Table 3.

Analyses of covariance examining the association between tea consumption and cognitive function

	Adjusted model			Fully adjusted model
	F	ηp 2	P value	F	ηp 2	P value
Total sample
MoCA	0.27	0.000	0.601	0.45	0.000	0.501
HVLT total	10.65	0.006	0.001*	11.52	0.007	0.001*
HVLT delay	4.36	0.002	0.037*	4.45	0.003	0.035*
DST forward	3.26	0.002	0.071	4.65	0.003	0.031*
DST backward	0.71	0.000	0.398	0.16	0.000	0.693
CH
MoCA	0.11	0.000	0.744	0.08	0.000	0.617
HVLT total	10.51	0.010	0.001*	10.32	0.012	0.001*
HVLT delay	6.39	0.006	0.012*	5.17	0.006	0.023*
DST forward	3.10	0.003	0.078	4.47	0.005	0.035*
DST backward	0.40	0.000	0.529	0.88	0.001	0.350
MCI
MoCA	0.18	0.000	0.669	0.31	0.000	0.577
HVLT total	0.95	0.001	0.330	1.07	0.001	0.302
HVLT delay	0.01	0.000	0.928	0.07	0.000	0.739
DST forward	0.21	0.000	0.648	0.04	0.000	0.840
DST backward	0.02	0.000	0.883	0.24	0.000	0.623

Adjusted model: adjusted for age, sex and education; fully adjusted model: additional adjustment for smoking and drinking history; heart disease also controlled for entire sample and healthy controls.

*p<0.05.

CH, cognitively healthy; DST, Digit Span Test; HVLT, Hopkins Vocabulary Learning Test; MCI, mild cognitive impairment; MoCA, Montreal Cognitive Assessment; η_p ², partial eta square estimate.