Table 1.

Clinical characteristics and demographics of the study patients according to disease status and severity.

CharacteristicsSARS-CoV-2 statusCOVID-19 severity
SARS-CoV-2(+)SARS-COV-2 (−)P-valueNonsevereSevereP-value
n = 50 (%)n = 30 (%)n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
Age ≤50 yearsAge >50 years21/49 (43)28/49 (57)30/30 (100)0/30 (0)<0.00117/38 (45)21/38 (55)4/11 (36)7/11 (64)0.62
FemaleMale22/50 (44)28/50 (56)14/30 (47)16/30 (53)0.8119/39 (49)2039 (51)3/11 (27)8/11 (73)0.20
DiabeticNondiabetic22/50 (44)28/50 (56)1/30 (3)29/30 (97)<0.00121/39 (54)18/39 (46)1/11 (9)10/11 (91)0.008
Heart diseaseNo heart disease8/50 (16)42/50 (84)0/30 (0)30/30 (100)0.026/39 (15)33/39 (85)2/11 (18)9/11 (82)0.82
HypertensionNo hypertension22/50 (44)28/50 (56)0/30 (0)30/30 (100)<0.00118/39 (46)21/39 (54)4/11 (36)7/11 (67)0.56
BMI ≤ 35BMI > 3530/48 (62.5)18/48 (37.5)27/30 (90)3/30 (10)0.00824/38 (63)14/38 (37)6/10 (60)4/10 (40)0.85
SmokersNonsmokers1/50 (2)49/50 (98)17/27 (63)10/27 (37)<0.0010/39 (0)39/39 (100)1/11 (9)10/11 (91)0.05
Chronic coughNo chronic cough49/50 (98)1/50 (2)29/29 (100)0/29 (0)0.4438/39 (97)1/39 (3)11/11 (100)0/11 (0)0.59
Chest painNo chest pain12/50 (24)38/50 (76)3/29 (10)26/29 (90)0.138/39 (21)31/39 (79)4/11 (36)7/11 (64)0.27
ArthritisNo arthritis10/50 (20)40/50 (80)1/30 (3)29/30 (97)0.039/39 (23)30/39 (77)1/11 (9)10/11 (91)0.30
CancerNo cancer3/50 (6)47/50 (94)0/30 (0)30/30 (100)0.173/39 (8)36/39 (92)0/11 (0)11/11 (100)0.34
AsthmaNo asthma5/50 (10)45/50 (90)0/29 (0)29/29 (100)0.075/39 (13)34/39 (87)0/11 (0)11/11 (100)0.21
Medication in the past 2 yearsNo medication in the past 2 years20/50 (40)6/50 (12)3/29 (10)26/29 (90)<0.00118/39 (46)4/39 (10)2/11 (18)2/11 (18)0.24
CharacteristicsSARS-CoV-2 statusCOVID-19 severity
SARS-CoV-2(+)SARS-COV-2 (−)P-valueNonsevereSevereP-value
n = 50 (%)n = 30 (%)n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
Age ≤50 yearsAge >50 years21/49 (43)28/49 (57)30/30 (100)0/30 (0)<0.00117/38 (45)21/38 (55)4/11 (36)7/11 (64)0.62
FemaleMale22/50 (44)28/50 (56)14/30 (47)16/30 (53)0.8119/39 (49)2039 (51)3/11 (27)8/11 (73)0.20
DiabeticNondiabetic22/50 (44)28/50 (56)1/30 (3)29/30 (97)<0.00121/39 (54)18/39 (46)1/11 (9)10/11 (91)0.008
Heart diseaseNo heart disease8/50 (16)42/50 (84)0/30 (0)30/30 (100)0.026/39 (15)33/39 (85)2/11 (18)9/11 (82)0.82
HypertensionNo hypertension22/50 (44)28/50 (56)0/30 (0)30/30 (100)<0.00118/39 (46)21/39 (54)4/11 (36)7/11 (67)0.56
BMI ≤ 35BMI > 3530/48 (62.5)18/48 (37.5)27/30 (90)3/30 (10)0.00824/38 (63)14/38 (37)6/10 (60)4/10 (40)0.85
SmokersNonsmokers1/50 (2)49/50 (98)17/27 (63)10/27 (37)<0.0010/39 (0)39/39 (100)1/11 (9)10/11 (91)0.05
Chronic coughNo chronic cough49/50 (98)1/50 (2)29/29 (100)0/29 (0)0.4438/39 (97)1/39 (3)11/11 (100)0/11 (0)0.59
