Hereditary CKD?

I just found out my dad is at stage 3 of chronic kidney disease (CKD). He was showing me his blood test results from the non-stroke visit and his creatinine number was 1.43. The normal range is from 0.7 to 1.3 so it’s a bit high.That translates to a non-African American eGFR of 45. For comparison, my last labs has a creatinine of 9.63 and eGFR of 6. That is with dialysis.

I told him to call his primary doctor to get a referral for a nephrologist. When I found out about my CKD, it was probably in 2014 and my eGFR was ~50. Three years later, it had deteriorated enough that I needed dialysis and a transplant.

When I go to the hospital or see a new doctor, they ask if there is family history of kidney disease. I always answer no since no one I know has kidney disease. Now I’m wondering how much of my kidney failure is hereditary and how much is from bad living.