Results for 1-year overall mortality by type of anticoagulation treatment from a meta-analysis of patients with cancer without venous thromboembolism. Adapted from Kuderer NM, Khorana AA, Lyman GH, Francis CW. Cancer. 2007;110:1149-1160.19 Rate 1 indicates anticoagulation group and Rate 2 the control group. CRC, colorectal cancer; HN, head and neck cancer; LMWH, low-molecular-weight heparin; Mixed, mixture of solid tumors; NSCLC, non-small cell lung cancer; RR, relative risk; SCLC, small cell lung cancer; UFH, unfractionated heparin.