1.Relationships between physical activity, ADL capability and fall risk in community-dwelling Japanese elderly population.
Tomohisa YOKOYA ; Shinichi DEMURA ; Susumu SATO
Environmental Health and Preventive Medicine 2007;12(1):25-32
OBJECTIVEThe purpose of this study was to clarify the relationships among fall risk, physical activity habits, and ADL capability in a community-dwelling Japanese elderly population.
METHODSThe subjects were 1,407 Japanese aged 65 or older (604 males, 803 females). Fall risk was evaluated using the Falling Assessment Chart of Suzuki et al. (2003). Physical activity habits such as the frequency of leaving the house, the use of transportation, the frequency of physical exercise, and interests were evaluated. ADL capability was evaluated using the Tokyo Metropolitan Institute of Gerontology Index of Competence.
RESULTSApproximately 25% of the subjects had a high fall risk (score of 5 or more). Fall risk increased with age and ADL capability decreased with age. The group with a low fall risk (score<5) had a significantly higher ADL capability than the group with a high fall risk (score≥5). From results of two-way ANCOVA (gender×physical activity habits) with age as the covariate, the fall risk of people who regularly go on leaving the house, exercise, and have interests tended to be low. Further more, the relationships between the scores and physical activity habits were examined by two-way ANCOVA with age and ADL capability as the covariates. There were significant differences in the frequency of leaving the house, and elderly persons who leaved regularly the house, had a low fall risk.
CONCLUSIONSThis study showed that fall risk is closely related to ADL capability, and that the frequency of leaving the house is very important for reducing fall risk.
2.Agreement in depression determination among four self-rating depression scales applied to Japanese community-dwelling elderly.
Shinichi DEMURA ; Susumu SATO ; Nobuhiko TADA ; Jinzaburo MATSUZAWA ; Hiroshi HAMASAKI
Environmental Health and Preventive Medicine 2006;11(4):177-183
OBJECTIVEIn this study, we examined the characteristics of depression determination using four representative self-rating depression scales (Geriatric Depression Scale, GDS; Self-rating Depression Scale, SDS; Center for Epidermiologic Studies Depression Scale, CES-D; and Carroll Rating Scale, CRS) applied to Japanese community-dwelling elderly.
METHODSSubjects were 563 community-dwelling independent elderly living in twelve prefectures (330 males, 68,9±6.3 yr; 233 females, 68.1±5.8 yr).
RESULTSDepression rates determined using SDS (45.8%) and CES-D (68.6%) were higher than those determined using GDS (5.7%) and CRS (14.7%). Although correlations of depression scale scores among the four scales were significant and comparable (r: 0.61 (GDS vs. SDS, p<0.01) to 0.78 (SDS vs. CES-D, p<0.01)), the agreement in depression determination varied among scales (kappa coefficients: 0.05 (GDS vs. CES-D, p>0.05) to 0.46 (SDS vs. CES-D, p<0.01)).
CONCLUSIONSSimilarities in depression determination were found between GDS and CRS, and between CES-D and SDS. Depression rates determined on the basis of cut-off point for each scale were higher for CES-D and SDS than for GDS and CRS. Depression determination using a four-point rating scale may overestimate a slightly depressive symptom, compared with that using a two-point scale.
3.Urban-rural differences in subjective symptoms of fatigue and their relations with lifestyle factors in young male Japanese students.
Environmental Health and Preventive Medicine 2003;8(2):52-58
OBJECTThe purposes of this study were to investigate the actual status in subjective symptoms of fatigue (SSF) and lifestyles of young male students living in two different life spheres of the Tokyo metropolitan area and a rural area, and to find, regional differences in these characteristics and relations between SSF and lifestyles in school life.
METHODSA questionnaire regarding SSF and lifestyle was administered to 412 healthy male students (16-18 yr) attending the two National Colleges of Technology located in the Tokyo metropolitan area (MA) and a local city (LC). Statistical techniques such as a chi-square test and Hayashi's Quantification Theory I analysis were used to examine relations between SSF and lifestyles.
RESULTS AND CONCLUSIONA significant difference was found only in "feeling of physical disintegration,", and the MA group was higher than the LC group. The MA students showed shorter sleeping hours and earlier awaken time compared with LC students. In the relations between SSF and lifestyles, sleeping habit was an important factor significantly relating to SSF in both groups. Paying attention to good sleeping habits is an important countermeasure for preventing SSF in the male students.
4.Gender difference of subjective symptoms of fatigue among Japanese adolescents.
Hidetsugu KOBAYASHI ; Shinichi DEMURA ; Yoshinori NAGASAWA
Environmental Health and Preventive Medicine 2003;8(2):41-46
OBJECTIVESThe purpose of this study was to quantitatively and qualitatively examine a gender difference of subjective symptoms of fatigue (SSF) in healthy students.
