Table 2. Prevalence of ultrasound findings among affected and unaffected men in the CGB familial testicular cancer study.

Condition	Prevalence (95% CI) in unaffecteds	Prevalence (95% CI) in affecteds	P-value
Varicocele	5/33 (15%)	10/48 (21%)	0.57
	(5–32)	(10–35)
Hydrocele	4/33 (12%)	6/48 (13%)	1.00
	(3–28)	(5–25)
Epididymal cyst	20/33 (61%)	19/48 (40%)	0.06
	(42–77)	(26–55)
Microcalcifications	8/33 (24%)	23/48 (48%)	0.04
	(11–42)	(33–63)

Bold values indicate statistically significant findings.

^*P-value for comparison of the degree of TM among affected vs unaffected study participants.