Background. Traumatic Brain Injury (TBI) is one of the most common forms of Acquired Brain Injury (ABI), and has a high incidence rate across the world. Following TBI, many patients experience...Show moreBackground. Traumatic Brain Injury (TBI) is one of the most common forms of Acquired Brain Injury (ABI), and has a high incidence rate across the world. Following TBI, many patients experience cognitive complaints, as well as physical complaints about their health. Their general wellbeing can also be an issue. Fortunately, for most patients these complaints typically improve over time. This study investigates patients’ memory, concentration, energy, as well as general wellbeing, over time. Methods. Patients received questionnaires about their health and wellbeing every three months following hospital release, with the main goal to track their health and wellbeing after TBI. That data was used for this research. Energy, concentration, and memory were all measured by one question in the questionnaire. General wellbeing was measured by taking the average ratings of all questions on the questionnaire. Analyses were done with three and six questionnaires over time, using repeated measures ANOVAs. Descriptive statistics were used from the first questionnaire. Results. This study found that while patients rated all these measures on average positively, they still did not feel the same as before the injury, and most experienced hindrances in daily life. When looking at the ANOVAs with three questionnaires, there was a significant improvement on concentration, energy, as well as general wellbeing over time. For all of these, most improvement took place between the first and the second questionnaires. Memory did not change significantly over time. None of the ANOVAs with six questionnaires had any significant changes over time. Conclusion. This study shows that patients may suffer from long-lasting effects of TBI. It questions whether more should be done for these patients following hospital release, to alleviate symptoms. This study has limitations concerning selection bias and drop out.Show less