Table 3:

Comparisons of baseline cognitive performance for each cluster by independent t-tests.

Cognitive measures	Cluster 1 Lower CP (n=21)	Cluster 2 Higher CP (n=29)
	Mean [95% CI]	Mean [95% CI]	p-value
Raven’s SPM total score	25.8 [22.2, 29.4]	38.8 [36.2, 41.4]	p < 0.001
ROCF total recall score	16.5 [13.4, 19.6]	32.7 [29.6, 35.7]	p < 0.001
Digit Span Forward	5.1 [4.4, 5.9]	6.0 [5.6, 6.6]	p = 0.036
Digit Span Backward	3.7 [3.2, 4.2]	4.4 [3.9, 4.9]	p = 0.059
Total DST (F+B)	8.9 [8.0, 9.7]	10.5 [9.6, 11.3]	p = 0.011
TMT ratio (B/A)	2.2 [1.9, 2.6]	1.7 [1.5, 1.9]	p = 0.008
SDST total errors	2.1 [1.2, 3.0]	2.0 [1.2, 2.7]	p = 0.808