Screening for mild cognitive impairment in elderly ambulatory patients with cognitive complaints

Giovanni Ravaglia, Paola Forti, Fabiola Maioli, Lucia Servadei, Mabel Martelli, Nicoletta Brunetti, Luciana Bastagli, Erminia Mariani

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Background and aims: Identification of patients with Mild Cognitive Impairment (MCI) is strongly recommended because of their increased risk of dementia. Two brief global cognitive instruments, the Mini Mental State Examination (MMSE) and the Clock Drawing Test (CDT), were examined as useful screening methods for MCI. Methods: The sensitivity and specificity of MMSE and CDT, scored using the Sunderland and Wolf-Klein methods, were evaluated in 113 elderly individuals with three different MCI subtypes: amnestic, multiple domain impairments, and single non-memory domain. Diagnoses were made on the basis of extensive clinical and neuropsychometric assessment. Results: Used alone, MMSE and CDT at standard cut-offs were highly specific (about 0.80) but rather insensitive (less than 0.50) to all MCI subtypes. By contrast, when used in combination, an abnormal result on either MMSE or CDT scored by the Sunderland method had a specificity of 0.69 [0.57-0.81] and a sensitivity of 0.75 [0.64-0.87] for multiple domain impairments MCI. Results were similar for MMSE in combination with CDT scored by the Wolf-Klein method (specificity 0.71 [0.59-0.83]; sensitivity 0.68 [0.56-0.80]). Conclusions: MMSE and CDT alone are not valid screening methods for MCI detection. In combination, they reach fair sensitivity and specificity for the multiple domain impairment MCI subtype. However, some theoretical concerns relating to this subtype, together with the uncertainty that still lingers about its prognostic value, caution against routine use of MMSE and CDT as MCI screening instruments.

Original languageEnglish
Pages (from-to)374-379
Number of pages6
JournalAging clinical and experimental research
Volume17
Issue number5
Publication statusPublished - Oct 2005

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Sensitivity and Specificity
Cognitive Dysfunction
Uncertainty
Dementia

Keywords

  • Clock Drawing Test
  • Cognitive complaints
  • Elderly
  • Mild cognitive impairment
  • Mini Mental State Examination
  • Screening instruments

ASJC Scopus subject areas

  • Ageing

Cite this

Ravaglia, G., Forti, P., Maioli, F., Servadei, L., Martelli, M., Brunetti, N., ... Mariani, E. (2005). Screening for mild cognitive impairment in elderly ambulatory patients with cognitive complaints. Aging clinical and experimental research, 17(5), 374-379.

Screening for mild cognitive impairment in elderly ambulatory patients with cognitive complaints. / Ravaglia, Giovanni; Forti, Paola; Maioli, Fabiola; Servadei, Lucia; Martelli, Mabel; Brunetti, Nicoletta; Bastagli, Luciana; Mariani, Erminia.

In: Aging clinical and experimental research, Vol. 17, No. 5, 10.2005, p. 374-379.

Research output: Contribution to journalArticle

Ravaglia, G, Forti, P, Maioli, F, Servadei, L, Martelli, M, Brunetti, N, Bastagli, L & Mariani, E 2005, 'Screening for mild cognitive impairment in elderly ambulatory patients with cognitive complaints', Aging clinical and experimental research, vol. 17, no. 5, pp. 374-379.
Ravaglia G, Forti P, Maioli F, Servadei L, Martelli M, Brunetti N et al. Screening for mild cognitive impairment in elderly ambulatory patients with cognitive complaints. Aging clinical and experimental research. 2005 Oct;17(5):374-379.
Ravaglia, Giovanni ; Forti, Paola ; Maioli, Fabiola ; Servadei, Lucia ; Martelli, Mabel ; Brunetti, Nicoletta ; Bastagli, Luciana ; Mariani, Erminia. / Screening for mild cognitive impairment in elderly ambulatory patients with cognitive complaints. In: Aging clinical and experimental research. 2005 ; Vol. 17, No. 5. pp. 374-379.
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