Reliability of nurse-administered infant hearing screening using otoacoustic emissions

In South Africa (SA), congenital hearing loss (HL) is identified at around 30 months of age, which is later than local standards of identification by 6 weeks, mainly because of limited access to infant and newborn hearing screening (INHS). Thus, there is a critical need to explore other models of providing early detection such as nurse-administered INHS.

This study aimed to determine the reliability of nurse-administered INHS.

This was a repeated-measures study where 50 infants scheduled to receive their 6-week immunisation were independently screened by two nurses and an audiologist using distortion product otoacoustic emissions (DPOAE). Data were analysed using Cohen's kappa, using Stata v18 for Macintosh.

Thirteen (n = 13, 26%) infants failed DPOAE screening tests, of which four were male and nine (n = 9) were female. All participants who failed the screening were referred to the hospital for further evaluation and intervention as needed. Further analysis revealed an almost perfect agreement between audiologist- and nurse-administered screening (k = 0.81, p  0.001).

Findings from this study demonstrate that nurses can consistently screen and identify babies with congenital HL using DPOAE screening tests. Furthermore, these findings pave the way for incorporating nurse-administered DPOAE screening into immunisation programmes, with the potential to increase access to INHS and reduce the age of identification of congenital HL to acceptable standards. Large-scale research is recommended to explore the implementation of this nurse-administered INHS in other contexts. Contribution: This study contributes to the growing body of evidence on INHS in SA.