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  • 1
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Chronische Polyarthritis ; Health Assessment Questionnaire Disability Index ; deutsche Version ; Funktionsfragebogen Hannover ; Key words Rheumatoid arthritis ; Health Assessment Questionnaire Disability Index ; German version ; Hannover Functional Ability Questionnaire
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Zielsetzung: Ziel der Studie war die Übersetzung und die Validierung einer deutschen Version des Health Assessment Questionnaire Disability Index (HAQ) und der Vergleich seiner psychometrischen Eigenschaften mit der Version-P und der Version-PR des Funktionsfragebogens Hannover. Methoden: Nach der Übersetzung wurde die Test-Retest-Reliabilität bei 32 ambulanten Patienten der Abteilung Rheumatologie der Medizinischen Hochschule Hannover mit Hilfe der Pearson-Korrelation überprüft. Eine Woche nach der ersten Beantwortung wurde den Patienten der Fragebogen erneut zugesandt. Zur Validierung wurden 110 stationären Patienten in 3 verschiedenen Kliniken vorgelegt. Alle Patienten erfüllten die Kriterien des American College of Rheumatology von 1987 oder die Rom-Kriterien der inaktiven chronischen Polyarthritis (cP). Zur Beurteilung der Kriteriumsvalidität zogen wir den Keitel-Funktionstest (KFT) und die modifizierte Steinbrocker-Klassifikation (mSK) der funktionellen Behinderung heran. Die interne Konsistenz wurde mit Hilfe des Cronbach Koeffizienten Alpha (CKA) bestimmt. Zur Erfassung der Konstruktvalidität wurden die HAQ- und FFbH-Scores mit verschiedenen klinischen und laborchemischen Variablen verglichen und zur Aufklärung der Varianz multiple Regressionen berechnet. Ergebnisse: Die Test-Retest-Reliabilität des HAQ betrug r=0,94. Es zeigte sich ein CKA von 0,91 (HAQ), 0,90 (FFbH-P) und 0,93 (FFbH-PR). Im Vergleich zum KFT ergab sich ein Korrelationskoeffizient von r=–0,73 (HAQ), r=+0,74 (FFbH-P) und r=+0,71 (FFbH-PR) im Vergleich zur mSK ein r=+0,75 (HAQ), r=–0,72 (FFbH-P) und r= –0,70 (FFbH-PR). Der Korrelationskoeffizient des HAQ/FFbH-P betrug r=–0,87 bzw. r=–0,88 beim HAQ/FFbH-PR. Die Korrelationen zwischen den klinischen und laborchemischen Parametern reichten von r=±0,58 (Schmerz/HAQ) bis r=±0,11 (Anzahl der geschwollenen Gelenke/FFbH-PR). In multiplen, rückwärtsgerichteten Regressionsanalysen fanden sich r2-Werte von 0,64 (HAQ), 0,61 (FFbH-P) und 0,59 (FFbH-PR). Der Schmerz erklärte etwa 1/3 und die Bewegungseinschränkung 16–21% der Varianz. Schlußfolgerung: Die hier vorgestellte deutsche Version des HAQ und die zwei verschiedenen Versionen des FFbH erwiesen sich als reliable und valide Instrumente zur Messung der funktionellen Behinderung in einem deutschsprachigen Patientenkollektiv mit cP. Das mit dem HAQ und den beiden Versionen des FFbH gemessene Konstrukt zeigte eine hohe Übereinstimmung.
    Notes: Summary Objective: To translate the Health Assessment Questionnaire Disability Index (HAQ) into a German version, to validate and to compare its properties with two different versions of the Hannover Functional Ability Questionnaire (HFAQ) in a German speaking population. Methods: The test-retest reliability was tested by Pearson correlation in 32 outpatients of the Department of Rheumatology of the Medizinische Hochschule Hannover. For retesting, the questionnaire was mailed to them 1 week later. To validate the questionnaire it was administered to 110 inpatients in three different hospitals. All patients fulfilled the American College of Rheumatology 1987 revised criteria of rheumatoid arthritis (RA) or the Rome criteria of definitive inactive RA. The internal consistency was measured by Cronbach‘s coefficient alpha (CCA). To assess criterion validity we compared the HAQ and the two versions of the HFAQ with Keitel‘s test (KT) and the modified Steinbrocker classification (mSC). Construct validity was assessed by comparing these instruments with different clinical and laboratory variables. A multivariate analysis was used to identify the most important factors that are influencing the HAQ- and HFAQ-scores. Results: Test-retest reliability of the HAQ was r=0.94. CCA was 0.91 (HAQ), 0.90 (HFAQ-P) and 0.93 (HFAQ-PR). The KT Pearson correlation coefficients reached r=–0.73 (HAQ), r=+0.74 (HFAQ-P) and r=+0.71 (HFAQ-PR). The mSC correlated r=+0.75 (HAQ), r=–0.72 (HFAQ-P) and r=–0.70 (HFAQ-PR). The correlation coefficients of HAQ/HFAQ-P was r=–0.87 and of HAQ/HFAQ-PR r=–0.88. The correlations between other clinical and laboratory variables reached from r=±0,58 (pain/HAQ) to r=±0,11 (number of swollen joints/HFAQ-PR). In backward multiple regression analysis 59–64% of the variance of disability measured by the questionnaires was explained predominantly by pain (32–33%) and by range of motion (16–21%). Conclusion: The German version of the HAQ presented here and the two versions of the HFAQ are reliable and valid instruments for measuring functional disability in a German-speaking population with RA. The construct measured by the HAQ and both versions of the HFAQ showed a high degree of correspondence.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0340-1855
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Social Science & Medicine 29 (1989), S. 107-108 
    ISSN: 0277-9536
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1365-2133
