Using 6-CIT, P300 encephalography, and pro-inflammation assessments for screening age-related cognitive decline and exploring associated risk factors in Egyptian elderly

Table 5 Comparing means between participants with normal, mild and significant cognitive decline regarding the individual items of the 6-CIT

6-CIT items	Normal	Mild	Significant
Q1. What year is it?	0.0 ± 0.0	0.3 ± 1.0	0.0 ± 0.0
Q2. What month is it?	0.0 ± 0.0	0.0 ± 0.0	0.2 ± 0.8
Q3. Repeating a memory phrase	0.5 ± 1.2^a	1.6 ± 3.3	2.2 ± 3.5^a
Q4. What time is it?	0.0 ± 0.0^a	0.0 ± 0.0^b	0.9 ± 1.5^{a b}
Q5.Count back from 20 till 1	0.6 ± 1.1^a	1.3 ± 1.4^b	2.6 ± 1.7^{a b}
Q6. Saying months in reverse from December till January	3.0 ± 1.9^a	4.8 ± 3.0	5.3 ± 2.3^a
Total Score	4.2 ± 1.9	8.0 ± 0.0	11.2 ± 1.3

6-CIT: 6-Item Cognitive Impairment Test
^aSignificant difference between normal and significant cognitive decline groups at p < 0.05
^bSignificant difference between mild and significant cognitive decline groups at p < 0.05