The Living Kidney Donor Safety Study

Inclusion Criteria: * Be able to speak and read English and/or French, and * Be able to provide informed consent, and AND Subjects must either: * Be approved by the LHSC team (or applicable medical team at the participating sites) as eligible to donate their kidney and donated a kidney, OR * Meet study eligibility for controls (non-donors) as follows: Be between the ages of 18 and 70 years Meet blood pressure criteria as follows: * Blood pressure \<140 mmHg systolic and \<90 mmHg diastolic based on an average of at least 3 blood pressure measurements taken during the recruitment interview, or an average blood pressure \< 140 mmHg systolic and \< 90 mmHg diastolic based on a minimum of 12 readings taken at home. * All participants need to successfully record at least 12 home blood pressure readings using the self-monitoring device to be eligible Meet local lab criteria as follows: * Documented pre-donation serum creatinine \<115 µmol/L in men or \<90 µmol/L in women, or Cockcroft-Gault estimated glomerular filtration rate \>80 mL/min * Urine dipstick test for protein is negative or if trace or 0.3 g/L, a random urine albumin to creatinine ratio \<8 mg/mmol (70 mg/g) * Urine dipstick test for hematuria is negative. Those with non-persistent hematuria are eligible to participate. Those with initial evidence of dipstick hematuria may have a second assessment. Test should not occur during menses. Test should be repeated if there is evidence of urinary tract infection on…