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. 2018 Jun 29;8:9871. doi: 10.1038/s41598-018-27960-7

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Survival curve using Kaplan Meier estimate for the three risk groups of the DQI score in the derivation (solid lines) and validation (doted lines) datasets. Predicted survival curves in the derivation and validation dataset using the PI and the baseline survival in the derivation dataset with the estimated survival using Kaplan Meier curves in the validation dataset. Graft survival at month 3, year 1 and 3, estimated using Kaplan Meier and hazard ratios through DQI risk groups for validation data.