Table 1.

Baseline characteristics of participants with and without dementia at follow-up

	No dementia (n=11,678)	Dementia (n=602)	p-value
Age: 50–59	5,029 (43)	51 (8)	0.001
60–69	3,540 (30)	154 (26)
70–79	2,281 (20)	246 (41)
≥80	828 (7)	151 (25)
Sex: Men	5,375 (46)	251 (42)	0.037
Women	6,303 (54)	351 (58)
CR Index	100.8± 14.8	98.8 ± 14.5	0.001
CR Index: Low	3,612 (31)	235 (39)	0.001
Medium	3,933 (34)	192 (32)
High	4,133 (35)	175 (29)
Education: 4 years	4,323 (37)	321 (53)	0.001
8 years	1,395 (12)	84 (14)
12 years	2,848 (24)	105 (18)
15 years	3,112 (27)	92 (15)
Occupation: Never worked	138 (1)	17 (3)	0.001
Low skilled manual work	2,727 (23)	171 (28)
Skilled manual work	2,027 (17)	108 (18)
Skilled non-manual work	2,786 (24)	145 (24)
Professional occupation	3,283 (29)	140 (23)
Intellectual occupation	717 (6)	21 (4)
Leisure Activities: Low	3,502 (30)	217 (36)	0.001
Medium	3,958 (34)	210 (35)
High	4,218 (36)	175 (29)
Wealth: Q1 (Lowest)	2,072 (18)	156 (26)	0.001
Q2	2,301 (19)	130 (22)
Q3	2,332 (20)	124 (21)
Q4	2,399 (21)	98 (16)
Q5 (Highest)	2,574 (22)	94 (15)
Smoking: No	9,538 (82)	526 (87)	0.001
Yes	2,140 (18)	76 (13)
Marital status: Not Married	7,890 (68)	350 (58)	0.001
Married	3,788 (32)	252 (42)
Depressive Symptoms: No	9,810 (84)	449 (75)	0.001
Yes	1,868 (16)	153 (25)
CHD: No	10,756 (92)	487 (81)	0.001
Yes	922 (8)	115 (19)
Diabetes: No	11,048 (95)	546 (91)	0.001
Yes	630 (5)	56 (9)
Stroke No	11,322 (97)	554 (92)	0.001
Yes	356 (3)	48 (8)
Hypertension: No	8,246 (71)	346 (57)	0.001
Yes	3,432 (29)	256 (43)

N (%) and Means ± SD. CHD: Coronary Heart Disease, CR: Cognitive Reserve, Q: Quintile