“…In this review, we included 76 cohort studies, of which 64 were prospective 2, 4, 6, 7, 20, 22, 24– 27, 29, 31, 32, 34– 38, 40– 45, 48, 50– 54, 56, 58, 60, 63, 65, 66, 68– 70, 72, 73, 77, 80, 81, 83, 85, 88, 90, 92, 94, 97, 98, 101– 104, 107, 108, 110, 112, 115, 117, 118 and 13 were retrospective 9, 18, 23, 39, 46, 47, 61, 71, 74, 86, 87, 100, 105 . Bias was assessed using The Newcastle-Ottawa-Scale 14 .…”