• Title/Summary/Keyword: score function

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Adaptive Robust Regression for Censored Data (중도 절단된 자료에 대한 적은 로버스트 회귀)

  • Kim, Chul-Ki
    • Journal of Korean Society for Quality Management
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    • v.27 no.2
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    • pp.112-125
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    • 1999
  • In a robust regression model, it is typically assumed that the errors are normally distributed. However, what if the error distribution is deviated from the normality and the response variables are not completely observable due to censoring? For complete data, Kim and Lai(1998) suggested a new adaptive M-estimator with an asymptotically efficient score function. The adaptive M-estimator is based on using B-splines to estimate the score function and simple cross validation to determine the knots of the B-splines, which are a modified version of Kun( 1992). We herein extend this method to right-censored data and study how well the adaptive M-estimator performs for various error distributions and censoring rates. Some impressive simulation results are shown.

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Relationships of Self-esteem, Family Function, and Self-efficacy in Jilin Chinese- Korean Nursing Students (연변조선족 간호대학생이 지각한 자아존중감, 가족기능, 자아효능감과의 관계)

  • Cho, Kyoul-Ja;Park, Soon-Bok;Lee, Myung-Hee
    • Journal of East-West Nursing Research
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    • v.14 no.2
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    • pp.24-31
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    • 2008
  • Purpose: To survey and examine the relationships of self-esteem, family function, and self-efficacy in Chinese-Korean university students, and to provide supplemental data useful in counseling of university students during their adjustment to university life. Methods: A self-administered questionnaire with cross-sectional design was used. Participants were 103 Chinese undergraduate students in one university in Jilin, China. Descriptive statistics, t-test, ANOVA with Duncan's test and Pearson's correlation coefficients were used to analyze the data. Results: Mean scores were 3.40 for self-esteem, 2.32 for family function, and 2.93 for self-efficacy. The score for self-esteem differed significantly according to gender, body mass index (BMI), family number, education level of mother, and course of study. The mean score for family function differed significantly according to nursing satisfaction. The mean score for self-efficacy differed significantly according to BMI and nursing satisfaction. Positive correlations were evident between self-esteem and self-efficacy. Conclusions: To promote self-esteem and self-efficacy, development of nursing interventions to support family function is prudent.

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Predicting the Score of a Soccer Match by Use of a Markovian Arrival Process (마코비안 도착과정을 이용한 축구경기 득점결과의 예측)

  • Kim, Nam-Ki;Park, Hyun-Min
    • IE interfaces
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    • v.24 no.4
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    • pp.323-329
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    • 2011
  • We develop a stochastic model to predict the score of a soccer match. We describe the scoring process of the soccer match as a markovian arrival process (MAP). To do this, we define a two-state underlying Markov chain, in which the two states represent the offense and defense states of the two teams to play. Then, we derive the probability vector generating function of the final scores. Numerically inverting this generating function, we obtain the desired probability distribution of the scores. Sample numerical examples are given at the end to demonstrate how to utilize this result to predict the final score of the match.

A Study on Comparison of Yangseng (Traditional Health Behavior), Depression, Anxiety and Cognitive Function between the Elderly Women Living Alone and the Aged in the Living with Family (독거 여성 노인과 가족 동거 여성 노인의 양생 실천 수준과 불안, 우울, 인지기능에 대한 비교 연구)

  • Kang, Hee-Chul
    • Journal of Oriental Neuropsychiatry
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    • v.25 no.2
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    • pp.123-132
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    • 2014
  • Objectives: The purpose of this study was to investigate the levels of Yangseng (Traditional Health Behavior), depression, anxiety, cognitive function between the elderly women living alone and the aged in the living with family. Methods: The subjects of this study were 137 elderly women aged between 65 and 80. They were evaluated with the Tool in Measuring Yangseng (TMY), Korean Geriatric Depression Scale (KGDS), State-Trait Anxiety Inntory (STAI) and Korean of the Mini-Mental State Examination (MMES-K). Depending on whether or not they lived alone, they were divided into two groups; group living alone (L.A.) and group living with family (L.F.). Results: In TMY score, there were statistically significant differences in characteristics of Mind, Diet, Sleep and total score between L.A. (63 persons) and L.F. (74 persons). Group living alone (L.A.) had significantly higher score in KGDS and STAI compared with other group (L.F.). The values of KGDS and STAI comparing to the values of Mind, Diet, Sleep, Exercise and total score in this study resulted in negative correlations which showed statistically significant. Conclusions: Above results suggest that between L.A. and L.F, there are significant difference in physical and mental health. TMY is enough to estimate health of the aged. These results can be used for Yangseng health promoting program based on Korean traditional medicine.

