Table 1: Mapping of Deaf community groups with a degree of hearing loss and communication source [3, 20, 21].

Deaf Community GroupsDegree of Hearing LossCommunication Source

Hard-of-Hearing PeopleMild to SevereSpeech/Sign Language
Culturally Deaf PeopleProfoundSign Language
Congenital or Pre-lingual Deaf PeopleProfoundSign Language
Orally Educated or Post-lingual Deaf PeopleSevere to ProfoundSpeech/Sign Language
Late-Deafened AdultsModerate to ProfoundSpeech/Sign Language