Upon adjustment for gender , initial event , baseline age and BMI , the risk of developing a major cardiovascular event decreased significantly in successive quartiles of arachidonic acid ( P trend < @ ) , total omega @ polyunsaturated fatty acids ( P trend < @ ) , docosapentaenoic acid ( P trend < @ ) , docosahexaenoic acid ( P trend < @ ) , eicosapentaenoic acid + docosahexaenoic acid ( P trend < @ ) and eicosapentaenoic acid + docosapentaenoic acid + docosahexaenoic acid ( P trend < @ ) .