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. 2021 Oct 13;8:757510. doi: 10.3389/fmed.2021.757510

Table 3.

Summary of clinical presentations, laboratory investigations and radiological imaging of the study population.

Parameters Thal, n (%) SCD, n (%)
Clinical symptoms n = 41 n = 79
Asymptomatic 1 (2.4) 7 (8.9)
Systemic symptoms
Fever 31 (75.6) 52 (65.8)
Vaso-occlusive crisis N/A 90 (55.6)
Fatigue 16 (39.0) 2 (2.5)
Anorexia 7 (17.1) 7 (8.9)
Respiratory
Cough 30 (73.2) 35 (44.3)
Shortness of breath 13 (31.7) 23 (29.1)
Sore throat 10 (24.4) 2 (2.5)
Nasal symptoms (rhinorrhea, sneezing, sinusitis) 6 (14.6) 3 (3.8)
Gastrointestinal
Nausea, vomiting, diarrhea 13 (31.7) 14 (17.7)
Musculoskeletal
Myalgia 4 (9.8) 21 (26.6)
Neurological
Headache 11 (26.8) 9 (11.4)
Anosmia 12 (29.3) 3 (3.8)
Ageusia 7 (17.1) 2 (2.5)
Ophthalmology
Conjunctivitis 3 (7.3) 0 (0)
SpO 2 n = 41 n = 79
≥95% 15 (36.6) 52 (65.8)
<95% 26 (63.4) 27 (34.2)
Laboratory investigations*
Hemoglobin n = 68 n = 64
Normal 6 (8.8) 21 (32.8)
Low 62 (91.2) 43 (67.2)
White cell count n = 42 n = 25
Normal 17 (40.5) 14 (56.0)
High 23 (54.8) 11 (44.0)
Low 2 (4.8) 0 (0)
Lymphocyte count n = 14 n = 30
Normal 12 (85.7) 16 (53.3)
High 1 (7.1) 2 (6.7)
Low 1 (7.1) 12 (40.0)
Neutrophil count n = 4 n = 1
Normal 2 (50.0) 0 (0)
High 1 (25.0) 1 (100.0)
Low 1 (25.0) 0 (0)
Platelet n = 48 n = 46
Normal 27 (55.1) 31 (67.4)
High 21 (42.9) 8 (17.4)
Low 0 (0) 7 (15.2)
C-Reactive protein n = 14 n = 32
Normal 8 (57.1) 8 (25.0)
High 6 (42.9) 24 (75.0)
D-dimer n = 4 n = 17
Normal 1 (25.0) 1 (5.9)
High 3 (75.0) 16 (94.1)
Lactate dehydrogenase n = 11 n = 10
Normal 7 (63.6) 0 (0)
High 4 (36.4) 10 (100.0)
Erythrocyte sedimentation rate n = 10 n = 4
Normal 7 (70.0) 0 (0)
High 3 (30.0) 4 (100.0)
Procalcitonin n = 1 n = 5
Normal 1 (100.0) 1 (20.0)
High 0 (0) 4 (80.0)
Fibrinogen n = 1 n = 4
High 1 (100.0) 4 (100.0)
Radiological findings
Chest X-ray n = 12 n = 27
Normal 4 (33.3) 10 (37.0)
Ground glass opacity 0 (0) 2 (7.4)
Consolidation 1 (8.3) 9 (33.3)
Combined ground glass opacity and consolidation 0 (0) 1 (3.8)
Others§ 0 (0) 5 (18.5)
Not specified 7 (58.4) 0 (0)
Computed Tomography thorax n = 8 n = 9
Normal 3 (37.5) 1 (11.1)
Ground glass opacity 1 (12.5) 0 (0)
Consolidation 0 (0) 2 (22.2)
Combined ground glass and consolidation 0 (0) 4 (44.5)
Others 1 (12.5) 2 (22.2)
Not specified 3 (37.5) 0 (0)
COVID-19 staging n = 26 n = 55
1 0 (0) 8 (14.5)
2 7 (26.9) 22 (40.0)
3 9 (34.6) 6 (10.9)
4 10 (38.5) 10 (18.2)
5 0 (0) 9 (16.4)

SCD, sickle cell disease; Thal, thalassemia; N, number; N/A, not applicable.

*

Categorized into high, normal or low according to the articles' local laboratory reference values.

§

Described changes such as reticular opacity, atelectasis, perihilar streaking, interstitial or alveolar infiltration.

Described changes such as interstitial or alveolar infiltration, halo sign.

Staging based on NIH guidelines (7).