Amount

Results

Conclusion*

Frequency of fish consumption:

Never, <1 time/month, 1 time/month, 2-3 times/month, 1 time/week, 2-4 times/week, 5-6 times/week, 1 time/day, 2-3 times/day, 4-5 times/day, 6-7 times/day, ≥8 times/day

Quintiles of n-3 PUFA from fish (g/day):

Quintile 1 = 0.16±0.08

Quintile 2 = 0.36±0.06

Quintile 3 = 0.52±0.07

Quintile 4 = 0.74±0.10

Quintile 5 = 1.29±0.47

After adjusting for age, sex, height, BMI, smoking, consumption of alcohol, total energy intake, systolic blood pressure, treatment for hypertension, total serum cholesterol, and level of education:

Those in Quintile 5 of n-3 PUFA from fish had a significantly higher hazard rate ratio of atrial fibrillation or flutter, when compared to those in Quintile 1 (HRR=1.34, 95% CI 1.02-1.76); and

The association between n-3 PUFA from fish and risk of atrial fibrillation or flutter was not significant for any other quintiles when compared to Quintile 1, however there was a positive trend (p=0.006).

N

3 groups of DHA content in platelets:

1 = <2.26%

2 = 2.26-3.14%

3 = >3.14%

Fish intake:

1 = 0 times/week

2 = 1 time/week

3 = ≥2 times/week

The standard deviation of all normal RR intervals in the entire 24-hour recording was higher in those who ate fish at least 1 time/week (122 ms for those who ate fish 1 time/week and 119 ms for those who ate fish ≥2 times/week), compared to those who ate fish 0 times per week (103 ms), but these differences were not significant.

The standard deviations of all normal RR intervals in the entire 24-hour recording for those in the first, second, and third tertile of DHA contents in platelets were approximately 98 ms, 116 ms, and 140 ms, respectively.

A



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