Transcript
Professor Ron Rapee Hi there, and welcome back to those of you who saw the first part of this series, or welcome to anyone who’s joining in the middle here. I’m talking about the nature and treatment of anxiety disorders in children and adolescents, and this is part two, where I’m going to give a broad overview of the treatment of children and adolescents with anxiety.
When we’re talking about evidence-based treatment, so that is treatments for which there is good scientific evidence for their efficacy, and I’m talking here about several studies, not just a one-off, there’s really two types of treatments that have shown – that have been shown to work with children and young people with anxiety disorders. First and foremost are the – are what’s referred to as cognitive behaviour therapy. That is skills-based teaching or training of strategies, and there’s – that’s got, by far and away, the most evidence. There’s a large number of research trials showing that cognitive behaviour therapy works for children and anxi – and adolescents with anxiety disorders.
When we think about cognitive behaviour therapy, the traditional way in which that’s done is – naturally, it’s with a parent and child perhaps going to see a Therapist in an office and sitting down in chairs, face-to-face, facing each other, and going through session after session in that way, that’s the traditional treatment. More recently, Researchers have started to develop what are often referred to as low-intensity treatments. That is, treatments that require less input, less time from a Therapist, and can be delivered more easily and more broadly and disseminated more broadly, and many of these are run on the internet, that is, online treatments. And so, I put those there as a separate group, but they’re still cognitive behaviour therapy. So, the evidence – there’s evidence that both traditional and online cognitive behaviour therapy work for the treatment of anxiety disorders.
Another form of treatment is medication. Within the medication trials, there’s far fewer trials of medication for children and adolescents and it’s a far less popular treatment, but there is certainly very clear evidence that medication works, and it works about as well, pretty much equivalent, to cognitive behaviour therapy. Among the medication trials, the most commonly evaluated form of medication are the selective serotonin reuptake inhibitors, referred to as the SSRIs. These are often referred to colloquially as anti-depressants, but of course, they’re not just anti-depressants. They work well for anxiety, and as I said, there’s good evidence that they work for the treatment of young people.
Now, I’m going to go on to talk in a little bit more detail about treatment, but I’m not going to talk any more about medication, that’s not my field, and so, I’m going to talk primarily about cognitive behaviour therapy treatments. So, to give you an example of a type of cognitive behaviour therapy treatment is our own treatment, Cool Kids. Now, I make a disclaimer here to say I’m not in any way saying that Cool Kids is the best, or it is different to any other cognitive behavioural treatment. I’m giving it purely as an example of one type of cognitive behaviour therapy package, because obviously, it’s the one that I know best. It comes from our clinic at Macquarie University.
Cool Kids has – is a structured, manualised treatment. It provides very clear indication for the Therapist about – guidance for the Therapist about how to do treatment, and – although there’s flexibility, of course, in how the Therapist applies that. But it’s one of several programmes around the world that have that same sort of structure and guidance for Therapists. This particular programme, the main programme covers manuals for children from seven to 17. There’s separate manuals for children, which is – in Australia, it’s primary school, so it’s, like, seven to 12-ish years of age. And there’s a different manual for adolescents, who’d be in high school in Australia, which is, like, 12 up to 17. We also do have a preschool version of the programme, and so, this pretty much, characterises the research across the world in most forms of treatment for anxiety, which is that there’s treatments – good evidence that you can treat children all the way from preschool, through to the end of high school, using these sorts of manualised programmes.
Cool Kids can be delivered either in group or individual face-to-face sessions, and again, that’s typical of the world. Most programmes are delivered either group or individually, and both group and individual treatment have been shown to work. This particular programme is delivered – the main programme is delivered in ten sessions over 12 weeks. We allow flexibility within our programme so that if the child is not better after ten sessions, the Therapist can choose to go longer, but the main programme, the evaluated, scientific programme, is typically ten sessions over 12 weeks. And again, that’s very common, very typical of most programmes in the world. Most of the CBT programmes tend to be between about eight to 15 sessions in length.
In the Cool Kids programme, we include the parents in all our versions, but they vary – their inclusion varies depending on the age of the child. So, the preschool programme is entirely a parent-delivered programme. For the child programme, we include parents in every session, in every step of the way, and for the adolescent programme, parents become less and less involved as their teenager gets – is older. Again, this is not uncommon in other programmes around the world, but this is one area in which the programmes do differ a bit. Some programmes tend to have very little parent involvement, and some programmes, like Cool Kids, are very heavily parent inclusive, and they just vary. The evidence doesn’t suggest a lot of difference between parent-delivered versus – or parent-included – inclusive versus not inclusive programmes. Both seem to work well.
