tokens: However , there was no association between aPL positivity and mean levels of C reactive protein ( mean difference was 32 ( 95 % CI -15 to 79 ) , p=0.18 ) , D - dimer ( mean difference was 34 ( 95 % CI -194 to 273 ) , p=0.77 ) , mortality ( 1.46 ( 95 % CI 0.29 to 7.29 ) , p=0.65 ) , invasive ventilation ( 1.22 ( 95 % CI 0.51 to 2.91 ) , p=0.65 ) and venous thromboembolism ( 1.38 ( 95 % CI 0.57 to 3.37 ) , p=0.48 ) .