Age: as one grows older the risk increases

Proteins in the urine

Blood in the urine

Elevated serum creatinine (or increase in serum creatinine with time)

Hypertension: as much as 1 in 5 to 10 adults with hypertension can have CKD

Diabetes mellitus (DM): as much as 1 in 3 to 4 adults with DM can have CKD

Ischemic heart disease (heart attack or angina) (history of)

Cerebrovascular accident (stroke) (history of)

Obesity (especially morbid obesity)

Immune mediated or rheumatological conditions like lupus (SLE), rheumatoid arthritis, etc

Recurrent or multiple kidney stones

Long term medications (eg pain-killers)

Family history of CKD