Grade 1 Hearing Impaired, CTCAE

**Semantic type:** Finding

**Definition:** Adult: Subjective change in hearing in the absence of documented hearing loss; threshold shift of 15 - 25 dB averaged at 2 contiguous test frequencies in at least one ear (on a 1, 2, 4, 3, 6, and 8 kHz audiogram); Pediatric (on a 1, 2, 3, 4, 6, and 8 kHz audiogram): Threshold shift >20 dB hearing loss (HL) (i.e., 25 dB HL or greater); sensorineural hearing loss (SNHL) above 4 kHz (i.e., 6 or 8 kHz) in at least one ear

**Synonyms:** - Grade 1 Hearing impaired - Grade 1 Hearing impaired