borderline significanceP = .07
However, if we adjust for age, Charlson score and duration of follow-up in the pre-dialysis setting (covariates chosen for being susceptible to impact on access to transplantation, on survival and correlated to the ethnic origin), the sub-hazard ratio estimates are modified and we do not identify any more a statistically significant association between origin ethnic and access to transplantation (borderline significance, P = .07).