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4. Common Genetic Variation and Age of Onset of Anorexia Nervosa

Author

Watson, Hunna J., Thornton, Laura M., Yilmaz, Zeynep, Baker, Jessica H., Coleman, Jonathan R.I., Adan, Roger A.H., Alfredsson, Lars, Andreassen, Ole A., Ask, Helga, Berrettini, Wade H., Boehnke, Michael, Boehm, Ilka, Boni, Claudette, Buehren, Katharina, Bulant, Josef, Burghardt, Roland, Chang, Xiao, Cichon, Sven, Cone, Roger D., Courtet, Philippe, Crow, Scott, Crowley, James J., Danner, Unna N., de Zwaan, Martina, Dedoussis, George, DeSocio, Janiece E., Dick, Danielle M., Dikeos, Dimitris, Dina, Christian, Djurovic, Srdjan, Dmitrzak-Weglarz, Monika, Docampo-Martinez, Elisa, Duriez, Philibert, Egberts, Karin, Ehrlich, Stefan, Eriksson, Johan G., Escaramís, Geòrgia, Esko, Tõnu, Estivill, Xavier, Farmer, Anne, Fernández-Aranda, Fernando, Fichter, Manfred M., Föcker, Manuel, Foretova, Lenka, Forstner, Andreas J., Frei, Oleksandr, Gallinger, Steven, Giegling, Ina, Giuranna, Johanna, Gonidakis, Fragiskos, Gorwood, Philip, Gratacòs, Mònica, Guillaume, Sébastien, Guo, Yiran, Hakonarson, Hakon, Hauser, Joanna, Havdahl, Alexandra, Hebebrand, Johannes, Helder, Sietske G., Herms, Stefan, Herpertz-Dahlmann, Beate, Herzog, Wolfgang, Hinney, Anke, Hübel, Christopher, Hudson, James I., Imgart, Hartmut, Jamain, Stephanie, Janout, Vladimir, Jiménez-Murcia, Susana, Jones, Ian R., Julià, Antonio, Kalsi, Gursharan, Kaminská, Deborah, Kaprio, Jaakko, Karhunen, Leila, Kas, Martien J.H., Keel, Pamela K., Kennedy, James L., Keski-Rahkonen, Anna, Kiezebrink, Kirsty, Klareskog, Lars, Klump, Kelly L., Knudsen, Gun Peggy S., La Via, Maria C., Le Hellard, Stephanie, Leboyer, Marion, Li, Dong, Lilenfeld, Lisa, Lin, Bochao, Lissowska, Jolanta, Luykx, Jurjen, Magistretti, Pierre, Maj, Mario, Marsal, Sara, Marshall, Christian R., Mattingsdal, Morten, Meulenbelt, Ingrid, Micali, Nadia, Mitchell, Karen S., Monteleone, Alessio Maria, Monteleone, Palmiero, Myers, Richard, Navratilova, Marie, Ntalla, Ionna, O’Toole, Julie K., Ophoff, Roel A., Padyukov, Leonid, Pantel, Jacques, Papežová, Hana, Pinto, Dalila, Raevuori, Anu, Ramoz, Nicolas, Reichborn-Kjennerud, Ted, Ricca, Valdo, Ripatti, Samuli, Ripke, Stephan, Ritschel, Franziska, Roberts, Marion, Rotondo, Alessandro, Rujescu, Dan, Rybakowski, Filip, Scherag, André, Scherer, Stephen W., Schmidt, Ulrike, Scott, Laura J., Seitz, Jochen, Silén, Yasmina, Šlachtová, Lenka, Slagboom, P. Eline, Slof-Op ‘t Landt, Margarita C.T., Slopien, Agnieszka, Sorbi, Sandro, Świątkowska, Beata, Tortorella, Alfonso, Tozzi, Federica, Treasure, Janet, Tsitsika, Artemis, Tyszkiewicz-Nwafor, Marta, Tziouvas, Konstantinos, van Elburg, Annemarie A., van Furth, Eric F., Walton, Esther, Widen, Elisabeth, Zerwas, Stephanie, Zipfel, Stephan, Bergen, Andrew W., Boden, Joseph M., Brandt, Harry, Crawford, Steven, Halmi, Katherine A., Horwood, L. John, Johnson, Craig, Kaplan, Allan S., Kaye, Walter H., Mitchell, James E., Olsen, Catherine M., Pearson, John F., Pedersen, Nancy L., Strober, Michael, Werge, Thomas, Whiteman, David C., Woodside, D. Blake, Gordon, Scott, Maguire, Sarah, Larsen, Janne T., Parker, Richard, Petersen, Liselotte V., Jordan, Jennifer, Kennedy, Martin, Wade, Tracey D., Birgegård, Andreas, Lichtenstein, Paul, Landén, Mikael, Martin, Nicholas G., Mortensen, Preben Bo, Breen, Gerome, and Bulik, Cynthia M.

