Table 2 Long Chain N-3 Polyunsaturated Fatty Acids Intake and Stroke Risk.

Outcome	Studies (N)	Events	Participants	RR	95% CI		P value	I²for heterogeneity
Total Stroke	14	9065	514483	0.87	0.80	0.95	0.002*	15.1
Fatal stroke risk	6	4228	285642	0.84	0.73	0.97	0.018*	31.3
BMI
<24	6	4326	287734	0.86	0.75	0.98	0.019*	17.3
≥24	4	2629	61380	0.83	0.68	1.02	0.075	40.2
Follow years
≤14 years	9	5822	353464	0.87	0.78	0.98	0.026*	24.8
>14 years	5	3243	161019	0.87	0.76	0.99	0.03*	5.4
Race
Non East-Asians	8	4739	226749	0.86	0.75	0.97	0.049*	21.9
East-Asians	6	4326	287734	0.86	0.75	0.98	0.019*	17.3
Sex
Female	6	NA	176751	0.81	0.71	0.92	0.002*	12.8
Male	7	NA	131085	0.96	0.84	1.11	0.601	0
Stroke type
Ischemic	9	4149	416334	0.87	0.76	0.99	0.029*	16.7
Hemorrhagic	8	1551	379250	0.82	0.68	0.99	0.044*	0
Max variates adjusted	13	8201	380187	0.89	0.82	0.96	0.003*	0
Quality
Score ≤8	7	2855	266805	0.79	0.66	0.94	0.01*	35.7
Score >8	7	6210	247678	0.9	0.82	0.98	0.021*	15.1

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