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HEARLAGE
Age at hearing loss in left ear

Codes and Frequencies



An 'X' indicates the category is available for that sample

0NIUX
1At birthX
2Less than 3 years oldX
33+ but LT 19 years oldX
419+ but LT 45 years oldX
545+ but LT 65 years oldX
665+ years oldX
7Unknown-refusedX
8Unknown-not ascertained·
9Unknown-don't know·