Published
2022
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8. Direct, indirect, and reciprocal associations between perfectionism, compulsive exercise and eating disorder pathology in adolescents with eating disorders.

Author

Adams, Vinola, Watson, Hunna J., Mazzucchelli, Trevor, Jones, Emily, Callaghan, Thomas, Bills, Elizabeth, and Egan, Sarah J.

Subjects
EXERCISE physiology, TREATMENT of eating disorders, COGNITIVE therapy, PERFECTIONISM (Personality trait), PATHOLOGY
Abstract

Background: There is a strong association between perfectionism and eating disorders. In a cognitive–behavioural model of compulsive exercise it has been suggested there are reciprocal associations between perfectionism, eating disorder pathology, and compulsive exercise. No study has examined if there is an indirect association between perfectionism and compulsive exercise through eating disorder pathology, which would inform a preliminary understanding of the cognitive–behavioural model of compulsive exercise. Methods: The sample included 301 adolescent females diagnosed with eating disorders (age M = 14.89, SD = 0.85, range 13–17). We tested models of direct and indirect associations of compulsive exercise in the relationship between perfectionism and eating disorder pathology, and direct and indirect associations of eating disorder pathology in the relationship between compulsive exercise and perfectionism. Results: Perfectionism was directly associated with eating disorder pathology and compulsive exercise. Perfectionism was indirectly associated with eating disorder pathology through compulsive exercise. Perfectionism also had an indirect association with compulsive exercise through eating disorder pathology. Discussion: The findings suggest it would be useful for future prospective research to examine the cognitive–behavioural model of compulsive exercise in adolescents with eating disorders. Compulsive exercise and perfectionism may be useful targets for future research to improve eating disorder treatment. Level of evidence Level V: Opinions of respected authorities, based on descriptive studies, narrative reviews, clinical experience, or reports of expert committees. [ABSTRACT FROM AUTHOR]

Published
2024
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16. Genome-wide association study identifies eight risk loci and implicates metabo-psychiatric origins for anorexia nervosa

