. 2013 Jun 27;8(6):e67346. doi: 10.1371/journal.pone.0067346

Table 1. Baseline characteristics of the MCI samples used in this study.

	Whole sample (n = 195)				CSF subsample (n = 99)				F statistic (group x subsample)
	pMCI_early	pMCI_late	sMCI	F statistic (group)	pMCI^CSF_ early	pMCI^CSF_late	sMCI^CSF	F statistic (group)
No. subjects	58	75	62	–	32	34	33	–	–
Males/Females	33/25	48/27	49/13	–	18/14	13/11	27/6	–	–
Age range	55–86	56–88	58–88	–	55–86	58–88	63–88	–	–
Age mean	73.9	75.2	76.4	1.85	73.4	76.3	76.3	1.88	0.83
(SD)	(7.0)	(7.3)	(6.2)	[p = 0.16]	(7.0)	(7.7)	(5.8)	[p = 0.16]	[p = 0.44]
Education years mean	15.4	16.0	16.5	2.24	15.2	15.7	16.6	1.84	0.29
(SD)	(2.9)	(2.9)	(2.6)	[p = 0.11]	(3.1)	(3.0)	(2.4)	[p = 0.16]	[p = 0.75]
MMSE mean	26.5	26.8	27.7	8.67	26.4	26.6	27.4	2.58	0.46
(SD)	(1.9)	(1.6)	(1.8)	[p<0.001]	(2.0)	(1.6)	(1.8)	[p = 0.08]	[p = 0.63]
CDR-SB mean	2.0	1.8	1.3	8.97	2.0	1.7	1.3	4.23	0.07
(SD)	(0.9)	(1.0)	(0.7)	[p<0.001]	(0.9)	(1.1)	(0.6)	[p<0.05]	[p = 0.93]
ADAS mean	23.5	20.4	16.3	26.60	22.9	20.3	16.5	10.72	0.45
(SD)	(6.3)	(4.3)	(5.8)	[p<0.001]	(5.7)	(4.4)	(6.3)	[p<0.001]	[p = 0.63]
Left hippocampus volume mean	2908.7	2923.4	3260.6	9.75	2821.4	2906.9	3273.1	8.09	0.76
(SD)	(473.1)	(550.9)	(478.7)	[p<0.001]	(482.0)	(516.3)	(446.9)	[p<0.001]	[p = 0.47]
Right hippocampus volume mean	2950.4	2963.4	3275.6	8.07	2873.5	2877.8	3255.2	7.07	0.29
(SD)	(506.1)	(550.7)	(476.0)	[p<0.001]	(446.8)	(528.9)	(435.8)	[p<0.01]	[p = 0.75]
T-Tau mean	–	–	–	–	113.8	116.8	99.2	1.11	–
(SD)					(54.6)	(46.6)	(54.1)	[p = 0.33]
P-Tau mean	–	–	–	–	44.7	39.2	34.9	2.77	–
(SD)					(17.1)	(15.6)	(18.0)	[p = 0.07]
Aβ₄₂ mean	–	–	–	–	142.5	147.3	168.5	2.77	–
(SD)					(35.7)	(38.2)	(63.9)	[p = 0.07]

Bold type = significant test results.