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P G Staats

Publications and source records attributed to P G Staats.

4 recordsLinked to original sources
PubMed2001

Development and validation of the Observation List for early signs of Dementia (OLD).

OBJECTIVE: Development and validation of a short Observation List of possible early signs of Dementia (OLD) for use in general practice. DESIGN: Stepwise development using reviews of publications and expert consensus. Field study for evaluation of reliability. Validation study (interviews, family forms) using existing valid and reliable measures. Use of data reduction techniques to construct a short version. Setting of field study Twenty-two GPs in 19 Dutch practices. PARTICIPANTS: The first two patients seen on 15 working days (n = 470) were observed. Inclusion: age > 75, without a known diagnosis of dementia. Exclusion: psychiatric treatment, severe depression, acute illness with confusion. Division of patients into three groups with no, intermediate, and the most signs (total of interviewed patients, n = 60; family forms, n = 39). Outcome measures Reliability (Cronbach's alpha and factor-analysis). Convergent validity using the Cognitive Screening Test (CST), the Word Learning Test (WLT, total and retention), the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE), the Groningen Activities Restriction Scale (GARS), and an IADL scale. Discriminant validity using the geriatric depression scale (GDS). Construct validity using a Principal Component Analysis (PRINCALS). Incremental validity using the intuitive opinion of the GP (McNemar test). RESULTS: Reliability in the total group 0.88, first factor explained variance 42.5%. Convergent validity (two-way ANOVA) results: CST (p = 0.00), WLT-total (p = 0.001), WLT retention (p = 0.00), IQCODE (p = 0.09). No statistically significant differences for GARS and IADL. GDS (p = 0.30) not different. PRINCALS first factor explained 48% of variance. The OLD added to the GP opinion (McNemar p = 0.00). Reliability short version 0.89 (interviewed group), 0.86 (total group). CONCLUSIONS: The OLD is a valid and reliable method to detect early signs of dementia in general practice that can indicate when it may be useful to employ existing screening instruments.

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PubMed2001

[Indicators of early Alzheimer dementia in family practice. Development and validation of the Observation List of Early Symptoms of Dementia (OLD)].

UNLABELLED: Aim of the study was the development and validation of a short observation list of possible early signs of dementia (OLD) for use in general practice. A stepwise development was carried out using reviews of publications and expert consensus. Experimental observations were carried out by 22 general practitioners in 19 Dutch practices. A field study (with interviews and family forms) was conducted out afterwards, to evaluate reliability and validity. Data reduction techniques were used to construct a short version. The first two patients seen on 15 working days (N = 470) were observed. INCLUSION CRITERIA: age > 75, without a known diagnosis of dementia. Exclusion: psychiatric treatment, severe depression, acute illness with confusion. The patients were divided into three groups with no, intermediate, and the most signs (total of interviewed patients n = 60; family forms n = 39). Cronbach's alpha and factor-analysis were used to evaluate the reliability. The Cognitive Screening Test (CST), the Word Learning Test (WLT; total and retention), the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE), the Groningen Activities Restriction Scale (GARS), and an IADL scale were used to evaluate convergent validity. The Geriatric Depression Scale (GDS) was used to evaluate discriminant validity. Construct validity was evaluated using PRINCALS. Incremental validity was evaluated using the intuitive opinion of the GP (McNemar test). The reliability in the total group was 0.88, the first factor explained 42.5% of the variance. Convergent validity (2-side ANOVA) results: CST (p = 0.00), WLT-total (p = 0.001), WLT retention (p = 0.00), IQCODE (p = 0.09). No statistically significant differences were found for GARS and IADL. The GDS (p = 0.30) showed no difference. The first factor of PRINCALS explained 48% of the variance. The OLD added to the GP opinion (McNemar p = 0.00). Reliability of the short version (12 items) was 0.89 (interviewed group), and 0.86 (total group). The conclusion is that the OLD is a valid and reliable method to detect early signs of dementia in general practice. (Partly adapted from: Hopman-Rock M, Tak ECPM, Staats PGM. Development and validation of the Observation List for early signs of Dementia (OLD). Int J Geriatr Psychiatry 2001 (in press)).

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PubMed1999

The effects of a psychomotor activation programme for use in groups of cognitively impaired people in homes for the elderly.

OBJECTIVES: To test the effects of the Psychomotor Activation Programme (PAP) on the behaviour and cognition of demented elderly people. DESIGN: Randomized controlled trial with an experimental group and a control group. Post-test after 6 months. SETTING: Group care projects for demented elderly people living in 11 different homes for the elderly in The Netherlands. PARTICIPANTS: One hundred and thirty-four subjects entered the study (72 in the experimental group and 62 in the control group), 42 of whom dropped out (27 in the experimental group and 15 in the control group). MEASUREMENTS: Individual behaviour and group behaviour were scored using two Dutch scales (BIP and SIPO respectively) developed and validated for use in psychogeriatric populations. Cognition was measured with the short and the long versions of the Cognitive Screening Test (CST-14 and CST-20). Disability was measured with the Barthel Index. Medicine use, falls, other accidents and life events were registered. RESULTS: The PAP had a beneficial effect on cognition (CST-14, F = 2.63, p < or = 0.05, effect size 0.4) (CST-20, F = 3.77, p < or = 0.05, effect size 0.5) and increased positive group behaviour in participants with relatively mild cognitive problems (SIPO, F = 4.46 p < or = 0.05). CONCLUSIONS: The PAP stabilizes cognitive performance and has some beneficial effects on behaviour. Positive findings were supported by a simultaneously conducted process evaluation.

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