Author

Watson, Hunna J., Yilmaz, Zeynep, Thornton, Laura M., Hübel, Christopher, Coleman, Jonathan R. I., Gaspar, Héléna A., Bryois, Julien, Hinney, Anke, Leppä, Virpi M., Mattheisen, Manuel, Medland, Sarah E., Ripke, Stephan, Yao, Shuyang, Giusti-Rodríguez, Paola, Anorexia Nervosa Genetics Initiative, Hanscombe, Ken B., Purves, Kirstin L., Eating Disorders Working Group of the Psychiatric Genomics Consortium, Adan, Roger A. H., Alfredsson, Lars, Ando, Tetsuya, Andreassen, Ole A., Baker, Jessica H., Berrettini, Wade H., Boehm, Ilka, Boni, Claudette, Perica, Vesna Boraska, Buehren, Katharina, Burghardt, Roland, Cassina, Matteo, Cichon, Sven, Clementi, Maurizio, Cone, Roger D., Courtet, Philippe, Crow, Scott, Crowley, James J., Danner, Unna N., Davis, Oliver S. P., de Zwaan, Martina, Dedoussis, George, Degortes, Daniela, DeSocio, Janiece E., Dick, Danielle M., Dikeos, Dimitris, Dina, Christian, Dmitrzak-Weglarz, Monika, Docampo, Elisa, Duncan, Laramie E., Egberts, Karin, Ehrlich, Stefan, Escaramís, Geòrgia, Esko, Tõnu, Estivill, Xavier, Farmer, Anne, Favaro, Angela, Fernández-Aranda, Fernando, Fichter, Manfred M., Fischer, Krista, Föcker, Manuel, Foretova, Lenka, Forstner, Andreas J., Forzan, Monica, Franklin, Christopher S., Gallinger, Steven, Giegling, Ina, Giuranna, Johanna, Gonidakis, Fragiskos, Gorwood, Philip, Mayora, Monica Gratacos, Guillaume, Sébastien, Guo, Yiran, Hakonarson, Hakon, Hatzikotoulas, Konstantinos, Hauser, Joanna, Hebebrand, Johannes, Helder, Sietske G., Herms, Stefan, Herpertz-Dahlmann, Beate, Herzog, Wolfgang, Huckins, Laura M., Hudson, James I., Imgart, Hartmut, Inoko, Hidetoshi, Janout, Vladimir, Jiménez-Murcia, Susana, Julià, Antonio, Kalsi, Gursharan, Kaminská, Deborah, Kaprio, Jaakko, Karhunen, Leila, Karwautz, Andreas, Kas, Martien J. H., Kennedy, James L., Keski-Rahkonen, Anna, Kiezebrink, Kirsty, Kim, Youl-Ri, Klareskog, Lars, Klump, Kelly L., Knudsen, Gun Peggy S., La Via, Maria C., Le Hellard, Stephanie, Levitan, Robert D., Li, Dong, Lilenfeld, Lisa, Lin, Bochao Danae, Lissowska, Jolanta, Luykx, Jurjen, Magistretti, Pierre J., Maj, Mario, Mannik, Katrin, Marsal, Sara, Marshall, Christian R., Mattingsdal, Morten, McDevitt, Sara, McGuffin, Peter, Metspalu, Andres, Meulenbelt, Ingrid, Micali, Nadia, Mitchell, Karen, Monteleone, Alessio Maria, Monteleone, Palmiero, Munn-Chernoff, Melissa A., Nacmias, Benedetta, Navratilova, Marie, Ntalla, Ioanna, O’Toole, Julie K., Ophoff, Roel A., Padyukov, Leonid, Palotie, Aarno, Pantel, Jacques, Papezova, Hana, Pinto, Dalila, Rabionet, Raquel, Raevuori, Anu, Ramoz, Nicolas, Reichborn-Kjennerud, Ted, Ricca, Valdo, Ripatti, Samuli, Ritschel, Franziska, Roberts, Marion, Rotondo, Alessandro, Rujescu, Dan, Rybakowski, Filip, Santonastaso, Paolo, Scherag, André, Scherer, Stephen W., Schmidt, Ulrike, Schork, Nicholas J., Schosser, Alexandra, Seitz, Jochen, Slachtova, Lenka, Slagboom, P. Eline, Slof-Op ‘t Landt, Margarita C. T., Slopien, Agnieszka, Sorbi, Sandro, Świątkowska, Beata, Szatkiewicz, Jin P., Tachmazidou, Ioanna, Tenconi, Elena, Tortorella, Alfonso, Tozzi, Federica, Treasure, Janet, Tsitsika, Artemis, Tyszkiewicz-Nwafor, Marta, Tziouvas, Konstantinos, van Elburg, Annemarie A., van Furth, Eric F., Wagner, Gudrun, Walton, Esther, Widen, Elisabeth, Zeggini, Eleftheria, Zerwas, Stephanie, Zipfel, Stephan, Bergen, Andrew W., Boden, Joseph M., Brandt, Harry, Crawford, Steven, Halmi, Katherine A., Horwood, L. John, Johnson, Craig, Kaplan, Allan S., Kaye, Walter H., Mitchell, James E., Olsen, Catherine M., Pearson, John F., Pedersen, Nancy L., Strober, Michael, Werge, Thomas, Whiteman, David C., Woodside, D. Blake, Stuber, Garret D., Gordon, Scott, Grove, Jakob, Henders, Anjali K., Juréus, Anders, Kirk, Katherine M., Larsen, Janne T., Parker, Richard, Petersen, Liselotte, Jordan, Jennifer, Kennedy, Martin, Montgomery, Grant W., Wade, Tracey D., Birgegård, Andreas, Lichtenstein, Paul, Norring, Claes, Landén, Mikael, Martin, Nicholas G., Mortensen, Preben Bo, Sullivan, Patrick F., Breen, Gerome, and Bulik, Cynthia M.

Published
2019
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21. Meta-Analysis of Randomized, Controlled Treatment Trials for Pediatric Obsessive-Compulsive Disorder

Author

Watson, Hunna J. and Rees, Clare S.

