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Codes and Frequencies



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

00NIUXX
01Pregnant mother's German measlesXX
02At birth, for genetic reasonsXX
03At birth, other reason, not inf. diseaseXX
04Infectious disease like meningitisXX
05Brain tumorX·
06Ear infection(s)XX
07Ear diseaseX·
08Ear injuryXX
09Ear surgeryXX
10Loud brief noise: gunfire, explosionXX
11Other noise: machine, aircraft, etc.XX
12Getting olderXX
13Some other causeXX
97Unknown-refusedXX
98Unknown-not ascertainedX·
99Unknown-don't knowXX