The programme, Cool Kids, teaches very practical skills and strategies, which is the hallmark of cognitive behaviour therapy, and in Cool Kids, as well as in all other programmes, cognitive behavioural programmes, there is extensive between-session homework. In terms of the content of Cool Kids, again, not – very, very similar to most other programmes around the world. As I’ve mentioned, it’s a skill-based programme, so the idea is that it’s teaching new skills, new strategies to the parents and the children to help the children manage their anxiety independently. Specific components include, firstly, psychoeducation, and you’ll find psychoeducation, that is information about the nature and the causes and the treatment of anxiety, general information like that is a component of pretty much all cognitive behavioural programmes. Cognitive restructuring is included in Cool Kids. It is in some but not all pro – other programmes. We refer to that as ‘Detective thinking’ where we talk to the children, but it’s really teaching the children different ways of looking at the world, different ways of using information and evidence to try to change their beliefs and their expectations. We teach the parents child management strategies. That is, we teach the parents different ways of interacting with their child, and in particular, we focus very strongly on parent overprotection. So, we teach the parents to gradually pull away from and allow their child greater and greater autonomy.
Most importantly, the core component of Cool Kids is in vivo exposure. That is, getting the child in a structured, systematic way, to approach and engage with the situations that they are currently avoiding. Reducing that avoidance behaviour is the core component of all cognitive behavioural programmes, and it is the major – the lion’s share of the treatment programme within Cool Kids. We then supplement that with a variety of skills training, teaching kids social skills or assertiveness, or how to deal with bullying, where it’s needed, only – that’s a more flexible part of the programme, where and if needed. And throughout the whole programme, there’s an emphasis on real-life applications through continued homework practice and putting everything into practice.
So, let’s then – having gone through the nature of the treatment, let’s talk a little bit about some of the scientific evidence that’s around, and again, I’ll use examples largely from Cool Kids, but it’s just examples of the scientic – it’s the scientific evidence that’s around for all different forms of CBT treatments. Firstly, talking broadly across the research – across the literature, there was a Cochrane Review, that is the pinnacle meta-analytic review of any treatment, a Cochrane Review of CBT treatments for child anxiety done by James and colleagues.
The most recent one for this talk – recent to this talk is – was in 2020, and what they showed in 2020 was when you look at all the cognitive behavioural treatment studies around the world, you find at the end of treatment, that just about 50% of children at the end of treatment are free of their main presenting anxiety disorder. So, if a child presents with social anxiety disorder, there’s a 50% chance that they will be free of that disorder at the end of treatment, if they present with generalised anxiety disorder and so on. So, across all anxiety disorders, about half the kids are free of their main disorder at the end of all these treatments. Compared to control treatment, all the different control treatments, around about 17% of children are free of their disorder at the end of all the comparison treatments.
So, you can see, you don’t need statistics to tell you that that is a clear difference, and CBT treatments work and they work very well. There’s still a long way to go. 50% means that 50% of kids are not free of their disorder at the end of treatment. What the James – what the Cochrane Review didn’t look at, but we do know from other reviews, is that improvement continues after treatment. So, we typically find another ten to 20% of young people will be free of their primary disorder in the next three months to 12 months beyond the end of treatment. So, that’s the good news, is that when they keep putting these strategies into practice, they will continue to get better, but still, we end up, still, with about 30/40% of kids at any stage, even well beyond treatment, who will still maintain their anxiety disorder. We still have a long way to go to improve these treatments.
Let me give you an example of just one study, just to show you a part – a specific research study. This is a Cool Kids study that we did many years ago, where we wanted to compare our low-intensity treatment, in that case it was a bibliotherapy treatment. So, we gave parents a book and told them to help their child. We wanted to compare that against our standard Cool Kids treatment. So, we had about 200 children in this study. They were all children, in this case, aged seven to 11 years, they were randomly allocated to either get the standard Cool Kids treatment. They had ten sessions delivered over 12 weeks, as I described earlier. This particular study, it was – included group delivery, so this was group treatment of ten sessions over 12 weeks.
