Table 3.

Equivocal and discordant findings in study participants^a

Disease Subtype	Age (yr)b	Molecular Diagnosis	Renal Cyst Number
			Right Kidney	Left Kidney	Both Kidneys
PKD1	19	Affected	0	1	1
	24	Affected	0	0	0
	30	Affected	1	3	4
	32	Affected	0	1	1
	33	Affected	2	0	2
	35	Affected	2	1	3
	40	Affected	1	3	4
	46	Affected	>4	1	>5
	24	Unaffected	2	0	2
	28	Unaffected	0	1	1
	55	Unaffected	4	0	4
PKD2	16	Affected	0	0	0
	17	Affected	0	0	0
	17	Affected	0	0	0
	19	Affected	0	1	1
	19	Affected	0	1	1
	20	Affected	0	0	0
	20	Affected	0	0	0
	21	Affected	0	0	0
	23	Affected	0	0	0
	24	Affected	0	1	1
	27	Affected	0	0	0
	30	Affected	2	1	3
	30	Affected	1	3	4
	31	Affected	0	0	0
	31	Affected	0	4	4
	31	Affected	1	3	4
	32	Affected	1	3	4
	32	Affected	4	0	4
	33	Affected	>5	1	>6
	35	Affected	1	3	4
	36	Affected	1	0	1
	36	Affected	1	3	4
	36	Affected	1	>5	>6
	37	Affected	0	1	1
	42	Affected	1	>5	>6
	47	Affected	>5	1	>6
	53	Affected	1	1	2
	55	Affected	>5	1	>6
	59	Affected	2	0	2
	21	Unaffected	0	1	1
	24	Unaffected	0	1	1
	49	Unaffected	3	1	4

^aUsing the following PKD1 diagnostic criteria: Two or more renal cysts (unilateral or bilateral) and two or more cysts in each kidney for diagnosis of at-risk individuals aged 15 to 29 yr and 30 to 59 yr, respectively. Four or more cysts in each kidney for diagnosis of at-risk individuals aged ≥60 yr. Fewer than two cysts in each kidney for disease exclusion in at-risk individuals aged ≥30 yr.

^bAge at ultrasound scan.