Chest painNo chest pain12/50 (24)38/50 (76)3/29 (10)26/29 (90)0.138/39 (21)31/39 (79)4/11 (36)7/11 (64)0.27
ArthritisNo arthritis10/50 (20)40/50 (80)1/30 (3)29/30 (97)0.039/39 (23)30/39 (77)1/11 (9)10/11 (91)0.30
CancerNo cancer3/50 (6)47/50 (94)0/30 (0)30/30 (100)0.173/39 (8)36/39 (92)0/11 (0)11/11 (100)0.34
AsthmaNo asthma5/50 (10)45/50 (90)0/29 (0)29/29 (100)0.075/39 (13)34/39 (87)0/11 (0)11/11 (100)0.21
Medication in the past 2 yearsNo medication in the past 2 years20/50 (40)6/50 (12)3/29 (10)26/29 (90)<0.00118/39 (46)4/39 (10)2/11 (18)2/11 (18)0.24
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
FeverNo fever22/39 (56)17/39 (44)2/11 (18)9/11 (82)0.02
Shortness of breathNo shortness of breath23/39 (59)16/39 (41)9/11 (82)2/11 (18)0.16
Persistent painNo persistent pain18/39 (46)20/39 (51)5/11 (45)6/11 (55)0.86
Respiratory distress ≤20/minRespiratory distress >20/min12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sore throatNo sore throat12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sputum productionNo sputum production19/39 (49)20/39 (51)4/11 (36)7/11 (64)0.46
CongestionNo congestion4/39 (10)35/39 (90)4/11 (36)7/11 (64)0.03
Loss of taste/smellNo loss of taste/smell12/39 (31)27/39 (69)6/11 (55)5/11 (45)0.14
ChillsNo chills23/39 (59)16/39 (41)3/11 (27)8/11 (73)0.06
FatigueNo fatigue25/39 (64)14/39 (36)8/11 (73)3/11 (27)0.59
Muscle acheNo muscle ache23/39 (59)16/39 (41)6/11 (55)5/11 (45)0.79
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
FeverNo fever22/39 (56)17/39 (44)2/11 (18)9/11 (82)0.02
Shortness of breathNo shortness of breath23/39 (59)16/39 (41)9/11 (82)2/11 (18)0.16
Persistent painNo persistent pain18/39 (46)20/39 (51)5/11 (45)6/11 (55)0.86
Respiratory distress ≤20/minRespiratory distress >20/min12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sore throatNo sore throat12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sputum productionNo sputum production19/39 (49)20/39 (51)4/11 (36)7/11 (64)0.46
CongestionNo congestion4/39 (10)35/39 (90)4/11 (36)7/11 (64)0.03
Loss of taste/smellNo loss of taste/smell12/39 (31)27/39 (69)6/11 (55)5/11 (45)0.14
ChillsNo chills23/39 (59)16/39 (41)3/11 (27)8/11 (73)0.06
FatigueNo fatigue25/39 (64)14/39 (36)8/11 (73)3/11 (27)0.59
Muscle acheNo muscle ache23/39 (59)16/39 (41)6/11 (55)5/11 (45)0.79
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
BloodworkaMedian (IQR)Median (IQR)
ALP75 (28)63 (34)0.29
ALT34 (28)41 (17)0.90
AST41 (19)41 (22)0.77
GGT67 (65)62 (82)0.80
HB129 (26)132 (18)0.52
PCT0.2 (0.1)0.2 (0.17)0.43
PLT215 (90)220 (131)0.16
eGFR87 (40)64 (60)0.17
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
BloodworkaMedian (IQR)Median (IQR)
ALP75 (28)63 (34)0.29
ALT34 (28)41 (17)0.90
AST41 (19)41 (22)0.77
GGT67 (65)62 (82)0.80
HB129 (26)132 (18)0.52
PCT0.2 (0.1)0.2 (0.17)0.43
PLT215 (90)220 (131)0.16
eGFR87 (40)64 (60)0.17

