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Updated: Jul 23, 2026
A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
[Spanish version of the 7 Minute screening neurocognitive battery. Normative data of an elderly population sample
T del Ser Quijano1, F Sánchez Sánchez, M J García de Yébenes
1Sección de Neurología, Hospital Severo Ochoa, Leganés, Madrid. tdeserq@meditex.es
Introduction:
To standardize the Spanish version of the 7 Minute screening neurocognitive battery (7MS) in a population sample of elderly over 70 years.
Methods:
We examined 416 persons, living at home, participating in elderly the longitudinal study "Aging in Leganes", aged 71 to 99 years old (mean age: 79 +- 9.2 years; 51.7 % women; 10.6 illiterate, 25 % without formal education). In order to do so, we used an extensive clinical survey, general and neurological exam and extensive neuropsychological battery with several cognitive scales, attention, language, memory, visuomotor skill and reasoning tests, Jorm's IQCODE questionnaire, CES-D depression questionnaire and the 7MS including the Benton Orientation Test, Clock Drawing Test, Free and Cued Learning Test and Categorial Verbal Fluency. Dementia was diagnosed according to DSM-IV criteria but independently of the 7MS scores. Several methods to obtain the total score of the 7MS were analyzed and the normative parameters of the test were obtained in the subgroup of non-demented subjects.
Results:
The easiest and most efficient method to obtain the total score of the 7MS was the sum of the z-scores of the four subtests. We present the mean values, -1 and -1.5 standard deviations, range and percentiles of the partial and total scores of the 7MS stratified by age (71-75, 76-80, 81-85 and > or = 86 years) and education (less than primary education and primary education or greater) in the subgroup of non-demented subjects.
Conclusions:
The normative data of the 7MS obtained in a representative sample of the general elderly population support its rigorous use in the Spanish clinical setting.