Abstract

Objective: To conduct a meta-analysis on randomized, controlled treatment trials of pediatric obsessive-compulsive disorder (OCD). Method: Studies were included if they employed randomized, controlled methodology and treated young people (19 years or under) with OCD. A comprehensive literature search identified 13 RCTs containing 10 pharmacotherapy to control comparisons (N = 1016) and five cognitive-behavioral therapy (CBT) to control comparisons (N = 161). Results: Random effects modeling yielded statistically significant pooled effect size (ES) estimates for pharmacotherapy (ES = 0.48, 95% CI = 0.36 to 0.61, p less than 0.00001) and CBT (ES = 1.45, 95% CI = 0.68 to 2.22, p = 0.002). The results were robust to publication bias. Conclusions: This is the first meta-analysis of treatment RCTs for pediatric OCD. CBT and pharmacotherapy were the only treatments effective beyond control in alleviating OCD symptoms. CBT showed a greater ES than pharmacotherapy. Previous meta-analyses that included uncontrolled trials exaggerated the efficacy of both treatments.

Published
2008
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24. Binge‐eating disorder with and without lifetime anorexia nervosa: A comparison of sociodemographic and clinical features.

Author

Pawar, Pratiksha S., Thornton, Laura M., Flatt, Rachael E., Sanzari, Christina M., Carrino, Emily A., Tregarthen, Jenna P., Argue, Stuart, Bulik, Cynthia M., and Watson, Hunna J.

Subjects
REGULATION of body weight, BINGE-eating disorder, AGE distribution, SEX distribution, AGE factors in disease, BULIMIA, DESCRIPTIVE statistics, RESEARCH funding, ANOREXIA nervosa, SOCIODEMOGRAPHIC factors, BODY mass index, ANXIETY, COMORBIDITY
Abstract

Objective: To compare individuals who have experienced binge‐eating disorder (BED) and anorexia nervosa (AN) (BED AN+) to those who have experienced BED and not AN (BED AN–). Method: Participants (N = 898) met criteria for lifetime BED and reported current binge eating. Approximately 14% had a lifetime diagnosis of AN. Analyses compared BED AN+ and BED AN– on sociodemographic variables and clinical history. Results: The presence of lifetime AN was associated with more severe eating disorder symptoms, including earlier onset, more frequent, more chronic, and more types of eating disorder behaviors over the lifetime, as well as a higher lifetime prevalence of bulimia nervosa (BN). Participants with lifetime AN reported being more likely to have received treatments for BED or BN, had significantly lower minimum, current, and maximum BMIs, had more severe general anxiety, and were significantly more likely to be younger and female. In the full sample, the lifetime prevalence of unhealthy weight control behaviors was high and treatment utilization was low, despite an average 15‐year history since symptom onset. Gastrointestinal disorders and comorbid anxiety, depression, and attention‐deficit/hyperactivity disorder symptoms were prevalent. Discussion: Individuals fared poorly on a wide array of domains, yet those with lifetime AN fared considerably more poorly. All patients with BED should be screened for mental health and gastrointestinal comorbidities and offered referral and treatment options. Public Significance: Individuals experiencing binge‐eating disorder have severe symptomology, but those who have experienced binge‐eating disorder and anorexia nervosa fare even more poorly. Our study emphasizes that patients with binge‐eating disorder would benefit from being screened for mental health and gastrointestinal comorbidities, and clinicians should consider history of unhealthy weight control behaviors to inform treatment and relapse prevention. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Course and predictors of eating disorder symptoms, anxiety symptoms, and pandemic‐related eating disorder concerns among adults with eating disorders during the first year of the COVID‐19 pandemic.

Author

Thompson, Katherine A., Hedlund, Elin L., Sun, Quan, Peat, Christine M., Goode, Rachel W., Termorshuizen, Jet D., Thornton, Laura M., Borg, Stina, van Furth, Eric F., Birgegård, Andreas, Bulik, Cynthia M., and Watson, Hunna J.