The χ2 test was conducted for categorical variables, and the Mann–Whitney test was conducted for continuous variables. IQR, interquartile range. The severity of the disease was stratified into mild: hospitalized, no oxygen therapy (n = 11); moderate: hospitalized, low-flow oxygen (<10 L/min); and severe: hospitalized, high-flow oxygen (>10 L/min) (n = 39). Mild and moderate groups were combined under “nonsevere”. aBlood work: ALP, alkaline phosphatase (liver function); ALT, alanine transaminase (liver function); AST, aspartate transferees (liver function); BMI, body mass index; GGT, gamma-glutamyl transferase (liver function); HB, hemoglobin; PCT, procalcitonin; PLT, platelet count; eGFR: the measure of kidney function (the lower, the worse). Bold font demonstrates statical significance (P < 0.05). Reference for respiratory distress cut off is 20/min (14).

Table 1.

Clinical characteristics and demographics of the study patients according to disease status and severity.

CharacteristicsSARS-CoV-2 statusCOVID-19 severity
SARS-CoV-2(+)SARS-COV-2 (−)P-valueNonsevereSevereP-value
n = 50 (%)n = 30 (%)n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
Age ≤50 yearsAge >50 years21/49 (43)28/49 (57)30/30 (100)0/30 (0)<0.00117/38 (45)21/38 (55)4/11 (36)7/11 (64)0.62
FemaleMale22/50 (44)28/50 (56)14/30 (47)16/30 (53)0.8119/39 (49)2039 (51)3/11 (27)8/11 (73)0.20
DiabeticNondiabetic22/50 (44)28/50 (56)1/30 (3)29/30 (97)<0.00121/39 (54)18/39 (46)1/11 (9)10/11 (91)0.008
Heart diseaseNo heart disease8/50 (16)42/50 (84)0/30 (0)30/30 (100)0.026/39 (15)33/39 (85)2/11 (18)9/11 (82)0.82
HypertensionNo hypertension22/50 (44)28/50 (56)0/30 (0)30/30 (100)<0.00118/39 (46)21/39 (54)4/11 (36)7/11 (67)0.56
BMI ≤ 35BMI > 3530/48 (62.5)18/48 (37.5)27/30 (90)3/30 (10)0.00824/38 (63)14/38 (37)6/10 (60)4/10 (40)0.85
SmokersNonsmokers1/50 (2)49/50 (98)17/27 (63)10/27 (37)<0.0010/39 (0)39/39 (100)1/11 (9)10/11 (91)0.05
Chronic coughNo chronic cough49/50 (98)1/50 (2)29/29 (100)0/29 (0)0.4438/39 (97)1/39 (3)11/11 (100)0/11 (0)0.59
Chest painNo chest pain12/50 (24)38/50 (76)3/29 (10)26/29 (90)0.138/39 (21)31/39 (79)4/11 (36)7/11 (64)0.27
ArthritisNo arthritis10/50 (20)40/50 (80)1/30 (3)29/30 (97)0.039/39 (23)30/39 (77)1/11 (9)10/11 (91)0.30
CancerNo cancer3/50 (6)47/50 (94)0/30 (0)30/30 (100)0.173/39 (8)36/39 (92)0/11 (0)11/11 (100)0.34
AsthmaNo asthma5/50 (10)45/50 (90)0/29 (0)29/29 (100)0.075/39 (13)34/39 (87)0/11 (0)11/11 (100)0.21
Medication in the past 2 yearsNo medication in the past 2 years20/50 (40)6/50 (12)3/29 (10)26/29 (90)<0.00118/39 (46)4/39 (10)2/11 (18)2/11 (18)0.24
CharacteristicsSARS-CoV-2 statusCOVID-19 severity
SARS-CoV-2(+)SARS-COV-2 (−)P-valueNonsevereSevereP-value
n = 50 (%)n = 30 (%)n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
Age ≤50 yearsAge >50 years21/49 (43)28/49 (57)30/30 (100)0/30 (0)<0.00117/38 (45)21/38 (55)4/11 (36)7/11 (64)0.62
FemaleMale22/50 (44)28/50 (56)14/30 (47)16/30 (53)0.8119/39 (49)2039 (51)3/11 (27)8/11 (73)0.20
DiabeticNondiabetic22/50 (44)28/50 (56)1/30 (3)29/30 (97)<0.00121/39 (54)18/39 (46)1/11 (9)10/11 (91)0.008
Heart diseaseNo heart disease8/50 (16)42/50 (84)0/30 (0)30/30 (100)0.026/39 (15)33/39 (85)2/11 (18)9/11 (82)0.82
HypertensionNo hypertension22/50 (44)28/50 (56)0/30 (0)30/30 (100)<0.00118/39 (46)21/39 (54)4/11 (36)7/11 (67)0.56
BMI ≤ 35BMI > 3530/48 (62.5)18/48 (37.5)27/30 (90)3/30 (10)0.00824/38 (63)14/38 (37)6/10 (60)4/10 (40)0.85
SmokersNonsmokers1/50 (2)49/50 (98)17/27 (63)10/27 (37)<0.0010/39 (0)39/39 (100)1/11 (9)10/11 (91)0.05
Chronic coughNo chronic cough49/50 (98)1/50 (2)29/29 (100)0/29 (0)0.4438/39 (97)1/39 (3)11/11 (100)0/11 (0)0.59
Chest painNo chest pain12/50 (24)38/50 (76)3/29 (10)26/29 (90)0.138/39 (21)31/39 (79)4/11 (36)7/11 (64)0.27
