Table 2. Numbers of participants at each visit.

	NC		MCI		AD
Follow-up visits	Non-aspirin users	Aspirin users	Non-aspirin users	Aspirin users	Non-aspirin users	Aspirin users
Baseline	310	199	586	399	231	141
1 y	246	160	510	362	176	112
2 y	230	149	407	283	106	65
3 y	139	78	348	228	5	5
4 y	137	98	238	168	1	1
5 y	86	48	157	105	1	1
6 y	109	79	128	88	0	2
7 y	85	54	97	78	/	/
8 y	68	46	69	49	/	/
9 y	43	16	33	26	/	/
10 y	29	17	17	11	/	/
11 y	26	12	8	9	/	/
12 y	20	8	7	7	/	/
13 y	22	9	3	2	/	/
14 y	5	3	1	0	/	/

Abbreviations: CN: normal cognition; MCI: mild cognitive impairment; AD: Alzheimer’s disease.