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Table 1 Distribution of hearing impaired and normal hearing members in the assortative mating families

From: Role of DFNB1 mutations in hereditary hearing loss among assortative mating hearing impaired families from South India

Type of Mating

No. of hearing impaired mates

No. of hearing partners

Other hearing impaired members in the family

Other hearing members in the family

Total

Deaf marrying deaf (DXD)

120

0

63

154

337

Deaf marrying normal hearing (DXN)

46

46

50

142

284

TOTAL

166

46

113

296

621