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Centre for Policy on Ageing | |
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| A comparison of four tests of cognition as predictors of inability to perform spirometry in old age | | Author(s) | Stephen C Allen, Mark Baxter |
| Journal title | Age and Ageing, vol 38, no 5, September 2009 |
| Pages | pp 537-541 |
| Source | http://www.ageing.oxfordjournals.org |
| Keywords | Assessment procedures for mental patients ; Comparison. |
| Annotation | Previous studies have shown that a Mini Mental State Examination (MMSE) score of <24/30 and inability to copy intersecting pentagons (IP) predicts inability to perform spirometry. The authors hypothesised that clock drawing tests (CLOX 1 and 2) being validated tests of cognitive executive function, might predict spirometry performance with a higher sensitivity and specificity than MMSE or IP. 113 spirometry-naive inpatients (84 females; mean age 84 years, range 74-97) were studied. All performed the MMSE, IP, CLOX 1 and 2, and then attempted to perform assisted spirometry to the American Thoracic Society / European Respiratory Society standard. Of the 113, 49 met the criteria for adequate spirometry. Using normative thresholds for probable impairment, inability to perform spirometry was predicted by MMSE <24/30 with a sensitivity of 81% and specificity of 90%; by inability to copy IP with a sensitivity of 92% and specificity of 100%; by CLOX1 <10/15 with a sensitivity of 81% and specificity of 49%; and by CLOX2 with a sensitivity of 63% and specificity of 65%. CLOX tests did not perform better than MMSE and IP to identify subjects unable to perform spirometry. Achieving assisted spirometry from the naive state in old age might be more determined by global cognitive function and ideo-motor praxis than by executive control function. (RH). |
| Accession Number | CPA-091207206 A |
| Classmark | DA:4C: 48 |
Data © Centre for Policy on Ageing |
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| ...from the Ageinfo database published by Centre for Policy on Ageing. |
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