Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Consequently, the findings of our study suggest that increased PWV noted in new onset diabetes after kidney transplantation [48,49] may already, at least in part, be present before the transplantation and a result of pre-diabetes or insulin resistance in the uraemic patients awaiting a kidney transplant.
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