➡️ "Really?! 1 in 14 people. That seems like a lot."
➡️ "If there are 2 kids with DLD in the average classroom of 30, how come I haven't heard of it?"
So how do we know DLD affects 1 in 14 people?
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To start with we rely on epidemiology (prevalence) studies, but these are often expensive, time-consuming, and have some limitations. This means we don't have a lot of them.
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✅ One study by Bruce Tomblin and team in 1997 screened 7218 children in the US and found approximate 7.4% had DLD (formerly SLI). Approximately 8% of boys and 6% of girls were affected.
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✅ In 2016, @lilacCourt and her team in the UK assessed 7267 children. They found 7.58% had DLD and 2.34% had a Language Disorder associated with a condition (such as Autism or Intellectual Disability).
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💜💛 With some quick maths, we have a pretty good idea that DLD will impact around 7.5% | 1 in 14 people | 2 in the average classroom of children, however, both of these studies only looked at children from 4 to 6 years of age.
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Here we need to look at research that has taken place over a period of time (longitudinal).
✅ Bruce Tomblin followed 196 children from his earlier research for 4 years and found DLD will persist into primary school.
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✅ The Manchester Language Study has been tracking the progress of participants with DLD in the UK since the 1990's. Through multiple research papers, the research team has clearly demonstrated that DLD is a lifelong condition, but impacts people in different ways.
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💜💛 With the knowledge of "how many" have DLD and the lifelong impact documented in these (and many other) studies, we can say with growing confidence that 1 in 14 people have DLD.
🌟 We're so excited to introduce you to the incredible Ellen who is our hero! Ellen is a 16-year-old with DLD from the UK with a talent for writing. She recently graduated high school and has just commenced college studying the arts.
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Ellen is a RADLD ambassador and created her own website to raise awareness of DLD. What a legend! Here's a few words from Ellen......
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Here are Ellen's Top Tips for helping a child with DLD
Okay team, we have work to do! As you can see from the photo of @shaunziegenfusz in 2019, lighting up landmarks in #DevLangDis colours is awesome! It also helps secure media coverage to build public awareness of DLD.
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We're determined to make the 2020 DLD Awareness Day on 16 October bigger than ever in Australia and we need your help. Can you think of a great landmark near you to light up in purple and yellow? It could be a:
🌉 Bridge
🌆 Building
🌄 Natural icon
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Here's a list of Aussie landmarks we know are lighting up this year so far:
💜 Optus Stadium | PERTH
💛 Victoria Bridge | BRISBA NE
If you'd like to help get more locations involved and help raise awareness of DLD you can get more information on the RADLD website ⬇️
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