"Only a third of depression cases treated" - Guardian headline, 14th August 2014
The front page of today's Guardian covered an interview with Professor Simon Wessely, the new President of the Royal College of Psychiatrists, who raised what he sees as a lack of parity in the way mental and physical disorders are treated.
The headline estimate - that a third of sufferers of depression are treated - is actually higher than the one used by NHS England, which says the proportion is about a quarter. When we contacted them the Royal College of Psychiatrists said they also use that estimate, and weren't sure were the "one third" figure came from.
The "quarter" estimate is of the proportion of people who were assessed by a survey as having depression or an anxiety disorder (or both) and who were receiving treatment at the time. It doesn't tell us anything about the proportion of those diagnosed with a disorder who were treated, or whether they were treated in each episode of ill health.
The estimate of a quarter comes from research conducted in 2007, so the proportion could well have risen to a third since then. We're going to be in touch with Professor Wessely to see if he can clarify.
One quarter: where the estimate comes from
Survey respondents screened positive for disorders if they met certain criteria. For example, to screen for Post-traumatic stress disorder (PTSD), respondents were asked if they had experienced a traumatic event. If they had, they were asked if they had experienced any of ten symptoms, including jumpiness or difficulty sleeping, twice in the past week. Those who answered yes to six of the ten symptoms screened positive for PTSD.
Participants were also asked if they were currently being treated for a mental or emotional problem. It's important to note that some people treated had suffered more than one of the conditions the survey looked at, and might not have been receiving treatment for all of them. In other words, some people who were depressed might be counted as receiving treatment even if this treatment wasn't for depression.
And because it only looked at the number being treated at the time of the survey, it doesn't tell us how many cases of depression or other mental health conditions are treated.
The proportion in treatment broken down by condition
At the time of interview:
- 28% of those who suffered from PTSD at the time of the interview were receiving treatment.
- 24% of those who'd suffered from depression or anxiety in the past week were receiving treatment. Symptoms of depression include having a low mood and a loss of interest in everyday experiences. Symptoms of anxiety include panic disorders, phobias, and obsessive compulsive disorder (OCD).
- 65% of those who had suffered a psychotic disorder in the past year were being treated. Symptoms of psychosis involve "disturbances in thinking and perception severe enough to distort perception of reality".
- 20% of those screening positive for possible attention deficit hyperactivity disorder (ADHD) were being treated. Symptoms include problems with organisation, restlessness, and impulsiveness of an extent that causes distress and interference with everyday activities.
- 19% of those who screened positive for an eating disorder in the past year were being treated. An eating disorder involves a "persistent and severe disturbance in eating attitudes and behaviour".
The survey looked at several other psychiatric conditions, but wasn't able to produce reliable estimates of the proportion who were in treatment in all cases. For instance, the number of people with a personality disorder or who were dependent on drugs was too low to draw reliable conclusions from.
Updated the text and chart to make clear that the "quarter" estimate refers to the proportion in treatment, rather than the proportion who have been treated or the proportion of episodes of illness that were treated.
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