[Spanish validation of the MacArthur Competence Assessment Tool for Treatment interview to assess patients competence to consent treatment].
OBJECTIVE
To validate the MacArthur Competence Assessment Tool for Treatment (MacCAT-T) Spanish version, which assesses the mental capacity of patients to consent treatment, by examining 4 areas (Understanding, Appreciation, Reasoning and Expressing a choice).


METHODS



METHODS
160 subjects (80 Internal Medicine inpatients, 40 Psychiatric inpatients and 40 healthy controls).


METHODS
MacCAT-T, Mini-Mental Status Examination (MMSE).


METHODS
Feasibility study, reliability and validity calculations (against to gold standard of clinical expert).


RESULTS
Mean duration of the MacCAT-T interview was 18min. Inter-rater reliability: Intraclass correlation coefficient for Understanding=0.98, Appreciation=0.97, Reasoning=0.98, Expressing a choice=0.91. Internal consistency (Cronbach's alpha): Understanding=0.87, for Appreciation=0.76, for Reasoning=0.86. Patients considered to be incapable (gold standard) scored lower in all the MacCAT-T areas. Poor performance on the MacCAT-T was related to cognitive impairment assessed by MMSE.


CONCLUSIONS
Spanish version of the MacCAT-T is feasible, reliable, and valid for assessing the capacity of patients to consent treatment.
Servicio de Psiquiatría, Hospital de Día Irubide, Servicio Navarro de Salud, Pamplona, Navarra, España.
Ignacio
I
Alvarez Marrodán
Subdirección de Calidad, Dirección General de Atención al Paciente, Servicio Madrileño de Salud, Madrid, España.
Beatriz
B
Baón Pérez
Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Ministerio de Economía y Competitividad, Madrid, España; Oficina Regional de Salud Mental, Consejería de Sanidad, Comunidad de Madrid, Madrid, España.
Mercedes
M
Navío Acosta
Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Ministerio de Economía y Competitividad, Madrid, España; Departamento de Psicología y Sociología, Universidad de Zaragoza, Zaragoza, España.
Raul
R
López-Antón
Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Ministerio de Economía y Competitividad, Madrid, España; Departamento de Medicina Preventiva y Salud, Universidad de Zaragoza, Zaragoza, España.
Elena
E
Lobo Escolar
Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Ministerio de Economía y Competitividad, Madrid, España; Servicio de Psiquiatría, Hospital Universitario Miguel Servet, Zaragoza, España; Departamento de Medicina y Psiquiatría, Universidad de Zaragoza, Zaragoza, España. Electronic address: tirsoven@unizar.es.
Tirso
T
Ventura Faci
D000368:Aged; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007258:Informed Consent; D007407:Interviews as Topic; D007802:Language; D008297:Male; D016743:Mental Competency; D008875:Middle Aged; D011446:Prospective Studies; D015203:Reproducibility of Results
Bioethics; Bioética; Capacidad de decisión; Consentimiento informado; Decisional capacity; Estudio de validación; Informed consent; MacArthur Competence Assessment Tool for Treatment; Validation study