State versus trait weight, shape, and eating concerns: Disentangling influence on eating behaviors among sexual minority women

Lifetime and Daily Weight Stigma among Higher Weight Sexual Minority Women: Links to Daily Weight-based Concerns, Avoidance, and Negative Affect

Background

Weight stigma is associated with a range of adverse health outcomes (e.g., disordered eating). Women, sexual minorities, and higher-weight individuals are at increased risk of experiencing weight stigma, but little is known about its influence on emotions, cognitions, and behaviors in real-world contexts, particularly among multiply marginalized individuals such as higher-weight sexual minority women (SMW). The current study examined how lifetime and daily weight stigma experiences relate to momentary weight/shape concerns, size-based avoidance, and negative affect in this population.

Methods

Fifty-five higher-weight (BMI > 25 kg/m2) SMW completed a baseline survey and a five-day Ecological Momentary Assessment protocol (five prompts per day) assessing weight stigma events, weight/shape concerns, size-based avoidance, and negative affect.

Results

Greater frequency of lifetime weight stigma experiences was significantly associated with greater odds of engaging in size-based avoidance at least once during the 5-day period. Reporting momentary weight stigma events at any given prompt was significantly associated with greater odds of reporting momentary weight/shape concerns, but not negative affect, at the same prompt. Greater frequency of lifetime weight stigma experiences was also marginally associated with greater odds of reporting momentary weight/shape concerns at any given prompt.

Conclusions

Both lifetime and momentary experiences of weight stigma are linked to negative consequences (e.g., weight/shape concerns, size-based avoidance) among higher-weight SMW. Although structural interventions are needed to reduce weight stigma at its source, individual interventions can help higher-weight SMW to cope with weight stigma in ways that may reduce its negative consequences.

Association of weight and shape concern with weight change and weight-related behaviors in behavioral weight loss treatment

Weight and shape concern (WSC) is a facet of negative body image that is common among individuals with overweight/obesity seeking behavioral weight loss treatment (BWL), but remains understudied. This secondary analysis evaluates associations between WSC, weight change, and weight-related behaviors among individuals in a 24-week BWL. Adults (n = 32) with body mass index 25-50 kg/m2 completed a baseline WSC questionnaire, measured weight at 12 and 24 weeks, measured physical activity via accelerometer, and completed 24-hour dietary recalls. Adherence to self-monitoring dietary intake and weight were assessed. A series of linear mixed models were used to evaluate associations between baseline WSC and weight change, as well as weight-related behaviors. Results revealed no significant effect of WSC on weight change. There were significant WSC x time interactions, such that those rating WSC "very important" decreased self-weighing and the "low importance" group decreased their caloric intake during treatment. The "pretty important" group had greater minutes of activity than the "low importance" group. Findings indicated that WSC may impact weight-related behaviors that contribute to BWL success. This trial was pre-registered on ClinicalTrials.gov (NCT03739151).

Do appearance comparisons mediate the effects of thinspiration and fitspiration on body dissatisfaction, happiness, and disordered eating urges in women's daily lives?

We examined whether thinspo and fitspo exposure predicted women's body dissatisfaction (BD), happiness, and disordered eating (DE) urges (binge-eating/purging, restrictive eating, and exercise) in daily life. A further aim was to assess whether these effects were stronger for thinspo versus fitspo exposure and whether upward appearance comparisons mediated the effect of thinspo-fitspo exposure on BD, happiness, and DE urges. Participants (N = 380 women) completed baseline measures and a 7-day ecological momentary assessment (EMA) investigating state-based experiences of thinspo-fitspo exposure, appearance comparisons, BD, happiness, and DE urges. Multilevel analyses revealed that thinspo-fitspo exposure was associated with greater BD and DE urges (but unrelated to happiness) at the same EMA time point. However, there was no association between thinspo-fitspo exposure and BD, happiness, and DE urges at the next EMA time-point. Thinspo relative to fitspo exposure was associated with greater BD (but unrelated to happiness and DE urges) at the same EMA time-point. The proposed mediation models were not supported in time-lagged analyses; such that upward appearance comparisons did not mediate the effects of thinspo-fitspo exposure on BD, happiness, and DE urges. Current findings provide novel micro-longitudinal data on the potentially direct detrimental effects of thinspo-fitspo exposure on women's daily lives.

Affective responses to overeating episodes in women participating in a behavioral weight loss program

BACKGROUND

Much research has focused on precursors to dietary lapses in weight loss programs, but less is known about how individual responses to lapses may influence future non-adherence and program success. The current study examined affective responses to overeating lapses and their influence on subsequent overeating and overall weight loss.

METHODS

Women (n = 60) with overweight or obesity (BMI (mean ± SD): 34.3 ± 3.9 kg/m²; age: 48.1 ± 10.1 years) participated in a 3-month group behavioral weight loss intervention (BWLI). At baseline and 3 months, participants completed anthropometric assessments and a 10-day ecological momentary assessment protocol sent 5 times per day reporting on overeating and affect (stress, shame, anxiety, and feeling good about oneself). Across time points, multilevel models were used to examine affective responses to overeating and to predict likelihood of subsequent overeating. Linear regression models were used to examine the effect of affective responses to overeating (at baseline and collapsed across time points) on weight loss.

RESULTS

Following self-reported overeating episodes, compared to non-overeating episodes, feeling good about oneself decreased. These decreases lessened with time from overeating. Overeating predicted subsequent overeating episodes, with decreases in feeling good about oneself following overeating marginally predicting increased likelihood (p = 0.065). Neither overeating frequency at baseline nor change in overeating frequency predicted weight loss; however, greater decreases in anxiety following overeating were associated with less weight loss.

CONCLUSIONS

Self-reported overeating during a BWLI was associated with negative affective responses and may have increased the likelihood of subsequent overeating, but did not affect overall weight loss in this sample.

Comparison of Medical Management versus Bariatric Surgery for Obesity Management: Effects on Sexual Function

Both bariatric surgery and medical modification approaches to weight loss for individuals with obesity have been evaluated for their impacts on sexual health, however, a comparison between these interventions has not been undertaken. A convenience sample of 52 females were recruited from community medical and surgical weight loss clinics to participate; 25 received medical management that consisted of dietary guidance and exercise training, and 27 received bariatric surgery. Participants completed self-report questionnaires before and after treatment that examined sexual functioning, sexual satisfaction, relationship satisfaction, depression, anxiety, and body esteem. Sexual functioning decreased in both groups regardless of weight loss approach, p = .037. Sexual satisfaction increased for both groups, p = .005, with significantly greater improvements seen in the medical management group, p = .038. Measures of sexual desire, arousal, and pain did not change after treatment, and there were no group or time effects on relationship satisfaction, depressive symptoms, or body esteem. Lubrication and orgasm function decreased over time for both groups. These results highlight that sexual satisfaction can improve with either weight loss approach, even when sexual function decreases.