Development and validation of a digits-in-noise hearing test in Persian.
Lina Motlagh Zadeh, Noah H Silbert, Katherine Sternasty and 1 others
PMID 32903129WHAT IT FOUND
A Persian hearing screening test using numbers spoken in noise was developed, but it gave poorer scores for young Persian adults with normal hearing than the English version.
It was not yet validated in people with hearing loss.
Key findings
01The Persian digits-in-noise test produced a mean speech reception threshold of -7.7 dB in the evaluation experiment.
02This mean threshold was higher, and therefore poorer, than the -9.3 dB mean for the US English digits-in-noise test developed with the same method.
03Persian digits produced five large confusions, compared with two large confusions for English digits.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
Only young Persian-speaking graduate students with normal hearing were tested, so the results may not apply to older adults, people with hearing loss, or Persian speakers outside this group. The test was not evaluated in people with hearing loss, so it does not yet show screening accuracy. Test-retest reliability was moderate, and scores improved slightly on retest, suggesting a small learning effect. The Persian and English comparisons used different talkers, so talker-specific factors may have influenced the observed difference. No clinical cutoff or diagnostic accuracy values are reported.
Declared interests
Research support is listed as NIH and non-U.S. government funding, but no detailed conflict declaration is supplied.
The easy way to misread this
Do not read this as a validated clinical hearing screening test for Persian-speaking patients. It was developed and evaluated in young Persian speakers with normal hearing, not in people with hearing loss, and its test-retest reliability was only moderate.