• 제목/요약/키워드: Normative percentile

검색결과 8건 처리시간 0.018초

한국 인구에서 NeuroQuant와 DeepBrain에서 측정된 뇌 용적의 정상규준 백분위수 비교: 두개골 형태와의 연관성 (Comparison of Normative Percentiles of Brain Volume Obtained from NeuroQuant vs. DeepBrain in the Korean Population: Correlation with Cranial Shape)

  • 양미현;김은희;최은선;고홍석
    • 대한영상의학회지
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    • 제84권5호
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    • pp.1080-1090
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    • 2023
  • 목적 이 연구의 목적은 한국 인구에서 NeuroQuant (이하 NQ)와 DeepBrain (이하 DB)에서 측정된 뇌 용적과 정상규준 백분위수를 비교하고, 두개골 형태와의 연관성을 확인하는 것이다. 대상과 방법 이 연구는 구조적 뇌 이상이 없는 163명의 한국인을 대상으로 NQ와 DB에서 측정된 뇌 용적과 정상규준 백분위수를 비교하고, 두개골 형태와의 연관성을 확인한 후향적 연구이다. 급내상관계수분석과 선형분석의 통계학적 분석을 시행하였다. 결과 정상규준 백분위수는 시상(90.8 vs. 63.3 percentile), 피각(90.0 vs. 60.0 percentile), 그리고 두정엽(80.1 vs. 74.1 percentile)에서 NQ가 DB보다 더 큰 것으로 나타났고, 후두엽(18.4 vs. 68.5 percentile)은 DB가 NQ보다 큰 것으로 나타났으며, 특히 후두엽의 경우 두개골 형태와의 비교 연구에서 유의미한 연관성을 보였고, 두개골의 전후 방향의 길이와 비례하고 상하방향의 길이와는 반비례했다. 결론 NQ와 DB에서 얻은 정상규준 백분위는 각 뇌 영역마다 유의미한 차이를 보였고, 그 차이는 한국 인구의 두개골 형태와 유의미한 관계가 있었다.

영아기 가정환경검사(IT-HOME) 규준 개발 연구 (A Study on the Development of the Normative Scores for the IT-HOME Inventory)

  • 이영;이정림;박신진;우현경;구자연;정현주
    • Human Ecology Research
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    • 제53권4호
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    • pp.433-445
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    • 2015
  • This study develops normative scores of the Infant/Toddler version of the Home Observation for Measurement of the Environment (IT-HOME) inventory for Korean infants and toddlers. We selected 482 0- to 36-month-old infants and families by a stratified sampling procedure that considered residency, age, and gender of children. The pass rate, discrimination rate, and internal consistency were analyzed for the item analysis. Statistical validity included intercorrelation among the IT-HOME subscales, correlation between IT-HOME scores and environmental status variables, and correlation between IT-HOME and Korean Bayley Scales of Infant Development second edition (K-BSID-II) scores. Normative scores were prepared by percentile ranks. The results of this study were as follows: First, 45 items were acceptable for Korean subjects with few exceptions. IT-HOME was developed to screen unfavorable environmental factors during infancy; therefore, items such as 12, 17, 23, 39, 44 need to be retained even though they had low discriminating power. Second, IT-HOME subscales were correlated, and IT-HOME was significantly related to parents' education level, household income level, and infant' developmental levels. Third, percentile scores and the median of each IT-HOME subscales were suggested as normative scores. We discussed the normative scores of the IT-HOME to screen the quality of home environments for children aged 0-36 months in Korea, and provide the intervention basis for the at-risk population.