Validity and Reliability on the Walking Index for Spinal Cord Injury in the walking assessment of the SCI patient (척수손상환자에서 보행 기능 평가도구인 WISCI II의 타당도와 신뢰도)

  • Lee Hyoung-Soo;Jeong Chan-Ju;Yang Hoi-song;Shin Young-Il
    • The Journal of Korean Physical Therapy
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    • v.16 no.3
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    • pp.142-151
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    • 2004
  • The purpose of this study was to determine the validity and the reliability of the WISCI II to ascertain its value in the walking function evaluation of spinal cord injury patient. The WISCI II consists of 20 variables with a total valus ranging from 6 to 20 score. A group of 23 spinal cord injury patient were included in this study. To determine the validity, kappa statistics between the WISCI II and SCIM II were measured. The result of this study are as follows: 1) In the validity study, the kappa statistics between the WISCI II and SCIM II were 0.79 and 0.84 for an initial total score and a discharge total score respectively, indicating a reasonable agreement between the two test. 2) In the reliability study, the Cronbach's alpha coefficient was 0.83 and 0.95 for total score indicating a good internal consistency. The finding suggest that the WISCI II demonstrated an acceptable validity and reliabilit for the evaluation of walking function capacity of spinal cord injury patient in clinical practice.

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Physical Function and Psychological Status in the Elderly those who Experienced a Fall or not (재가 노인의 낙상 경험 유무에 따른 신체적 기능과 정서 상태)

  • Chang, Chong-Mi;Kang, Hyun-Sook
    • The Korean Journal of Rehabilitation Nursing
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    • v.7 no.1
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    • pp.48-57
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    • 2004
  • Introduction : The purposes of this study was to examine physical function and psychological status in the elderly caused by a fall. Method : The study was designed as a descriptive survey. Its subjects consisted of the 299 elderly over 65 years. Collected data were analyzed by the SPSS 10.0 program package. Results : The result of this study are as follows : 1) The score for ADL was significantly lower in the fall group. 2) Grip strength was significantly lower in the fall group. 3) Lapse of the motion sitting and standing was significantly longer in the fall group. 4) One-leg-standing time with the eyes open and closed was significantly shorter in the fall group. 5) Return time of 3m walk was significantly longer in the fall group. 6) The score for dizziness was significantly higher in the fall group. 7) The score for fear for a fall and depression were significantly higher in the fall group. 8) The score for falls efficacy was significantly lower in the fall group. Conclusion: ADL, muscle strength, balance, dizziness, fear for a fall, falls efficacy and depression turned out to be closely related to the fall of the elderly. Therefore, it would be required to develop and applicate the fall prevention program regarding these above risk factors.

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Relationships between Gross Motor Capacity and Neuromusculoskeletal Function in Children with Cerebral Palsy after Short-Term Intensive Therapy

  • Kim, Ki-Jeon
    • The Journal of Korean Physical Therapy
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    • v.30 no.3
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    • pp.90-95
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    • 2018
  • Purpose: To investigate the relationship between gross motor capacity and neuromuscular function in children with cerebral palsy (CP) through a short-term intensive intervention. Methods: Twenty-four children younger than 6 years of age (17 boys, 7 girls, mean $age{\pm}standard$ deviation, $42.71{\pm}14.43months$) who were diagnosed with CP underwent short-term intensive treatment for 8 weeks. An evaluation of gross motor function capacity using the gross motor function measure (GMFM-66 and GMFM-88) was performed to measure muscle strength, selective motor control (SMC), and spasticity, factors related to neuromusculoskeletal function. Changes in spasticity, strength, range of motion, selective motor function, and exercise intensity scores were evaluated in terms of the gross motor function classification system (GMFCS) and ages. Results: The GMFM-88 and GMFM-66 scores significantly increased, by $4.32{\pm}4.04$ and $2.41{\pm}1.51%$, respectively, following the 8-week intervention. The change in the GMFM-66 score did not reflect a statistically significant difference in the GMFCS level. However, there was a statistically significant difference in the GMFM-88 score change in individuals at GMFCS Level III, the strength and spasticity of subjects at GMFCS Levels I-II did not significantly differ (p<0.05). The changes in the GMFM-66 scores for strength, SMC, range of motion (ROM), and spasticity significantly differed according to age (p<0.05) in children aged 36 months and older. Overall, there was a statistically significant difference in strength, SMC, and spasticity (p<0.05) before and after intensive short-term treatment. Conclusion: The 8-week short-term intensive care intervention improved the motor function score of study participants, emphasizing the need for early intervention and additional research in this area.

The Relationships between Knowledge of the Kidney, Self-efficacy, and Kidney Function in Pre-dialysis Patients with Chronic Renal Insufficiency (투석 전 만성신장질환자의 신장 지식, 자기효능감, 신장 기능의 관계)

