Table 3.

Descriptive analysis of Audiometric Thresholds: Primary care (control group) vs COVID-19 patients (test group).

Pure-tone audiometric thresholds (Hz)1	Control group Primary care (mean + standard deviation dB)	Test group COVID-19 Unit (mean + standard deviation dB)	p value (1) (for differences between groups)
125	$30.47\pm 6.27$	$25.71\pm 8.07$	$0.015$
250	$27.66\pm 5.35$	$28.66\pm 6.29$	$0.511$
500	$25.23\pm 0.83$	$27.23\pm 6.29$	$0.166$
1000	$18.52\pm 5.49$	$25.36\pm 6.79$	$<\mathbf{0}\mathbf{.}\mathbf{001}$
2000	$17.50\pm 5.57$	$21.96\pm 7.05$	$\mathbf{0}\mathbf{.}\mathbf{010}$
3000	$17.97\pm 8.07$	$25\pm 9.38$	$\mathbf{0}\mathbf{.}\mathbf{003}$
4000	$20.16\pm 10.12$	$29.55\pm 11.26$	$\mathbf{0}\mathbf{.}\mathbf{001}$
8000	$31.09\pm 12.75$	$40.71\pm 19.40$	$\mathbf{0}\mathbf{.}\mathbf{030}$
PTA2	$20.42\pm 4.29$	$24.85\pm 5.62$	$\mathbf{0}\mathbf{.}\mathbf{001}$

1- Left + right ear mean was calculated for each patient for analysis. 2- Pure tone average calculated with left + right ear mean values of 500, 1000 and 2000 Hz. Independent t-test used for comparing subgroups. Statistically significant p values are highlighted in bold.