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Predictors of Diagnostic Crossover and Symptom Fluctuation in Eating Disorders

Tetyana 8 Comments

Symptom fluctuation and diagnostic crossover are common in eating disorder patients. A study by Eddy et al. (2008) – who followed patients over an average of 7 years – showed that crossover between subtypes and full-syndrome diagnoses is very common : of those initially diagnosed with anorexia nervosa, almost 73% crossed over to another diagnosis (between symptoms and to bulimia nervosa). More specifically, roughly 50% experienced fluctuation between subtypes (restricting, AN-R, and binge/purge type, AN-BP) and roughly 35% crossed over to bulimia nervosa (a subset experienced both). Of those initially diagnosed with bulimia, roughly 14% crossed over to AN-BP and of those, 3.91% crossed over to AN-R.

This finding (though, well-known to ED specialists and even more well-known to patients) has important implications for treatment. For example, CBT and anti-depressants seem to have positive results in bulimic patients, but not so much in anorexics. What then, about those that crossover … Continue reading →

The Research-Practice Gap in Eating Disorder Treatment

Tetyana

The approaches used in clinical practice to treat patients often lag behind the most up-to-date developments in research. It can take a long time to integrate scientific findings into clinical practice. This, of course, is not limited to eating disorders or even mental health issues. This so-called “science-practice gap” exists for many reasons, which vary depending on the medical discipline.

This issue, though, seems particularly bad when it comes to eating disorder treatment.

There’s the issue of conducting good studies – how do we determine what is efficacious? That’s a complicated task. What is “recovery” and how long is long-enough for follow-up? Is what we consider to be efficacious really efficacious or just slightly better than the rest?

Then there’s the training: mental health seems to be undervalued in medical school curricula for one, but even more importantly: “Clinicians tend to give more weight to their personal experiences than to … Continue reading →

Naomi Wolf Got Her Facts Wrong. Really, Really, Really Wrong.

Tetyana 18 Comments

I’m working on a post about the role of serotonin in the development and maintenance of anorexia, but it is taking me some time as I want to include a sufficient amount of background information. So, in the meantime, I’m going to blog about a short paper that was brought to my attention by Sarah. As you might have guessed by the title, the paper’s author, Casper Schoemaker, wanted to do some fact-checking on Naomi Wolf’s first book, titled The Beauty Myth. A quick glance at the Amazon ratings reveals that a lot of people like it, and many find it shocking and “eye-opening”. Now, I’ll admit: I haven’t read it, and I don’t plan to. (I don’t read books like this.) But I have come across blatantly wrong statistics on eating disorders from people citing her work.

(Books are not peer-reviewed. The main thing you need to … Continue reading →

Who Gets Treatment? Your Ethnicity Matters

Saren 9 Comments

In 2010, I wrote a literature review on eating disorders in women of color in North America. I expected to find only a few articles on this subject – every lecture in my undergrad psychology classes, every piece of information targeted to the public, every discussion I had, it seemed, either omitted the existence of EDs in non-stereotypical (white, female, heterosexual, adolescent, upper/middle-class) populations altogether – or glossed over it with a footnote on “acculturation” that reductively attributed the disorder to a misguided desire to fit into the dominant culture, much as other women might aspire to look like the images of female bodies in mass media. (Acculturative stress is actually far more complex than this, and furthermore is not necessarily the sole or even the primary cause of EDs for all people of color.)

[Some people] think that I hate being Asian and want to look white, which

… Continue reading →

UK vs. US in Media Reporting on Eating Disorders: Who Does it Better?

Tetyana

Given the popularity of my post on how the media portrays eating disorders, I thought I’d do a follow-up entry by looking at more recent and comprehensive study on the topic. Specifically, I am going to review Shepherd & Seale’s 2010 paper, which built on the findings of O’Hara & Clegg-Smith, with a UK-focus. In particular, they: (1) compared UK and US media reporting of EDs, (2) tracked changes of in ED coverage over a 17-year period, and (3) studied the differences between newspapers with different target audiences.

Shepherd & Seale reiterate much of what O’Hara & Clegg-Smith wrote: ED specialists and researchers understand that EDs are complex, multi-factorial diseases with complex genetic and environmental underpinnings, that they are often associated with many medical complications and that they are hard to treat. The public, however, largely puts the blame on the patient and/or their parents, viewing it as … Continue reading →

Chances Are, What You Know About Eating Disorders is Wrong

Tetyana 19 Comments

Although clinicians (and medical professionals not specializing in eating disorders) often carry a lot of false beliefs about EDs, the public is even worse. Way worse. The portrayal of eating disorders in the news contributes to the myriad of myths and misconceptions that surround EDs. O’Hara and Clegg-Smith wanted to find out how exactly newspapers “contribute to shaping public perception of EDs.” 