ArthritisNo arthritis10/50 (20)40/50 (80)1/30 (3)29/30 (97)0.039/39 (23)30/39 (77)1/11 (9)10/11 (91)0.30
CancerNo cancer3/50 (6)47/50 (94)0/30 (0)30/30 (100)0.173/39 (8)36/39 (92)0/11 (0)11/11 (100)0.34
AsthmaNo asthma5/50 (10)45/50 (90)0/29 (0)29/29 (100)0.075/39 (13)34/39 (87)0/11 (0)11/11 (100)0.21
Medication in the past 2 yearsNo medication in the past 2 years20/50 (40)6/50 (12)3/29 (10)26/29 (90)<0.00118/39 (46)4/39 (10)2/11 (18)2/11 (18)0.24
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
FeverNo fever22/39 (56)17/39 (44)2/11 (18)9/11 (82)0.02
Shortness of breathNo shortness of breath23/39 (59)16/39 (41)9/11 (82)2/11 (18)0.16
Persistent painNo persistent pain18/39 (46)20/39 (51)5/11 (45)6/11 (55)0.86
Respiratory distress ≤20/minRespiratory distress >20/min12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sore throatNo sore throat12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sputum productionNo sputum production19/39 (49)20/39 (51)4/11 (36)7/11 (64)0.46
CongestionNo congestion4/39 (10)35/39 (90)4/11 (36)7/11 (64)0.03
Loss of taste/smellNo loss of taste/smell12/39 (31)27/39 (69)6/11 (55)5/11 (45)0.14
ChillsNo chills23/39 (59)16/39 (41)3/11 (27)8/11 (73)0.06
FatigueNo fatigue25/39 (64)14/39 (36)8/11 (73)3/11 (27)0.59
Muscle acheNo muscle ache23/39 (59)16/39 (41)6/11 (55)5/11 (45)0.79
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
Variable 1Variable 2Variable 1Variable 2Variable 1Variable 2
FeverNo fever22/39 (56)17/39 (44)2/11 (18)9/11 (82)0.02
Shortness of breathNo shortness of breath23/39 (59)16/39 (41)9/11 (82)2/11 (18)0.16
Persistent painNo persistent pain18/39 (46)20/39 (51)5/11 (45)6/11 (55)0.86
Respiratory distress ≤20/minRespiratory distress >20/min12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sore throatNo sore throat12/39 (31)27/39 (69)2/11 (18)9/11 (82)0.41
Sputum productionNo sputum production19/39 (49)20/39 (51)4/11 (36)7/11 (64)0.46
CongestionNo congestion4/39 (10)35/39 (90)4/11 (36)7/11 (64)0.03
Loss of taste/smellNo loss of taste/smell12/39 (31)27/39 (69)6/11 (55)5/11 (45)0.14
ChillsNo chills23/39 (59)16/39 (41)3/11 (27)8/11 (73)0.06
FatigueNo fatigue25/39 (64)14/39 (36)8/11 (73)3/11 (27)0.59
Muscle acheNo muscle ache23/39 (59)16/39 (41)6/11 (55)5/11 (45)0.79
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
BloodworkaMedian (IQR)Median (IQR)
ALP75 (28)63 (34)0.29
ALT34 (28)41 (17)0.90
AST41 (19)41 (22)0.77
GGT67 (65)62 (82)0.80
HB129 (26)132 (18)0.52
PCT0.2 (0.1)0.2 (0.17)0.43
PLT215 (90)220 (131)0.16
eGFR87 (40)64 (60)0.17
CharacteristicsCOVID-19 symptoms
SARS-CoV-2 severity
Nonsevere (mild/moderate)SevereP-value
n = 39 (%)n = 11 (%)
BloodworkaMedian (IQR)Median (IQR)
ALP75 (28)63 (34)0.29
ALT34 (28)41 (17)0.90
AST41 (19)41 (22)0.77
GGT67 (65)62 (82)0.80
HB129 (26)132 (18)0.52
PCT0.2 (0.1)0.2 (0.17)0.43
PLT215 (90)220 (131)0.16
eGFR87 (40)64 (60)0.17

The χ2 test was conducted for categorical variables, and the Mann–Whitney test was conducted for continuous variables. IQR, interquartile range. The severity of the disease was stratified into mild: hospitalized, no oxygen therapy (n = 11); moderate: hospitalized, low-flow oxygen (<10 L/min); and severe: hospitalized, high-flow oxygen (>10 L/min) (n = 39). Mild and moderate groups were combined under “nonsevere”. aBlood work: ALP, alkaline phosphatase (liver function); ALT, alanine transaminase (liver function); AST, aspartate transferees (liver function); BMI, body mass index; GGT, gamma-glutamyl transferase (liver function); HB, hemoglobin; PCT, procalcitonin; PLT, platelet count; eGFR: the measure of kidney function (the lower, the worse). Bold font demonstrates statical significance (P < 0.05). Reference for respiratory distress cut off is 20/min (14).

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