Giles M, O'Brien P
Department of Otolaryngology, Head and Neck Surgery, Waikato Base Hospital, Hamilton, New Zealand.
Clin Otolaryngol Allied Sci. 1991 Apr;16(2):174-8. doi: 10.1111/j.1365-2273.1991.tb01971.x.
A survey of hearing amongst a population of Maori schoolchildren in the eastern North Island of New Zealand has demonstrated a high prevalence of hearing impairment. Out of 194 children undergoing audiometry an impairment of 20 dB or greater at 0.5, 1.2 and 4 kHz was found in the worse hearing ear in 29% and in the better hearing ear in 12%. Comparison with a similar survey done in the same valley in 1977 revealed an apparent reduction in the prevalence of hearing loss and the prevalence of otitis media. This improvement appears to be due to a reduced prevalence of otitis media. An unexpected finding was that at least 2% of the children had a bilateral sensorineural hearing impairment.
对新西兰北岛东部一群毛利学童进行的听力调查显示，听力障碍患病率很高。在接受听力测定的194名儿童中，听力较差的耳朵在0.5、1.2和4千赫时出现20分贝或更高的听力损伤的比例为29%，听力较好的耳朵为12%。与1977年在同一山谷进行的类似调查相比，听力损失和中耳炎的患病率明显降低。这种改善似乎是由于中耳炎患病率降低。一个意外发现是，至少2%的儿童患有双侧感音神经性听力障碍。
