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. 2002 Oct 26;325(7370):932–933. doi: 10.1136/bmj.325.7370.932

Table.

Incidence of dementia according to fish and meat consumption in elderly people in southwestern France

Total No
Dementia
Alzheimer's disease
No of cases
Incidence (95% CI) per 100 person years
No of cases
Incidence (95% CI) per 100 person years
Fish or seafood consumption:
 Once a day  19  1 1.00 (0.00 to 2.97)  1 1.00 (0.00 to 2.97)
 At least once a week (but not every day) 1122 124 2.05 (1.69 to 2.41) 99 1.64 (1.31 to 1.96)
 From time to time (but not weekly) 240 35 2.90 (1.94 to 3.87) 27 2.24 (1.39 to 3.08)
 Never  35 10  6.61 (2.51 to 10.70)  8 5.29 (1.62 to 8.95)
Meat consumption:
 Once a day 934 110 2.22 (1.80 to 2.63) 87 1.75 (1.38 to 2.12)
 At least once a week (but not every day) 450 53 2.21 (1.61 to 2.80) 44 1.83 (1.29 to 2.37)
 From time to time (but not weekly)  26  4 3.49 (0.07 to 6.90)  2 1.74 (0.00 to 4.16)
 Never   6  3  9.39 (0.00 to 20.01)  2  6.26 (0.00 to 14.93)