Subjects
PATIENT aftercare, SOCIAL support, TIME, SELF-evaluation, FOOD security, RISK assessment, SURVEYS, DESCRIPTIVE statistics, RESEARCH funding, ANXIETY, STAY-at-home orders, EATING disorders, COVID-19 pandemic, WORLD Wide Web, ADULTS
Abstract

Objective: The COVID‐19 pandemic and public health mitigation measures have negatively impacted individuals with eating disorders (ED). We evaluated changes in and predictors of ED symptoms, pandemic‐related ED concerns, and anxiety symptoms across the first 12 months of the COVID‐19 pandemic among individuals with self‐reported EDs in the United States (US), Sweden (SE), and the Netherlands (NL). Method: Participants in the US (N = 510), SE (N = 982), and NL (N = 510) completed an online survey assessing ED symptoms (binge eating, restriction, compensatory behaviors, and anxiety about being unable to exercise), general anxiety symptoms, and pandemic‐related ED concerns about accessing food, lack of structure and social support, being in a triggering environment, and food and treatment costs. In the US and NL, respondents completed surveys beginning April 2020 and continuing monthly for a year. In SE, respondents completed baseline surveys in May 2020, a six‐month follow‐up around December 2020, and a 12‐month follow‐up in May 2021. Results: Three patterns emerged: (1) a curvilinear course with the highest level of symptoms at baseline, declining through November 2020, and increasing through the rest of the year; (2) a linear declining course over time; and (3) a stable course with no changes. Worries about COVID‐19 infection, lockdown, concerns about lack of structure and social support, and concerns about accessing food consistent with one's recovery meal plan predicted increases in ED symptoms. Discussion: ED symptoms tracked with pandemic‐related concerns in people with EDs. Conceptualizing predictors of symptoms may inform therapy and public health resources that reduce the impact of pandemics on mental health. Public Significance: Our findings suggest that the COVID‐19 pandemic had negative impacts on people with eating disorders, including amplification of mental health symptoms and stressors around peak periods of infection and COVID‐19 restrictions. These findings inform medical providers, policy‐makers, and community‐based supports about the information and resource needs of this group to ensure efficient dissemination in future public health emergencies and during the ongoing COVID‐19 pandemic. [ABSTRACT FROM AUTHOR]

Published
2023
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34. Validity of the compulsive exercise test in regular exercisers

Author

Limburg, Karina, Bodill, Kate, Watson, Hunna J., Kane, Robert T., Hagger, Martin S., and Egan, Sarah J.

Subjects
psykologiset testit, syömishäiriöt, liikunta, pakko-oireinen häiriö
Abstract

Measurement of compulsive exercise is important for the study of eating pathology in individuals who regularly participate in sport and exercise. The current study examined the factor structure, internal consistency and validity of the compulsive exercise test (CET) in regular exercisers. Participants were recruited via the internet and from sport clubs (n = 313 adults; M = 32 years; 57% female). A three-factor model for the CET was supported which included the weight control exercise, avoidance and rule-driven behaviour, and mood improvement subscales (fit statistics for the three-factor model: χ2SB = 4.39; CFI = .95; NNFI = .94, RMSEA = .100, 95% CI: .093—.110, AIC = 656.92). The subscales lack of exercise enjoyment and exercise rigidity were not retained. All factors demonstrated acceptable internal consistency with Cronbach’s α = .77 to .91. The weight control exercise and avoidance and rule-driven behaviour subscales were significantly related to eating disorder symptoms. Given the association between CET subscales and eating disorder symptoms, the CET three-factor model may be informative when assessing eating pathology in individuals who regularly exercise. peerReviewed

Published
2021

45. Role of gender in depressive disorder outcome for individual and group cognitive-behavioral treatment

Author

Watson, Hunna J. and Nathan, Paula R.

Subjects
Depression, Mental -- Care and treatment, Depression, Mental -- Demographic aspects, Depression, Mental -- Patient outcomes, Cognitive therapy -- Usage, Psychotherapy -- Usage, Psychology and mental health
Abstract

Gender in cognitive-behavioral therapy (CBT) for outcome for depression has been inadequately examined in previous research. Thirty-five men and 55 women diagnosed with a depressive disorder according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV; American Psychiatric Association, 1994) completed individual CBT at an outpatient community mental health clinic and 56 men and 105 women completed group CBT. Depression severity was measured before treatment and at endpoint using the Beck Depression Inventory-II (Beck, Steer, & Brown, 1996) along with secondary outcomes of anxiety (Beck Anxiety Inventory; Beck, Epstein, Brown, & Steer, 1988) and quality of life (Quality of Life Enjoyment and Satisfaction Questionnaire; Endicott, Nee, Harrison, & Blumenthal, 1993). Men and women demonstrated equivalent pretreatment and posttreatment illness severity, a comparable gradient of improvement on outcomes, and attainment of clinically meaningful benchmarks. Keywords: depression; dysthymia; gender; cognitive-behavioral therapy; psychotherapy; quality of life; community study

Published
2008

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