Effects of egg yolk choline intake on cognitive functions and plasma choline levels in healthy middle-aged and older Japanese: a randomized double-blinded placebo-controlled parallel-group study

Table 5 Effects of egg yolk choline on ⊿TMT test scores in subjects

		group	n	⊿ 6 weeks				⊿ 12 weeks
		group	n	Mean	±	SE	P-value	Mean	±	SE	P-value
TMT-A	Time (sec)	Placebo	21	− 5.24	±	1.48	0.183	− 4.67	±	1.68	0.415
	Time (sec)	Choline	20	− 2.20	±	1.7	0.183	− 6.80	±	1.99	0.415
	Error	Placebo	21	− 0.14	±	0.1	0.106	− 0.10	±	0.1	0.681
	Error	Choline	20	0.05	±	0.05	0.106	− 0.05	±	0.05	0.681
TMT-B	Time (sec)	Placebo	21	− 15.67	±	6.63	0.070	− 18.62	±	6.64	0.134
	Time (sec)	Choline	20	− 0.60	±	4.49	0.070	− 6.95	±	3.55	0.134
	Error	Placebo	21	− 0.19	±	0.23	0.474	− 0.05	±	0.28	0.871
	Error	Choline	20	0.05	±	0.25	0.474	− 0.10	±	0.14	0.871

Mean ± SE of 20 or 21 subjects. The P-values are from the Student’s t-test, comparing values between the placebo and choline groups

ISSN: 1476-511X