Table 3.

Subgroup analyses of omega-3 fatty acids consumption and the risk of VTE.

Subgroup	Number of studies	Pooled RR	95% CI	Heterogeneity
AllSample size	4	0.89	0.80–0.98	P = 0.47; I2 = 0%
<30,000	2	0.76	0.61–0.95	P = 0.70; I2 = 0%
>30,000	2	0.93	0.82–1.04	P = 0.79; I2 = 0%
Gender
Male	1	0.91	0.76–1.09	/
Female	1	0.94	0.80–1.10	/
Location
USA	3	0.91	0.81–1.02	P = 0.53; I2 = 0%
Other	1	0.78	0.61–1.00	/
Adjustment of cigarette smoking
Adjusted	2	0.93	0.82–1.04	P = 0.79; I2 = 0%
Unadjusted	2	0.76	0.61–0.95	P = 0.70; I2 = 0%
Adjustment of physical activity
Adjusted	2	0.93	0.82–1.04	P = 0.79; I2 = 0%
Unadjusted	2	0.76	0.61–0.95	P = 0.70; I2 = 0%
Adjustment of hypertension
Adjusted	2	0.93	0.82–1.04	P = 0.79; I2 = 0%
Unadjusted	2	0.76	0.61–0.95	P = 0.70; I2 = 0%