한국어판 일상 생활 스트레스 척도(K-DSI)의 표준화 연구 (Standardization of Korean Version of Daily Stress Inventory(K-DSI))

  • 조숙행;이현수;송현철;김승현;서광윤;신동균;고승덕
    • 정신신체의학
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    • 제8권1호
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    • pp.72-87
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    • 2000
  • 연구목적 : 본 연구에서는 일상 생활에서 흔히 경험하는 사소한 스트레스 요인들을 측정하는데 민감한 척도인 일상생활 스트레스 명가 척도의 한국어판(K-DSI)올 표준화함으로써 정상인에서의 규준표를 제시하고자 하였다. 방법 : 19세 이상의 정상인 524명을 대상으로 한국어판 일상생활 스트레스 평가 척도의 58개 문항을 일주일 동안 연속적으로 매일 작성하도록 하였다. 마지막날에 상태-특성 불안 척도(STAI)와 Beck 우울척도(BDI), 사회 재적용 평가 척도(SRRS)를 작성하도록 하였다. 인구학적 변인에 따라 K-DSI의 사건, 영향, 영향/사건 비율 점수를 비교 분석하였으며(ANOVA or t-test). 변량 분석의 사후 검증 방법으로 Scheffe's test를 사용하였다. 내적 일치도를 통해 신뢰도를 검증하고. BDI, STAI, SRRS 점수와의 상관 분석을 통해 수렴 타당도를 검증하였다. K-DSI 점수들의 백분율 분포에 근거하여 규준표를 작성하였다. 결과 : K-DSI 점수는 남성에 비해 여성에서, 나이가 젊을수록 학력이 높을수록 높았으며, 5개의 하부 요인 범주 중 인지적 스트레스 요인들이 가장 많은 것으로 나타났다. K-DSI의 내적 일치도는 Chrombach $\alpha$값이 .99로 높게 나타났으며, BDI, STAI, SRRS 점수와 K-DSI의 일일 및 주간 사건, 영향 접수는 유의한 상관관계를 보여주었다. 백분율 분포에서 75%에 해당되는 사건 접수는 17점, 영향 접수는 57점, 영향/사건 비율은 3.48~3.49점이었으며, 1주일 사건 접수는 118~124점이고, 1주일 영향 점수는 368~389점, 영향/사건 비율은 3.47~3.48점이었다. 또한 95%에 해당하는 사건 점수는 57점, 영향 점수는 151~161점, 영향/사건 비율은 4.72~4.86점이었으며, 1주일 사건 점수는 405점이고, 1주일 영향 접수는 1038~1122점, 영향/사건 비율은 4.46~4.56점이었다. 결론 : DSI의 신뢰도와 타당도가 만족스러운 수준을 보였고 인구학적 특성에 따라 흥미로운 결과가 나타남으로써 임상적 유용성이 검증되었다. 무엇보다도 규준을 스트레스 경험의 평가에 대한 객관적인 비교기준이 될 수 있는 규준자료를 제시하였다는데 큰 의의가 있다고 할 수 있다.

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Agreement and Reliability between Clinically Available Software Programs in Measuring Volumes and Normative Percentiles of Segmented Brain Regions

  • Huijin Song;Seun Ah Lee;Sang Won Jo;Suk-Ki Chang;Yunji Lim;Yeong Seo Yoo;Jae Ho Kim;Seung Hong Choi;Chul-Ho Sohn
    • Korean Journal of Radiology
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    • 제23권10호
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    • pp.959-975
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    • 2022
  • Objective: To investigate the agreement and reliability of estimating the volumes and normative percentiles (N%) of segmented brain regions among NeuroQuant (NQ), DeepBrain (DB), and FreeSurfer (FS) software programs, focusing on the comparison between NQ and DB. Materials and Methods: Three-dimensional T1-weighted images of 145 participants (48 healthy participants, 50 patients with mild cognitive impairment, and 47 patients with Alzheimer's disease) from a single medical center (SMC) dataset and 130 participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset were included in this retrospective study. All images were analyzed with DB, NQ, and FS software to obtain volume estimates and N% of various segmented brain regions. We used Bland-Altman analysis, repeated measures ANOVA, reproducibility coefficient, effect size, and intraclass correlation coefficient (ICC) to evaluate inter-method agreement and reliability. Results: Among the three software programs, the Bland-Altman plot showed a substantial bias, the ICC showed a broad range of reliability (0.004-0.97), and repeated-measures ANOVA revealed significant mean volume differences in all brain regions. Similarly, the volume differences of the three software programs had large effect sizes in most regions (0.73-5.51). The effect size was largest in the pallidum in both datasets and smallest in the thalamus and cerebral white matter in the SMC and ADNI datasets, respectively. N% of NQ and DB showed an unacceptably broad Bland-Altman limit of agreement in all brain regions and a very wide range of ICC values (-0.142-0.844) in most brain regions. Conclusion: NQ and DB showed significant differences in the measured volume and N%, with limited agreement and reliability for most brain regions. Therefore, users should be aware of the lack of interchangeability between these software programs when they are applied in clinical practice.

