Table 2. The levels of chemokines in cerebrospinal fluid (CSF) and plasma obtained at baseline.

CSF	Controls n = 30	Stable MCI n = 52	MCI-AD n = 47	MCI-other n = 20
CCL2	649±182	676±183	684±194	729±176
CCL11	11±4	12±4	12±5	12±5
CCL13	14±10	12±10	16±13	20±29
CCL26	14±19	33±55	33±48a	16±20

The chemokine levels are given in pg/ml. Only P-values<0.01 are considered significant, because of correction for multiple comparisons (all groups were compared to both controls and stable MCI).

^a P<0.01 vs Controls.

^b P<0.01 vs Stable MCI.

Abbreviations: Stable MCI, patients with MCI with stable cognitive functions during a follow-up period of 5.2 years; MCI-AD, patients with MCI who developed Alzheimer's disease during follow-up; MCI-other, patients with MCI who developed other types of dementia during follow-up; CSF, cerebrospinal fluid.