ObjectiveTo introduce the Korean Database of Cerebral Palsy (KDCP) and to provide the first report on characteristics of subjects with cerebral palsy (CP).MethodsThe KDCP is a nationwide database of subjects with CP, which includes a total of 773 subjects. Characteristics such as demography, birth history, onset and type of CP, brain magnetic resonance imaging (MRI) findings, functional ability and accompanying impairments, were extracted and analyzed.ResultsPreterm delivery and low birth weight were found in 59.51% and 60.28% of subjects, respectively. Postnatally acquired CP was 15.3%. The distribution of CP was 87.32%, 5.17%, and 1.81% for spastic, dyskinetic, and ataxic types, respectively. Functional ability was the worst in dyskinetic CP, as compared to other types of CP. Speech-language disorder (43.9%), ophthalmologic impairment (32.9%), and intellectual disability (30.3%) were the three most common accompanying impairments. The number of accompanying impairments was elevated in subjects with preterm birth and low birth weight. Brain MRI showed normal findings, malformations, and non-malformations in 10.62%, 9.56%, and 77.35% of subjects, respectively. Subjects with normal MRI findings had better functional ability than subjects with other MRI findings. MRI findings of a non-malformation origin, such as periventricular leukomalacia, were more common in subjects with preterm birth and low birth weight.ConclusionThe KDCP and its first report are introduced in this report, wherein the KDCP established agreement on terminologies of CP. This study added information on the characteristics of subjects with CP in South Korea, which can now be compared to those of other countries and ethnicities.

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Background: To check in advance whether there are any problems in use and to address these in the process of designing a medical device, it is necessary to evaluate user suitability. Yet currently, there are a few user suitability evaluation constructs established for unique technologies. Therefore, the development of user suitability evaluation constructs for the user suitability evaluation of self-developed computerized cognitive rehabilitation applications should be prioritized. Method: To evaluate the user suitability of the computerized cognitive rehabilitation application developed in this paper, we derived the user suitability evaluation constructs of user satisfaction, time satisfaction, difficulty, comprehension, effectiveness, efficiency, and error, and after clinical trials for user suitability evaluation, we analyzed the results and tried to identify and address the problems of the developed evaluation constructs. Twenty-four senior citizens over 55 years of age participated in the clinical trial, and performed cognitive rehabilitation training once a week for 3 weeks using our self-developed cognitive rehabilitation application. Result: As the weeks progressed, satisfaction increased in orientation training and concentration training. User suitability evaluation constructs for effectiveness, efficiency, and error were appropriate, but there were insufficient aspects in the evaluation scales for user satisfaction, time satisfaction, difficulty, and understanding; Conclusion: we were able to derive an improvement plan by extracting the established user suitability evaluation scale. Trial registration: Ethics approval and consent to participate. The evaluation was conducted after obtaining Institutional Review Board approval from Dongguk University Ilsan Hospital (DUIH2020-07-001-001).

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