한국 소아 청소년 정상 혈압 참고치 (Normative blood pressure references for Korean children and adolescents)

  • 이종국;문진수;최중명;남정모;이순영;오경원;김영택
    • Clinical and Experimental Pediatrics
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    • 제51권1호
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    • pp.33-41
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    • 2008
  • 목 적 : 소아 청소년 건강관리에서 혈압 측정의 중요성이 점차 강조되고 있는 시점에서 한국의 소아 청소년들을 위한 정상 혈압 참고 치를 만들고자 하였다. 방 법 : 2005년에 새로운 신체성장 표준치를 만들기 위해 시행한 전국 소아 청소년들의 신체계측사업에 혈압 계측사업을 포함시켜 7-20세에 해당하는 소아 청소년 57,433명(남: 29,443명, 여: 27,990명)에서 신장, 체중 및 혈압 계측치를 얻었다. 혈압은 자동 진동혈압계인 Dinamap Procare 200(GE Inc., Milwaukee, Wi, USA)를 이용하여 측정하였고 앉은 자세에서 안정한 후 우측 팔에서 5분 간격으로 2번 측정하였다. 두 측정치의 평균치를 수축기 혈압과 이완기 혈압으로 기록하여 원 자료로 하였다. 체중이 +3SD 이상인 과체중아들 2,373명의 혈압은 제외하고 분석 하였다. 혈압 백분위수 표는 성별, 연령별, 신장 백분위수별로 만들어 졌으며 통계기법은 2004 Task Force in NHLBI (USA)이 사용한 통계기법을 원용한 고정 변형 LMS 방법을 사용하였다. 결 과 : 성별, 연령별(7-18세), 신장 백분위수별(5th, 10th, 25th, 50th, 75th, 90th, 95th) 혈압 참고치가 완성되었으며 신장 백분위수에 대한 자료는 질병관리본부 홈페이지인 http://www.cdc.go.kr/webcdc/에서 확인 할 수 있다. 고혈압의 기준치는 성별, 연령별, 신장대비에서 95 백분위수 이상으로 하고, 전고혈압 기준치는 90-95 백분위수 또는 수축기 및 이완기 혈압 130/80 mmHg 이상으로 정하였다. 결 론 : 이번에 마련된 우리나라 소아 청소년 정상 혈압 참고치는 처음이기 때문에 사용기준 및 고혈압의 기준은 앞으로 지속적인 논의와 연구가 필요할 것으로 생각된다. 또한 본 혈압 표는 자동 진동혈압계로 마련된 것이기 때문에 수동 수은 혈압계를 이용한 혈압 치를 평가하는 기준표로 사용하는 것은 주의해야 할 것이다.

일 지역 시설 영.유아의 신체 성장과 발달 평가 (The Growth and Development of Infants in Orphanage)

