Table 4. Correlation of severity of disease with comorbidities and post-COVID-19 manifestations (N = 158).

Calculated using chi-square test; *p-value of <0.05 considered statistically significant

COVID-19: coronavirus disease 2019

	Mild, n (%)	Moderate, n (%)	Severe, n (%)	p-Value
Comorbidities
Diabetes mellitus	4 (26.7)	5 (33.3)	6 (40.0)	<0.001*
Hypertension	6 (28.6)	7 (33.3)	8 (38.1)	<0.001*
Asthma	10 (62.5)	4 (25.0)	2 (12.5)	0.699
Hypothyroidism	3 (60.0)	2 (40.0)	0 (0.0)	0.493
Chronic kidney disease	0 (0.0)	1 (50.0)	1 (50.0)	0.038*
Cardiovascular disease	4 (36.4)	3 (27.3)	4 (36.4)	0.001*
Other conditions	15 (55.6)	9 (33.3)	3 (11.1)	0.148
Post-COVID-19 manifestations
Fatigue	86 (65.6)	33 (25.2)	12 (9.2)	0.005*
Anxiety	49 (58.3)	26 (31.0)	9 (10.7)	0.001*
Dyspnea	39 (49.4)	28 (35.4)	12 (15.2)	<0.001*
Persistent cough	35 (50.0)	26 (37.1)	9 (12.9)	<0.001*
Joint pain	42 (56.0)	21 (28.0)	12 (16.0)	<0.001*
Continuous headache	36 (63.2)	16 (28.0)	5 (8.8)	0.225
Poor sleep quality	55 (61.8)	25 (28.1)	9 (10.1)	0.016*
Chest pain	19 (33.9)	25 (44.6)	12 (21.4)	<0.001*
Depression	38 (56.7)	22 (32.8)	7 (10.4)	0.003*
Hair fall	42 (66.7)	19 (30.1)	2 (3.2)	0.020*
Loss of smell and taste	54 (72.0)	16 (21.3)	5 (6.7)	0.794
Brain fog	15 (50.0)	11 (36.7)	4 (13.3)	0.020*
Intermittent fever	33 (61.1)	15 (27.8)	6 (11.1)	0.150
Blurred vision	18 (60.0)	8 (26.7)	4 (13.3)	0.304
Tinnitus	16 (53.3)	11 (36.7)	3 (10.0)	0.046*
Pulmonary fibrosis	3 (50.0)	1 (16.7)	2 (33.3)	0.074
Diabetes	0 (0.0)	1 (100.0)	0 (0.0)	0.149
Stroke	0 (0.0)	0 (0.0)	1 (100.0)	0.004*
Renal failure	0 (0.0)	1 (50.0)	1 (50.0)	0.038*