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background  Atopic dermatitis (AD) is a chronic or chronically relapsing inflammatory skin condition that can have a considerable impact on those affected. There are a number of instruments available to measure outcome in dermatological conditions but none have been developed specifically for AD. In addition, most measure symptoms and/or daily functioning, which are potential influences on quality of life (QoL) rather than assessments of the construct itself.Objectives  The aim of the current study was to develop a new instrument specifically designed to measure QoL in adults with AD—the Quality of Life Index for Atopic Dermatitis (QoLIAD).Methods  The instrument was developed based on the needs-based model of QoL and was produced in several different countries simultaneously. Its content was derived from 65 in-depth interviews with relevant patients in the U.K., Italy and the Netherlands. The initial version of the measure was produced in U.K. English and translations were produced for the Netherlands, Italy, Germany, France and the U.S.A. using a dual translation panel methodology. A Spanish version was developed using the same adaptation process after the instrument was finalized. Field-test interviews were conducted with approximately 20 patients in each country to assess face and content validity. The instrument [in addition to the Dermatology Life Quality Index (DLQI) and the Psychological General Well-Being Schedule (PGWB)] was then administered to up to 300 AD patients in each country at two time points to finalize the instrument and test its psychometric properties.Results  The initial version of the QoLIAD had 56 items that reflected the areas of need fulfilment identified in the qualitative interviews as having been affected by AD: mental and emotional stimulation, physical and emotional stability, security, sharing and belonging, self-esteem, personal development and fulfilment. Comments from patients in field-test interviews resulted in the removal of 14 items, to leave a 42-item instrument that was considered relevant and acceptable. The number of patients participating in the survey were 286 in the U.K., 46 in the Netherlands, 213 in France, 187 in Germany, 178 in the U.S.A. and 83 in Spain. Application of the Rasch model to these data identified the final 25-item QoLIAD. Unidimensionality was confirmed, with deviation of the total scale from the Rasch model evident at a single time point in one country only (the U.K.). All language versions, with the exception of the Dutch measure, had test–retest reliability coefficients in excess of 0·85. The test–retest in the Netherlands was 0·80. However, this country had the smallest sample size and the corresponding reliability for the DLQI was only 0·40. The QoLIAD had adequate internal consistency and the initial indications of construct validity were good. The levels of association with the DLQI indicated that the two instruments measure related but distinct constructs.Conclusions  The QoLIAD is a practical, reliable, valid and culturally applicable instrument for measuring the impact of AD and its treatment on QoL in clinical trials or in routine clinical practice.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1573-2649
    Keywords: Quality of life ; questionnaire ; recurrent genital herpes.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This paper describes the international development and psychometric testing of the Recurrent Genital Herpes Quality of Life Questionnaire (RGHQoL), a condition-specific quality of life (QoL) instrument. The theoretical foundation for the measure is the needs-based model of QoL and the content of the instrument was derived from in-depth qualitative interviews with relevant patients in the UK. Versions of the RGHQoL were required for the UK, USA, Italy, Germany, France and Denmark for use in international clinical trials. The results indicate that the final 20 item measure has good reliability, internal consistency and validity for all language versions. A small responsiveness study in Denmark suggested that the measure is sensitive to changes in QoL associated with the initiation of suppression treatment for recurrent genital herpes (RGH). It is concluded that the RGHQoL is a valuable instrument for inclusion in clinical trials. The psychometric properties of the instrument are such that it may also be used to monitor the progress of individual patients.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 568 (1989), S. 62-72 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A Technique for the Continuous Determination of Rates of Transport.-Experiments on the Systems GeO2/WO2/H2O and NiSO4/PbSO4/PbCl2We describe a computer controlled device for continuously measuring rates of transport in closed ampoules. The applicability and efficiency of the method is demonstrated by two examples. For the system GeO2/WO2/H2O we could prove, that the non steady state transport is caused by the influence of the amount of the deposited solid phase in the sink. By means of the NiSO4/PbSO4/PbCl2 system we could demonstrate, that the rates of transport of the successive deposition of PbSO4 and NiSO4 could be determined in a single experiment.
    Notes: Es wird eine Meßanordnung beschrieben, mit der es gelingt, Transportraten in abgeschlossenen Ampullen kontinuierlich zu messen und rechnerisch zu verarbeiten. Die Einsatzmöglichkeiten und die Leistungsfähigkeit der Methode werden an 2 Beispielen gezeigt. Im System GeO2/WO2/H2O konnte nachgewiesen werden, daß das nichtstationäre Verhalten durch den Einfluß der im Senkenraum gebildeten Bodenkörpermenge auf die Abscheidungsrate verursacht wird. Anhand des Systems NiSO4/PbSO4/PbCl2 läßt sich zeigen, daß die Transportraten für die aufeinanderfolgende Abscheidung von PbSO4 und NiSO4 in einem Experiment bestimmt werden können.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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