Table 4.

Presentation of symptoms of patients with BBS associated with kidney and urinary tract.

Title 1	P1	P2	P3	P4	P5	P6	P7	P8
Age of onset of kidney function impairment	3 years	2 years 8 months	2 months	10 years	1 year 4 months	1 year 3 months	11 months	3 months
CKD	Stage I	Stage II/III	Stage V	Stage I	Stage II	Stage V	Stage III	Stage IV
Prenatal ultrasound examination		dilated pelvicalyceal system	renal cysts		abnormal kidney structure with bilateral hydronephrosis	abnormal structure of the kidneys, bilateral hydronephrosis	dysplasia of both kidneys	fetal polycystic kidneys suspected
Kidney malformation (ultrasound examination) on diagnosis	horseshoe kidney, periodic albuminuria	loss of cortico-medullary differentiation	dilatation of the pelvicalyceal system, (both kidneys), lack of corticomedullary differentiation, cyst in the right kidney	dilatation of the pelvicalyceal system (both kidneys), albuminuria	abnormal structure of both kidneys and dilatation of the pelvicalyceal system	left renal hypoplasia, loss of corticomedullary differentiation	Loss of corticomedullary differentiation, crossed renal ectopia	cysts in both kidneys
Others	hypertension		require regular dialysis, waiting for kidney transplantation			require regular dialysis, waiting for kidney transplantation		hypertension

CKD, chronic kidney disease.