The need for the NORL Registry is relevant in the Ministry of Health (MOH) as
aevidence-based data was needed to plan policies and programs for
Otorhinolaryngological, Audiological and speech rehabilitation services of the
country. According to the World Health Organization (WHO), Ear and Hearing
Disorder Survey Protocol; WHO/PBD/PDH/99.8(1), epidemiological data concerning
Otorhinolaryngological disease in particular hearing impairment and deafness is
sparse and fragmentary world-wide and is especially so in developing countries.
An estimated figure of moderate-profound hearing loss is 42 million persons over
the age of three years. Sensorineural hearing loss has been reported as the
predominant reported type of deafness. In Malaysia National and Hearing Disorder
Survey was done in 2005 to look into the magnitude of Hearing Impairment and Ear
diseases. In this survey, the prevalence of hearing impairment in the general
population was 17.14% with an estimated population of 3,962,879.