Table 1.

Literature evaluation and selection, according to PRISMA criteria.

Total number of articles obtained by PubMed, Embase, and Cinahl search	76
Other papers from references in the published literature	6
Total number of papers identified	82
Papers excluded 1	63
Articles assessed for eligibility	19
Papers excluded 2	5
Total number of papers finally identified	14

¹ Exclusion criteria were (i) studies published in non-English languages; (ii) studies containing aggregated or duplicated data from previously published works; (iii) syndromes and conditions associated with hearing loss (e.g., noise exposure). ² Exclusion criteria were (i) other topics; (ii) no extractable data.