  • 김태임
    • 부모자녀건강학회지
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    • 제5권2호
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    • pp.177-190
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    • 2002
  • This study were conducted to assess the physical growth and developmental status of infants in orphanage in order to provide an empirical data. The subjects for this study were 104 infants and toddlers who were reared in an orphanage in D Metropolitan city. The instrument used for this study were anthropometric assessment and DDST for normative data of development. Data has been collected from September 1st, 1998 to August 31st, 2000 and were analyzed using SPSS/PC(Version 10.0) with frequency, mean, standard deviation, ANOVA and Chi-square test. The results of this study were as follows; 1. 30.8% of infants in orphanage had abnormal weight, 26.9% had abnormal length, and 22.1% had abnormal head circumference and most of them were distributed below 50 percentile of growth chart. 2. 53.8% of infants in orphanage had normal, 27.9% had qustionable, and 18.3% had abnormal developmental screening test results, especially, 31.5% of infants in orphanage ages 3 to 5 years had abnormal developmental screening test results, according to the Denver Developmental Screening Test(DDST). There was a significant developmental delay noted in the language and fine motor-adaptive sector. 3. It is anticipated that developmental delays would increase in severity by older the mean age of orphanage infants and longer the time being raised in orphanage. It would be concluded that the physical growth and developmental status of orphaned infants were very vulnerable and serious and it is suggested that there needed an effective intervention strategies to promote growth and development of infants in orphanage.

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주의력결핍과잉행동 장애, 아스퍼거 장애, 학습 장애 아동의 실행기능 비교 (Comparison of Executive function in Children with ADHD, Asperger's Disorder, and Learning Disorder)

  • 신민섭;김현미;온싱글;황준원;김붕년;조수철
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제17권2호
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    • pp.131-140
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    • 2006
  • Objectives : This study was conducted to investigate the deficits of executive function in children with ADHD, Asperger's Disorder(AD), and teaming disorder (LD), and to identify the differential characteristics of executive function deficits among three groups. Methods : The clinical group consisted of 46 children between the ages of 7 and 15 (16 ADHD, 16 LD, 14 AD). Neuropsychological tests for measuring cognitive function, attention and executive function were individually administered to children, and their performance scores were calculated based on the age norm for each test. Results : There was no significant difference in FSIQ, VIQ, and PIQ among the three groups. However, the AD group tended to show higher scores on the subtests of Information, Vocabulary and Digit Span, and lower score on Comprehension subtest than the ADHD and LD groups, while the LD group tended to show the lowest scores on the Information and Vocabulary subtests. On ADS, the ADHD group showed the highest omission and commission errors. All groups showed poor performances belonging to below 25 percentile ranks on executive function tests when compared to the age norms of normative group. The number of completed category on WCST was the smallest in the ADHD group, while the working memory score was the lowest in the LD group. Conclusion : These results suggest that ADHD, LD, and AD children have executive function deficit in common. However, the specific deficit areas in executive function are different for each group.

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핵심칠정척도 단축형의 표준화를 위한 예비적 설문 연구 (A Preliminary Survey Study on Standardization of the Core Seven Emotions Inventory-Short Form (CSEI-s))

  • 김지수;정문주;이도은;유영수;정인철;김재욱;강형원
    • 동의신경정신과학회지
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    • 제34권3호
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    • pp.125-139
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    • 2023
  • Objectives: This was a preliminary study to re-verify the reliability and validity of the Core Seven Emotions Inventory-Short Form (CSEI-s) and to establish standards for an objective scoring system such as T-scores and percentile for the normative group. Methods: Subjects were sampled through population-proportional regional allocation based on adults aged 20 or older and 65 or younger who voluntarily consented. Reliability was analyzed by performing an internal consistency (Cronbach's α) test and calculating means and standard deviations for each scale. The validity was analyzed between the CSEI-s and STAXI-K, SADS, COMOSWB, HADS, K-PANAS, Core emotions VAS. Results: The CSEI-s revealed notable gender discrepancies in aspects such as thought (思), fear (恐), and fright (驚), with women generally scoring higher than men. CSEI-s scores showed statistically significant differences in joy (喜) and thought (思) between those in their 20s and those in their 50s and 60s. As a result of the validity analysis, the seven-factor configuration was found to be statistically valid, and as a result of the correlation analysis with the coexistence scale, the correlation between each emotion and the seven emotions was found to be statistically significant. Cronbach's α for the CSEI-s was .891, showing statistically significant reliability. Conclusions: A preliminary study was conducted to standardize the shortened form of the Core Emotion Scale, and the reliability and validity were confirmed. A main survey of more people should be conducted in the future. Future results can contribute to revitalizing the development of oriental medicine evaluation tools and establishing an evidence base by standardizing the CSEI-s.