Table 1

Summary of clinical data for some patrilineal members in the Chinese pedigree

Subject	Sex	Age of test (years)	Age of onset (years)	Pure tone audiometry (dB hearing loss), right	Pure tone audiometry (dB hearing loss), left	Hearing impairment
V-1	Male	71	7	85	80	severe
V-5	Male	55	22	75	67	moderate
V-7	Male	63	12	78	78	severe
V-19	Male	54	8	70	63	moderate
V-21	Male	45	27	90	85	severe
V-30	Male	51	20	56	60	moderate
V-32	Male	48	8	78	77	severe
V-34	Male	42	9	79	74	severe
VI-3	Male	24	7	84	73	severe
VI-8	Male	32	7	76	75	severe
VI-10	Male	35	20	73	80	severe
VI-26	Male	23	18	76	78	severe
VI-27	Male	22	8	64	60	moderate
VI-28	Male	13	13	35	28	mild
VI-34	Male	26	8	58	64	moderate
VI-35	Male	22	18	65	60	moderate
VI-36	Male	11	9	80	79	severe
VII-5	Male	9	7	83	75	severe
VII-2	Male	<1	—	not applicable	not applicable	normal
VII-3	Male	2	—	not applicable	not applicable	normal
VII-6	Male	4	—	not applicable	not applicable	normal