In aggregate , PPARGC1A variation was strongly associated with baseline triacylglycerol concentrations ( p = 2.910 ( -30 ) ) , BMI ( p = 2.010 ( -5 ) ) and visceral adiposity ( p = 1.910 ( -4 ) ) , as well as with changes in triacylglycerol concentrations ( p = 1.710 ( -5 ) ) and BMI ( p = 9.910 ( -5 ) ) from baseline to 1 year .