater weight loss on 6 of 11 occasions, but performed better than an active comparator on only 1 of 7 occasions. Retention and engagement were generally high, though few trials examined the relation with weight loss. No trial had high risk of bias, but five lacked power calculations and only two reported fidelity to motivational interviewing. Telephone-based interventions that incorporate motivational interviewing hold promise as effective obesity treatments. There is a dearth of evidence to support the use of motivational interviewing via eHealth, signaling a needed research area.
View details for DOI 10.1016/j.ypmed.2019.05.026
View details for PubMedID 31153917
A smoking cessation and pain management program for cancer survivors
JOURNAL OF CANCER SURVIVORSHIP
2018; 12 (6): 821–27
Many cancer survivors continue to smoke. Further, most survivors also report high levels of persistent pain and smoke in response to pain. The investigators tested the feasibility, acceptability, and preliminary efficacy of a smoking cessation program paired with a pain management program for cancer survivors.The investigators conducted a two-arm, wait-list randomized controlled pilot study in which they delivered a combined smoking cessation and pain management intervention.The investigators randomized 30 survivors (14 intervention and 16 wait-list control). Seventy-one percent of the survivors who received the intervention rated it as extremely useful (5 out of 5) in helping them quit smoking. Further, 86% would recommend the program to other survivors. Although we could not conduct inferential statistics, 14% of those in the intervention arm, compared to 6% in the control condition had biochemically validated cessation at 2-months post-randomization. Survivors in the intervention also reported less pain, had improvements in depressive symptoms, and better physical function than those in the control arm.Our pilot data suggest the feasibility, acceptability, and preliminary efficacy of this approach. The next step is to conduct a large randomized controlled trial to fully test the efficacy of the intervention.A combined smoking cessation and pain program might help improve both issues simultaneously.
View details for DOI 10.1007/s11764-018-0719-3
View details for Web of Science ID 000449874500011
View details for PubMedID 30328056
Health Literacy and Weight Change in a Digital Health Intervention for Women: A Randomized Controlled Trial in Primary Care Practice
JOURNAL OF HEALTH COMMUNICATION
2016; 21: 34–42
In the United States, 90 million adults have low health literacy. An important public health challenge is developing obesity treatment interventions suitable for those with low health literacy. The objective of this study was to examine differences in sociodemographic and clinical characteristics as well as weight and intervention engagement outcomes by health literacy. We randomized 194 participants to usual care or to the Shape Program intervention, a 12-month digital health treatment aimed at preventing weight gain among overweight and Class I obese Black women in primary care practice. We administered the Newest Vital Sign instrument to assess health literacy. More than half (55%) of participants had low health literacy, which was more common among those with fewer years of education and lower income. There was no effect of health literacy on 12-month weight change or on intervention engagement outcomes (completion of coaching calls and interactive voice response self-monitoring calls). Low health literacy did not preclude successful weight gain prevention in the Shape Program intervention. Goal-focused behavior change approaches like that used in Shape may be particularly helpful for treating and engaging populations with low health literacy.
View details for PubMedID 27043756
View details for PubMedCentralID PMC4935541
Electronic health (eHealth) interventions for weight management among racial/ethnic minority adults: a systematic review
2014; 15: 146–58
Electronic health (eHealth) interventions have demonstrated efficacy for weight management. However, little is known about their efficacy among racial/ethnic minority populations, in whom there is a disproportionate prevalence of obesity. This systematic review evaluated the efficacy of eHealth weight management interventions among overweight and obese racial/ethnic minority adults. We required that trial samples be comprised of at least 50% racial/ethnic minorities or report outcomes by race/ethnicity. We searched five electronic databases for trials conducted through June 2012. Six papers met our eligibility criteria. These studies provide suggestive evidence that eHealth interventions can produce low magnitude, short-term weight loss among racial/ethnic minorities. Trials were methodologically sound, with high retention and participant engagement. There was no evidence detailing the efficacy of mobile health approaches, although this area is promising given high utilization rates of mobile devices among racial/ethnic minorities. More evidence, particularly from longer-term trials, is necessary to demonstrate that eHealth intervention approaches can produce clinically meaningful (≥ 5% of initial body weight) weight loss among racial/ethnic minority populations.
