PURPOSE: Factors affecting physical and psychological outcomes for those with chronic conditions are complex, extending beyond medical symptomology to numerous demographic influences. Living with hypermobile Ehlers-Danlos Syndrome (hEDS) is characterised by diagnostic delay and numerous comorbidities, known to impact wellbeing. MATERIALS AND METHODS: This high-powered study ( RESULTS: Results indicated worse outcomes for those diagnosed after the reclassification and for those with higher numbers of comorbidities. Conversely, improved outcomes were associated with older age. Findings were supported by insights captured in participants' demographic profiles where a wider breadth of comorbidities were recorded than previously identified. Meanwhile, there was no evidence of a change in the route to diagnosis over time, and data showed ongoing limitations in terms of options for effective treatment. CONCLUSIONS: These findings point to the potential effectiveness of self-management techniques for improving well-being with chronic conditions and highlight the need for improved awareness of hEDS and its management amongst primary care practitioners.