METHODSThe subjective fatigue scale for young adults (SFS-Y) consisted of the following 6 subscales: concentration thinking difficulty, languor, reduced activation, reduced motivation, drowsiness and feeling of physical disintegration. The SFS-Y was administered to 5,435 students aged 15 to 20 yr. Student's t test was used to examine quantitative gender differences for items and factor scores. The qualitative gender difference was examined by comparing factor structures obtained from confirmatory factor analysis. A similarity in the factor structure was evaluated from: 1) interpreted factor names, 2) factor loadings, 3) degree of fit, and 4) congruence coefficient.
RESULTSA complaint of SSF shows gender differences, but the difference is not remarkable. The factor structure of SSF in males and females is suggested to be the same, because six factors with the same name were interpreted in both groups and the similarity of factor structure was very high.
CONCLUSIONThere are some qualitative gender differences in SFS, but no qualitative gender differences in factor structure.
5.Problems with the Japanese version of the Center for Epidemiologic Studies Depression (CES-D) scale when applied to Japanese independent community-dwelling elderly: an examination of the factor structure.
Environmental Health and Preventive Medicine 2003;8(5):184-190
PURPOSEThe present study aimed to determine the problems of the Japanese version of the Center for Epidemiologic Studies Depression (CES-D) scale when applied to Japanese independent community-dwelling elderly focusing on its factor structure.
METHODSThe subjects were 1791 community-dwelling independent elderly aged 60 and over (848 males and 943 females). This study used the Japanese version of the CES-D scale to assess depression in the elderly.
RESULTSFrom the results of an exploratory factor analysis, the four factors of somatic symptoms, depression affect, positive affect and relation with others were interpreted.These factors were the same as those in the previous study, but the items making up each subscale differed. Therefore, the construct validity of each subscale was not necessarily assured. In the confirmatory factor analysis, goodness-offit was high for both the first and second-order factor models. In examining the validity by Akaike's information criterion (AIC), the second-order factor model assuming depression as a higher-order factor among the four factors was a better fit than the first-order factor model. Although the reliability of each subscale was not sufficient, adequate reliability was assured in the total scale.
CONCLUSIONAn assessment of depression using the Japanese version of the CES-D scale should be conducted using the total score, while a re-examination of items making up each subscale is needed.
6.Activity groupings reflecting functional characteristics required in daily life in institutionalized dependent females in the old old elderly group.
Shinichi DEMURA ; Susumu SATO ; Masaki MINAMI ; Kohsho KASUGA
Environmental Health and Preventive Medicine 2003;8(5):166-172
OBJECTIVESThis study aimed to determine the activity groupings reflecting functional characteristics required in daily life for the institutionalized dependent females in the old-old elderly group, by examining the interrelationships of activities based on actual achievement characteristics.
METHODSThe participants were 697 dependent elderly living at welfare institutions in Japan and 344 old-old females were used for analysis. Factor analysis, based on Promax with the Kaiser Normalization method, was conducted using 74 activities of daily living (ADL) items to determine activity groups. Furthermore, whether each activity group could be classified into sub-groups was confirmed by applying factor analysis to the activities consisting of each activity group.
RESULTSFour activity groups of lower extremity activities, manual activities, changing and holding posture activities, and upper extremity and dexterous manual activities were interpreted. Except for the manual activity group, these activity groups were classified into two sub-groups.
CONCLUSIONSThese activity groupings were characterized by similarities of the body parts used in achievement and the difficulty of activity. The activity groupings obtained in this study are considered to be useful in ADL assessment focusing on evaluating functional characteristics of the dependent elderly.
7.Activity Groupings Reflecting Functional Characteristics Required in Daily Life in Institutionalized Dependent Females in the Old Old Elderly Group
Shinichi DEMURA ; Susumu SATO ; Masaki MINAMI ; Kohsho KASUGA
Environmental Health and Preventive Medicine 2003;8(5,6):166-172
Objectives: This study aimed to determine the activity groupings reflecting functional characteristics required in daily life for the institutionalized dependent females in the old-old elderly group, by examining the interrelationships of activities based on actual achievement characteristics. Methods: The participants were 697 dependent elderly living at welfare institutions in Japan and 344 old-old females were used for analysis. Factor analysis, based on Promax with the Kaiser Normalization method, was conducted using 74 activities of daily living (ADL) items to determine activity groups. Furthermore, whether each activity group could be classified into sub-groups was confirmed by applying factor analysis to the activities consisting of each activity group. Results: Four activity groups of lower extremity activities, manual activities, changing and holding posture activities, and upper extremity and dexterous manual activities were interpreted. Except for the manual activity group, these activity groups were classified into two sub-groups. Conclusions: These activity groupings were characterized by similarities of the body parts used in achievement and the difficulty of activity. The activity groupings obtained in this study are considered to be useful in ADL assessment focusing on evaluating functional characteristics of the dependent elderly.