View details for DOI 10.1111/obr.12218
View details for Web of Science ID 000341832700009
View details for PubMedID 25196411
The Effect of a "Maintain, Don't Gain" Approach to Weight Management on Depression Among Black Women: Results From a Randomized Controlled Trial
AMERICAN JOURNAL OF PUBLIC HEALTH
2014; 104 (9): 1766–73
We evaluated the effect of a weight gain prevention intervention (Shape Program) on depression among socioeconomically disadvantaged overweight and obese Black women.Between 2009 and 2012, we conducted a randomized trial comparing a 12-month electronic health-based weight gain prevention intervention to usual primary care at 5 central North Carolina community health centers. We assessed depression with the Patient Health Questionnaire (PHQ-8). We analyzed change in depression score from baseline to 12- and 18-month follow-up across groups with mixed models. We used generalized estimating equation models to analyze group differences in the proportion above the clinical threshold for depression (PHQ-8 score ≥ 10).At baseline, 20% of participants reported depression. Twelve-month change in depression scores was larger for intervention participants (mean difference = -1.85; 95% confidence interval = -3.08, -0.61; P = .004). There was a significant reduction in the proportion of intervention participants with depression at 12 months with no change in the usual-care group (11% vs 19%; P = .035). All effects persisted after we controlled for weight change and medication use. We saw similar findings at 18 months.The Shape Program, which includes no mention of mood, improved depression among socioeconomically disadvantaged Black women.
View details for PubMedID 25033150
View details for PubMedCentralID PMC4151935
Availability of and Ease of Access to Calorie Information on Restaurant Websites
2013; 8 (8): e72009
Offering calories on restaurant websites might be particularly important for consumer meal planning, but the availability of and ease of accessing this information are unknown.We assessed websites for the top 100 U.S. chain restaurants to determine the availability of and ease of access to calorie information as well as website design characteristics. We also examined potential predictors of calorie availability and ease of access.Eighty-two percent of restaurants provided calorie information on their websites; 25% presented calories on a mobile-formatted website. On average, calories could be accessed in 2.35±0.99 clicks. About half of sites (51.2%) linked to calorie information via the homepage. Fewer than half had a separate section identifying healthful options (46.3%), or utilized interactive meal planning tools (35.4%). Quick service/fast casual, larger restaurants, and those with less expensive entrées and lower revenue were more likely to make calorie information available. There were no predictors of ease of access.Calorie information is both available and largely accessible on the websites of America's leading restaurants. It is unclear whether consumer behavior is affected by the variability in the presentation of calorie information.
View details for PubMedID 23977193
Weight gain prevention among black women in the rural community health center setting: The Shape Program
BMC PUBLIC HEALTH
2012; 12: 305
Nearly 60% of black women are obese. Despite their increased risk of obesity and associated chronic diseases, black women have been underrepresented in clinical trials of weight loss interventions, particularly those conducted in the primary care setting. Further, existing obesity treatments are less effective for this population. The promotion of weight maintenance can be achieved at lower treatment intensity than can weight loss and holds promise in reducing obesity-associated chronic disease risk. Weight gain prevention may also be more consistent with the obesity-related sociocultural perspectives of black women than are traditional weight loss approaches.We conducted an 18-month randomized controlled trial (the Shape Program) of a weight gain prevention intervention for overweight black female patients in the primary care setting. Participants include 194 premenopausal black women aged 25 to 44 years with a BMI of 25-34.9 kg/m2. Participants were randomized either to usual care or to a 12-month intervention that consisted of: tailored obesogenic behavior change goals, self-monitoring via interactive voice response phone calls, tailored skills training materials, 12 counseling calls with a registered dietitian and a 12-month YMCA membership.Participants are followed over 18 months, with study visits at baseline, 6-, 12- and 18-months. Anthropometric data, blood pressure, fasting lipids, fasting glucose, and self-administered surveys are collected at each visit. Accelerometer data is collected at baseline and 12-months.At baseline, participants were an average of 35.4 years old with a mean body mass index of 30.2 kg/m2. Participants were mostly employed and low-income. Almost half of the sample reported a diagnosis of hypertension or prehypertension and 12% reported a diagnosis of diabetes or prediabetes. Almost one-third of participants smoked and over 20% scored above the clinical threshold for depression.The Shape Program utilizes an innovative intervention approach to lower the risk of obesity and obesity-associated chronic disease among black women in the primary care setting. The intervention was informed by behavior change theory and aims to prevent weight gain using inexpensive mobile technologies and existing health center resources. Baseline characteristics reflect a socioeconomically disadvantaged, high-risk population sample in need of evidence-based treatment strategies.The trial is registered with clinicaltrials.gov NCT00938535.
View details for DOI 10.1186/1471-2458-12-305
View details for Web of Science ID 000305278200001
View details for PubMedID 22537222
View details for PubMedCentralID PMC3439671