We compared that against a waitlist, that is, kids who got no treatment at all and were told to wait for 12 weeks, and we compared that against a pure bibliotherapy condition. That is, a condition where the parent was given a commercial book about anxiety disorders, they were told to follow the book and to help their child using the book, and we didn’t see them again for 12 weeks. And here’s the results. This is the number of young people – number of children who are free of their primary anxiety disorder after treatment. You can see first of all, on the waitlist, very few. About 7% of children lost their anxiety disorder over the 12 weeks. Here’s the more important results for this talk, which is at the end of treatment with Cool Kids, 60% of children were free of their primary anxiety disorder, and over the next three months that continued to increase, up to about 75%/73%, something like that. So, you can see, after three months after treatment, about 73% of kids are free of their main presenting problem in Cool Kids and in many other treatments.
Interestingly, just as an aside, when you look at the book treatment, that is, giving parents a book alone, they actually do pretty well. About 25% of those kids are free of their anxiety disorder just by having a parent book – go through strategies with them, following a manual, a book. And that dropped a little bit in the next three months, but it’s still much, much better than waitlist. Just to point out, then, some other research showing that not only do we get good results when we run these very carefully controlled trial – scientific trials in university clinics, but here’s some research from a group in Denmark, Jónsson and colleagues, in 2015, who looked at the use of Cool Kids in community outpatient clinics. These were general community clinics using regular Community Therapists, and they looked – it wasn’t a controlled trial, but they looked at how these kids changed over time, and here first of all, are the results for the symptoms.
This is the SCAS, which is the Spence Children’s Anxiety Scale. It’s a measure of anxiety symptoms, and their symptoms reported, firstly by the child themself, and secondly by the parent about the child. And you can see in both cases that there is lovely, large changes over time. That is, running the treatment – Cool Kids treatment in a community setting, these kids are improving dramatically from pre to post-treatment, and they showed continued improvement over the next several months.
This next slide is looking at life interference. So, the CALIS is a measure of the impact on the child’s life of the anxiety symptoms according to the child’s own report, and according to the parent’s report, and again, you can see nice changes across time. A little bit less when you look at the child’s own report, but when you look at the parent’s report as well, very, very large and dramatic improvements across time, post-treatment, and into follow-up, showing that you can run these sorts of treatments in regular external community practice.
And what about the online, the low-intensity internet treatments? I hadn’t mentioned earlier that the Cool Kids – we also have online versions of Cool Kids, where we run treatments via the internet, both for children, a child version, and an adolescent version, which we call Chilled Out. And so, here’s some data, again done from Denmark, the Danish groups are fabulous at running Cool Kids and running great research. This is a Danish group looking – in 2019 – looking at the impact of Chilled Out, our adolescent version of Cool Kids online treatment.
In this study they had 70 adolescents aged 13 to 17 years. Those of you who work with young people know that’s a pretty tough time to be treating kids, an average of 15 years of age, so this was a difficult group of kids. 80% were female, and in this particular study they gave this online treatment, which has regular delivered sessions that are done online, and together with this, they also – these Researchers had telephone calls with the young person for 20 minutes at a time, every week. Now, that’s a relatively heavy amount of Therapist input in this case, compared to some online treatments, but it’s still much, much less than you would find in traditional face-to-face treatments. They’re still a very low-intensity treatment, and they also had a booster call three months later.
And this is the percentage who were free of their presenting anxiety disorder at the end of treatment. You can see, even with this low-intensity treatment, online treatment with just 20-minute Therapist phone calls, 40% of these teenagers were free of their primary disorder at the end of treatment, compared to only about 15% of those in the waitlist. And three months later, that was more or less maintained, a little bit – a slight drop-off, but still about 35% free of their primary disorder, with this relatively low-intensity treatment. And as I mentioned earlier, it’s not just this programme, but there are many other online treatments, and in general, the research shows these programmes work and they work well.
So, let me, then, just get onto some broader comments of interest to Therapists and Researchers, which is, firstly, what are some of the moderators of treatment? What are some of the factors that we need to consider that will impact the efficacy of treatment? Firstly, the severity of anxiety. We know that more – kids who start out more severe, will finish more severe. They actually show equivalent improvement over time. So, kids – severity of anxiety doesn’t seem to moderate the effects of treatment, but it does affe – obviously moderate the endpoint, because these kids start out more severe, at the end of 12 weeks of treatment, ten sessions, 12 weeks, they are still more severe. So, if you need to treat a child with greater severity anxiety, you might need to continue for longer.
Social anxiety disorder is a big one. We know from study after study after study from all around the world, that the kids who have social anxiety disorder, either as their main presenting disorder or as an additional disorder, those kids don’t do as well in treatment. There are a number of theories around this, about why, but we don’t know exactly what the reason is, but we do find consistent evidence that the young people with an – social anxiety disorder tend to have worse outcome at the end of treatment. They don’t respond as well.
