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. 2009 Oct 23;339:b4018. doi: 10.1136/bmj.b4018

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This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/2.0/ and http://creativecommons.org/licenses/by-nc/2.0/legalcode.

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graphic file with name heig665869.f4_default.jpg — Fig 4 Adjusted hazard ratio for haemoglobin concentration (reference level 125 g/l). Results obtained by multivariable Cox regression with restricted cubic splines with five knots for haemoglobin concentration, adjusted for dialysis status, cerebrovascular disease, peripheral vascular disease, coronary heart disease, heart failure, cholesterol concentration, immunosuppressive regimen, diabetes status, age at transplantation, and cold ischaemia time