Skip to main content

Table 8 Top selected features using the ensemble approach with ADNI data (RPT threshold with β set as 10). Ranking positions of each feature are reported within brackets for the 2,3, and 4 years time windows, respectively

From: Neuropsychological predictors of conversion from mild cognitive impairment to Alzheimer’s disease: a feature selection ensemble combining stability and predictability

Common features across all time windows

 Trail Making Test (Part B) - time (1,1,1)

AVDELTOT: AVLT Recognition (14,15,20)

 Forgetting Index (2,2,2)

Boston Test Naming (15,12,11)

 AVTOT15: RAVLT 15 (3,3,4)

ADAS-Cog Q4: Delayed word recall (16,17,16)

 ADAS-Cog Total 13 (4,4,5)

ADAS-Cog Q8: Word recognition (17,16,15)

 Trail Making Test (Part A) - time (5,5,3)

MMSE (total) (18,20,17)

 ADAS-Cog Total 11 (6,7,8)

ADAS-Cog Q1: Word recall (19,21,19)

 AVTOT6: RAVLT 6 (7,6,7)

Letter Fluency (20,22,21)

 Logical Memory Immediate (8,8,9)

Age (21,18,18)

 Category Fluency (9,10,6)

Years of symptoms (22,19,22)

 AVDEL30: RAVLT delay (10,9,10)

CDR: Orientation (25,26,26)

 FAQ: Activities of Daily Living (11,13,13)

CDR: Home (26,23,23)

 Logical Memory Delayed (12,11,12)

AVTOTB: AVLT Interference (27,25,25)

 MOCADMDL (13,14,15)

 

Common features across one or two time windows

 ADAS-Cog Q7: Orientation (23,24,-)

MMORIENTOT (29,-,-)

 GDS (24,27,-)

ADAS-Cog Q13: Number cancelation (−,29,-)

 Years of formal education (28,-,27)

CDR: Judgment and problem solving (−,-,29)

 MMDLRECALL (−,28,24)

CDR: Community Affair (−,-,30)