Comorbid disorders, kids who have other comorbid disorders, such as externalising disorders or mood disorders, also don’t seem to do as well. Again, the evidence suggests that these kids actually do respond to treatment as well as kids without these extern – these other disorders. In other words, they change at the same, sort of, rate, but again, like the severity issue, kids with comorbid problems, particularly those kids with ext – with depression, comorbid depression, they start out a lot worse at the beginning of treatment, and therefore, even though they improve over time, they still finish a lot worse. And they need something – either something additional, or they need more sessions, because at the end of ten sessions, they have not remitted nearly as much as kids who don’t have these additional comorbid problems.
We also know that parent emotional disorder, that is, parents who have anxiety or mood disorders, their children don’t tend to respond quite as well. And that’s possibly partly due to the extra genetic loading, or it might be due to the way in which these parents are engaging with their child. But for whatever the reason, we don’t know the exact reason, those kids – parent emotional disorder also appears to impact treatment, so those kids don’t do quite as well as the kids of parents who don’t have anxiety or mood disorders.
That’s the bad news. What about the good news? What are some of the moder – potential moderators that actually don’t moderate, actually don’t make a lot of difference to treatment? Firstly, the group versus individual treatment, I mentioned this point earlier. It doesn’t seem to make a difference to outcome whether you treat kids – anxious kids as a group, or whether you treat them individually, one-on-one. The outcomes appear to be much the same. So, that’s good news. You can – the Therapist can choose how they want to run treatments. It might be more efficient to run it as a group, but it’s also sometimes a little harder to arrange, and so, it’s different Therapists will run it in different ways, and it doesn’t seem to make any difference to outcome.
Girls versus boys also doesn’t seem to make a lot of difference. There’s perhaps a little bit of – maybe some hints in the research, a little bit of suggestion that boys do a little better than girls at the end of treatment, but in general, no significant difference, and overall, there doesn’t seem to be much difference. So, you can treat girls and boys much the same, and outcomes will be much the same. Similarly, children versus adolescents. There are a few little hints in the literature that adolescents perhaps are harder to treat and don’t do quite as well in outcome. There’s no doubt that most Therapists who work with children and adolescents will admit that adolescents are a little bit harder to engage in treatment, and they have more autonomy of course, so engagement is more important. But overall, the research shows that children and adolescents at the end of treatment appear to do very similarly well, and there doesn’t seem to be any major or obvious difference between the ages in terms of outcome.
Therapist contact time I put under this list, but it’s a little bit more confusing, a little bit more mixed than that. Overall, Therapist contact time doesn’t make a big difference when you get to the higher level. So, there’s some evidence that when you’re doing traditional face-to-face treatment, when you have very little – very few sessions, and very little Therapist time, such as two or three or five sessions, they don’t – kids in those programmes don’t do quite as well as kids that might get eight or more sessions. But the evidence suggests that once you have more than about eight sessions face-to-face, it makes no difference how many sessions you have, the outcomes are much the same.
We also know, as I’ve shown before, that online treatments, low-intensity treatments, also show very good effects, and that’s with very, very minimal Therapist time. So, Therapist contact time is a slightly mixed question. It’s not true that it makes no difference, but in general, it doesn’t seem to make a huge amount of difference, particularly if you have the right form of treatment. Type of anxiety disorder also makes very little difference, apart from the comment I made earlier about social anxiety disorder. As we know, kids with social anxiety disorder tend to do much worse than kids with other disorders, but kids with the other forms of anxiety disorder do very, very similarly at the end of treatment, and that includes obsessive compulsive disorder. So, kids who have obsessive compulsive disorder, separation anxiety disorder, specific phobias, or generalised anxiety disorder, all seem to have very, very similar outcomes at the end of treatment. It’s only social anxiety disorder that seems to do a little worse.
And finally, the very good news for those who are working with autism spectrum disorder, the – having autism spectrum disorder appears to make no difference at all to outcome. And there’s now some very good meta-analyses showing that you can treat the anxiety component among kids with autism spectrum disorder, and the outcomes for anxiety are just as good as you get for anxiety disorders for kids without autism spectrum disorder. There are specific treatments we – for Cool Kids, for example, we have a specific separate version of Cool Kids specifically designed for kids who have autism spectrum disorder, and there’s similar specific programmes in other parts of the world for kids with the comorbid problems. So, a slightly different programme is used, but the good news is that the anxiety component of that is treated equally as well, whether or not kids are on the spectrum and so, they get equally good results.
Thank you very much for listening. I hope this was useful to you, and I wish you all the very best in your research and your practice.