It is awful when doctors are dismissive and ignorant, but it is even worse when you encounter these attitudes from your friends and family. When they not only don’t get it, they don’t want to get it. As O’Hara & Clegg-Smith point out, this ignorance and “disconnect potentially prevents timely ED diagnosis and reinforces a stigma that limits treatment availability.”

While researchers and ED specialists increasingly understand that eating disorders are “caused by a combination of genetic and environmental factors” (for example, evidence from twin studies … Continue reading →

Gender Nonconformity, Transsexuality and Eating Disorders

Tetyana 9 Comments

Too many people still mistakenly believe that eating disorders are for the Mary-Kates, Nicole Richies and Lara-Flynn Boyles, or vain adolescent and teenage girls aspiring to be just like them. Actually, as I’ve blogged earlier, even male veterans in late middle age are not immune to struggling with anorexia and bulimia nervosa. All in all, males make up ~ 5-10% of all eating disorder sufferers.

But what about those that dread having to check off “male” or “female” on a data form? What about individuals who feel their gender identity is not the same as their assigned birth sex. Perhaps they were born in a female body, with two XX chromosomes, but they feel and prefer to think of themselves as males, or the reverse? There’s some research (albeit limited, due to the rarity of both gender dysphoria and eating disorders) that suggests these individuals face an increased risk … Continue reading →

EDNOS, Bulimia Nervosa: As Deadly as Anorexia in Outpatients

Tetyana

Eating disorder not otherwise specified (EDNOS), the catch-all diagnosis for eating disorder patients that don’t neatly fit into the DSM-IV anorexia nervosa (AN) or bulimia nervosa (BN) categories, is often thought to be less severe. Patients with sub-threshold AN or BN (missing one or two criteria) fall into the EDNOS (a large proportion, perhaps the majority, of patients). The inherent assumption in the word sub-threshold is that the patient is not as sick. Symptom frequency and behaviours are not that bad.

Increasingly, research is showing otherwise (which comes as no surprise for those of us who have struggled with eating disorders).

One study that has illustrated this quite nicely was published in 2009 by Dr. Scott Crow and colleagues in the American Journal of Psychiatry. Given that most ED mortality research has focused on anorexia nervosa, Crow et al wanted to compare mortality (from all-causes and suicide specifically) in patients … Continue reading →

EDs Don’t Discriminate: Psychiatric Comorbidity in Men with Eating Disorders

Tetyana

Eating disorders don’t discriminate, they just have a bias (more on this in the future). While the majority of eating disorder patients are females, males suffer from eating disorders as well. In fact, it is about, roughly, a 10:1 ratio.

Men tend to just keep quiet about it (and who can blame them, given the stigma women face, it only gets worse for the men.) But, on the inside, their experiences, thoughts, behaviours and recovery span the same spectrum.

There’s relatively little research out there on men with eating disorders, in large part due to the low prevalence rates which makes it harder to get a large enough sample size. So, you have to get creative, as the authors of this study did: they reviewed the prevalence of eating disorders and comorbid psychiatric disorders using data from the Veterans Affairs medical centers of male patients in the fiscal year of … Continue reading →

Eating Disorders and Psychiatric Comorbidities in Female Inpatients

Tetyana 7 Comments

Patients with eating disorders commonly exhibit comorbid psychiatric disorders, including anxiety, depression and OCD. The presence of comorbid disorders has been shown to exacerbate the severity and chronicity of the disorder, and unfavourably affect treatment outcome. Moreover, comorbid disorders may necessitate specialized treatment plans that take into account all the co-occuring disorders. Recovery from an eating disorder is hard enough, but when it is complicated by depression and severe anxiety, it can be a lot harder.

Nonetheless, commonly co-occuring psychiatric disorders may also provide researchers and clinicians clues about the etiology of eating disorders, the underlying neuronal processes as well as possible pharmacological interventions.

Researchers have been identifying disorders that commonly co-occur with eating disorders and studying the differences in co-morbidity between disorders. I picked one to write about today, it is a study by Blinder and colleagues that came out in 2007. It is by no means the best, … Continue reading →