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. Author manuscript; available in PMC: 2016 Mar 1.
Published in final edited form as: Epidemiology. 2015 Mar;26(2):263–270. doi: 10.1097/EDE.0000000000000230

Table 2.

Persons from complete monozygotic Swedish twin pairs discordant for dementia allocated to quartiles of dementia odds, according to area of residence and sex. The groups with and without dementia will be, by definition, identically matched by age, sex, and genotype

Dementia odds ratio
Dementia Q1 (low) Q2 Q3 Q4 (high)
No. (%) No. (%) No. (%) No. (%)
Men No 19 (76.0) 16 (66.7) 14 (41.2) 18 (35.3)
Yes 6 (24.0) 8 (33.3) 20 (58.8) 33 (64.7)
Women No 35 (74.5) 19 (61.3) 18 (31.0) 28 (43.8)
Yes 12 (25.5) 12 (38.7) 40 (69.0) 36 (56.3)