text: Secondary<unk>  is only responsible for 5% of cases of chronic<unk>  whereas primary<unk>  (also known as essential<unk>  where no identifiable cause is identified) is responsible for 95% of cases. Common causes of secondary<unk>  include obstructive sleep apnea, hyperaldosteronism, kidney diseases, excess catecholamines, coarctation of the arota, cushing syndrome among other diseases.
option_0: Chronic hypertension causes
option_1: Diabetic nephropathy causes
option_2: Diabetes mellitus type 2 causes
option_3: Hypercholesterolemia causes
option_4: Metabolic syndrome causes
option_5: High cholesterol causes
option_6: Chronic renal failure causes
option_7: Atherosclerosis causes