  • Cha, Eunji;Park, Hyojung
    • Korean Journal of Adult Nursing
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    • v.27 no.5
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    • pp.505-514
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    • 2015
  • Purpose: The purpose of this study was to examine their levels of knowledge of the kidney, self-efficacy, and kidney function in pre-dialysis patients with chronic renal insufficiency. Methods: A total of 142 pre-dialysis patients with chronic renal insufficiency were recruited from a nephrology clinic of a hospital in Korea. Participants' knowledge of the kidney, self-efficacy, and kidney function were measured, and the correlations between these factors were computed. Results: The levels of knowledge of the kidney were moderate, with a mean score of $12.30{\pm}5.35$. Knowledge level was significantly correlated with age, education level, occupation, income, physical symptoms, and information resources (p<.05). The mean score for self-efficacy was $6.06{\pm}2.00$. Self-efficacy was significantly associated with patients' age, education level, occupation, income, cigarette use, and information resources (p<.05). The mean score for kidney function was $35.66{\pm}18.68mL/min/1.73m^2$. Kidney function was significantly correlated with use of medications and drinking behavior (p<.05). Knowledge of the kidney was significantly correlated with self-efficacy (r=.31, p<.001), but not with kidney function. There was a significant correlation between self-efficacy and kidney function (r=.30, p<.001). Multiple regression analysis revealed that self-efficacy and drinking behavior accounted for 11% of the variance in kidney function of pre-dialysis patients with chronic renal insufficiency. Conclusion: Nursing interventions are necessary to increase self-efficacy among pre-dialysis patients with chronic renal insufficiency in order to maintain their kidney function.

A Study of Activities do Daily Living Performance on Arthritic Elderly Patients (노인의 퇴행성 슬관절염과 일상생활 수행력에 관한 연구)

  • Park Rae-Joon;Park Young-Han
    • The Journal of Korean Physical Therapy
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    • v.14 no.4
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    • pp.183-203
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    • 2002
  • To know the effect of index of social ability (ISA) and function of social life (FSL) with activities of daily living (ADL) and instrumental activities of daily living (IADL), we carried out a study on the elderly with osteoarthritis daily living in Daegu city for 4 months, from April to July 2002. The followings were observed: 1. The score of functional disability of knee, ADL and ISA were better at lower age (p < 0.01). 2. The younger they are, the better FSL they have. The lower age group has good FSL (p < 0.01). 3. Weight affects more to the under 49Kg group than 50-59Kg group and 60-69Kg group in functional disability of knee, while it doesn't make much difference for the other groups (p > 0.05) and other assessment index doesn't show any relationship with weight. 4. Regarding relat ionship with height , taller group has better knee functions: it's proved by post hock examination that the over 160cm group has much higher knee function than the other groups (p < 0.05). In case of ADL, the over 160cm group and under 149cm group were better than 150$\∼$159cm group. (p < 0.01) . 5. ISA was also different depending on height . It was proved that FSL was the better for the over 160cm group than for the others as a result of post hock examination (p < 0.05). 6. In regard of how many months have passed since the attack of functional disability of knee, knee joint function was better for the 12mon$\∼$36mon group than for the others and the score of ADL was lower for the 12mon$\∼$36mon group than for the others (p < 0.01). ISA was lower for the 12mon$\∼$36mon group and the under 6mon group than for the other groups (p < 0.01). FSL was lower for the 12mon$\∼$36mon group and the under 6mon group than the other groups. (p < 0.01). 7. Comparing left knee with right one, the problem with left knee has lower score of functional disability in all items (p < 0.01). 8. Considering friction noise, knee joint function was slightly better for non-friction noise-group, but it's not statistically significant though. ADL and ISA were better for non-friction noise-group (p < 0.01), while no statistical significance was found in FSL, 9. Knee joint function was better for the group who doesn't have limitation on range of knee flexion motion (p,0.05) but no other difference was found in other items from this group. 10. Limitation on range of knee flexion motion has no statistical difference in ADL and FSL. However, ISA was better for the non-limitation group (p < 0.05) . 11. Knee joint function score has high correlation with ISA (r=0.812, p < 0.01) and FSL (r=0.732, p < 0.01) , which shows the better knee joint function, the higher the score. 12. ISA and FSL were highly correlated: the better ISA, the better FSL (r=0.893, p < 0.01), while ADL has no correlation with either knee joint function or ISA or FSL.

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Relationship between Metabolic Syndrome, Metabolic Syndrome Score, Insulin Resistance and Beta Cell Function in Korean Adults with Obesity (대한민국 비만 성인에서 대사증후군과 인슐린저항성 및 베타세포기능의 관련성)

  • Yoon, Hyun
    • Korean Journal of Clinical Laboratory Science
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    • v.52 no.4
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    • pp.327-334
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    • 2020
  • The present study was conducted to assess the relationship between metabolic syndrome, metabolic syndrome score, homeostasis model assessment of insulin resistance (HOMA-IR), and beta-cell function (HOMA-B) in obese Korean adults. The study included 1,860 adults aged 20 years or older from the 2010 Korean National Health and Nutrition Examination Survey (KNHANES) data. Metabolic syndrome and metabolic syndrome score (MSS) were positively associated with HOMA-IR (both P<0.001). HOMA-B levels of elevated blood pressure (P<0.001) and elevated fasting blood glucose group (P<0.001) were significantly lower than the normal group. However, the HOMA-B levels of abdominal obesity (P=0.003) and reduced high-density lipoprotein cholesterol group (P=0.030) were significantly higher than the normal group. Nevertheless, metabolic syndrome (P<0.001) and MSS (P<0.001) were inversely associated with the HOMA-B levels. In conclusion, metabolic syndrome and MSS were positively associated with insulin resistance and inversely associated with beta-cell function in Korean adults with obesity.