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Psychol Med ; 29(6): 1367-75, 1999 Nov.
Article in English | MEDLINE | ID: mdl-10616942

ABSTRACT

BACKGROUND: People with a learning disability are increasingly being encouraged to take a more active role in decisions about their psychological and medical treatment, raising complex questions concerning their ability to consent. This study investigates the capacity of people with a learning disability to consent in the context of three treatment vignettes, and the influence of verbal and memory ability on this capacity. METHODS: Measures of verbal ability, memory ability and ability to consent to treatment (ACQ) were administered to 40 people with a learning disability. The ACQ consisted of three vignettes depicting a restraint, psychiatric or surgical intervention. These were followed by questions addressing people's ability to understand the presenting problem; the nature of the proposed intervention; the alternatives, risks and benefits; their involvement in the decision-making process; and their ability to express a clear decision with a rationale for treatment. RESULTS: Five people (12.5%) could be construed as able to consent to all three vignettes; 26 (65%) could be construed as able to consent to at least one. The questions that were most difficult to answer concerned a participants' rights, options and the impact of their choices. Verbal and memory ability both influenced ability to consent. CONCLUSIONS: This study introduces a measure that may enable clinicians to make more systematic assessments of people's capacity to consent. A number of issues surrounding the complex area of consent to treatment are also raised.


Subject(s)
Informed Consent/legislation & jurisprudence , Learning Disabilities/psychology , Mental Competency/legislation & jurisprudence , Adult , Female , Humans , Male , Middle Aged , Neuropsychological Tests , United Kingdom
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