Elderly
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Old episode
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Manuals
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livin
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g <3>
8.Problems with the Japanese Version of the Center for Epidemiologic Studies Depression (CES-D) Scale when Applied to Japanese Independent Community-Dwelling Elderly: an Examination of the Factor Structure
Environmental Health and Preventive Medicine 2003;8(5,6):184-190
Purpose: The present study aimed to determine the problems of the Japanese version of the Center for Epidemiologic Studies Depression (CES-D) scale when applied to Japanese independent community-dwelling elderly focusing on its factor structure. Methods: The subjects were 1791 community-dwelling independent elderly aged 60 and over (848 males and 943 females). This study used the Japanese version of the CES-D scale to assess depression in the elderly. Results: From the results of an exploratory factor analysis, the four factors of somatic symptoms, depression affect, positive affect and relation with others were interpreted. These factors were the same as those in the previous study, but the items making up each subscale differed. Therefore, the construct validity of each subscale was not necessarily assured. In the confirmatory factor analysis, goodness-of-fit was high for both the first and second-order factor models. In examining the validity by Akaike's information criterion (AIC), the second-order factor model assuming depression as a higher-order factor among the four factors was a better fit than the first-order factor model. Although the reliability of each subscale was not sufficient, adequate reliability was assured in the total scale. Conclusion: An assessment of depression using the Japanese version of the CES-D scale should be conducted using the total score, while a re-examination of items making up each subscale is needed.
Japanese language
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2-Chloroethyl 2-(4-1,1-dimethylethyl) phenoxy-1 methylethyl ester
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Upper case dee
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Elderly
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Cancer patients and suicide and depression
9.Utility of an ADL Index for Institutionalized Elderly People: Examining Possible Applications for Independent Elderly People
Shinichi DEMURA ; Susumu SATO ; Masaki MINAMI
Environmental Health and Preventive Medicine 2001;6(1):33-40
The purpose of this study was to clarify the application range and utility of an ADL index for disabled elderly people (Demura et al., 2000), by examining the ADL characteristics of an elderly population when this index was applied to disabled and independent elderly people. Subjects of this study were 697 Japanese institutionalized disabled elderly people and 482 independent elderly people (ID) living at home. Disabled elderly people were classified into four groups based on conditions of use of assisting devices for movement; D1 did not use assisting devices; D2 used a stick or a walker; D3 used a wheelchair; D4 was immobile. From the findings of comparing achievement proportions, ADL score and the distribution of total score among elderly groups, it was suggested that this ADL index can assess gradually from disabled elderly people who cannot move to independent elderly people. Since this index classifies independent elderly people and disabled elderly people with high probability, it can evaluate if elderly people can maintain a functional level needed for independent living, and can recognize the symptoms of disability. Furthermore, this study proposed useful activities to discriminate the functional level for each elderly group. Although it is important to comprehensively assess ADL ability, further use of this ADL index to discriminate the functional level of an elderly population, by making use of these useful activities, is expected.
Elderly
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Activities of Daily Living
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Disabled Persons
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Persons
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livin
10.ADL Ability Characteristics of Partially Dependent Older People: Gender and Age Differences in ADL Ability
Susumu SATO ; Shinichi DEMURA ; Kiyoji TANAKA ; Kohsho KASUGA ; Hidetsugu KOBAYASHI
Environmental Health and Preventive Medicine 2001;6(2):92-96
Age and gender differences in ADL ability were investigated using 568 Japanese partially dependent older people (PD, Mean age=82.2 ±7.76 years) living in welfare institutions. The subjects were asked about 17 ADL items representing 7 ADL domains by the professional staff working at subjects’ institutions. Each item was assessed by a dichotomous scale of “possible” or “impossible”. Item proportions of “possible” response were calculated for gender and age groups (60s, 70s, 80s and 90s). Two-way analysis of variance (ANOVA) using the arcsine transformation method indicated no gender differences. Significant decreases in ADL ability with aging were found in 13 of the 17 items. The dependency of ADL in the PD significantly increases with aging, and there is no significant difference in this trend between men and women. The dependency of more difficult activities using lower limb increase from the 70s, and independency of low-difficult activities such as manual activities, feeding and changing posture while lying is maintained until the 80s and over.
Activities of Daily Living
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Ability
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Gender
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PUPILLARY DISTANCE
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age differences

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