Table 1.

shows characteristics of COVID-19 patients with resolved or persistent olfactory dysfunction.

	Early recovery (within 1 month from onset)
	Partial		Complete		No recovery		Chi-square
	N	%	N	%	N	%	X2	P-value
Age (years)
<20	14	35	2	6.3	0	0.0	60.547	<0.001**
20–<30	2	5	10	31.3	4	16.7
31–<40	16	40	15	46.9	1	4.2
40–<50	8	20	1	3.1	6	25.0
≥50	0	0	4	12.5	13	54.2
Sex
Female	24	60	23	71.9	7	29.2	10.557	0.005*
Male	16	40	9	28.1	17	70.8
Other COVID-19 manifestation
Other COVID-19 symptoms	9	22.5	2	6.3	23	95.8	51.032	<0.001**
No	31	77.5	30	93.8	1	4.2
Family history of anosmia before or after
Yes	31	77.5	21	65.6	20	83.3	2.522	0.283
No	9	22.5	11	34.4	4	16.7
History of general disease
DM	0	0	0	0.0	8	33.3	51.032	<0.001**
HTN	3	7.5	0	0.0	9	37.5
No	36	90	29	90.6	7	29.2
History of nasal diseases
Allergic	3	7.5	2	6.3	19	79.2	50.089	<0.001**
No	37	92.5	30	93.8	5	20.8
Smoking
Yes	4	10	2	6.3	10	41.7	14.580	<0.001**
No	36	90	30	93.8	14	58.3

>0.05 non-significant, <0.05* significant and <0.001** highly significant.