Observational Study
Copyright ©The Author(s) 2022.
World J Diabetes. Dec 15, 2022; 13(12): 1154-1167
Published online Dec 15, 2022. doi: 10.4239/wjd.v13.i12.1154
Table 1 Clinical and demographic characteristics of patients with type 2 diabetes, with and without coronavirus disease 2019 infection

Patients without COVID-19 infection, n = 144
Patients with COVID-19 infection, n = 65
P value
Age (yr), mean (SD) 63.9 (9.9)59.8 (9.2)0.0051
Median (IQR)65 (57-71)61 (53-66)
Sex, female, n (%)50 (34.7)32 (49.2)0.0662
Population group, n (%)0.0672
Jews63 (44.7)20 (30.8)
Arabs78 (55.3)45 (69.2)
BMI (kg/m2), mean (SD)30.7 (5.9)32.1 (4.6)0.091
Median (IQR)30.3 (27.4-33.8)31.6 (29.1-34.7)
Diabetes duration (yr), median (IQR)13 (8-17.8)10 (5.5-14.5)0.0313
eGFR (mL/min/1.73 m2 body surface area) at baseline, median (IQR)85.4 (62.2-97.6)91.9 (75.3-101.0)0.0333
HbA1c (%), median (IQR)7.6 (6.5-9.1)7.4 (6.6-9.1)1.003
Metformin, n (%)110 (76.9)56 (86.2)0.142
DPP-4 inhibitors, n (%)29 (20.1)18 (27.7)0.282
Sulfonylurea, n (%)8 (5.6)7 (10.8)0.254
SGLT2 inhibitors, n (%)36 (25.0)18 (27.7)0.732
GLP-1 agonists, n (%)25 (17.4)12 (18.5)1.002
Basal insulin, n (%)60 (41.7)18 (27.7)0.0642
Prandial insulin, n (%)30 (21.0)6 (9.2)0.0472
Current smoking, n (%)48 (33.3)4 (6.2)< 0.0012
No albuminuria, n (%)65 (45.1)45 (69.2)0.0022
Albuminuria < 30 mg/g, n (%)79 (54.9)20 (30.8)0.0053
Albuminuria 30-300 mg/g, n (%)65 (45.1)14 (21.5)
Albuminuria > 300 mg/g, n (%)14 (9.7)6 (9.2)
Retinopathy, n (%)21 (21.4)7 (15.2)0.502
NLRmax at hospitalization, median (IQR)4.0 (2.5-7.8)6.5 (2.6-10.0)0.123
CRP (mg/L) at admission, median (IQR)9.7 (4.8-45.4)71.8 (12.2-145.9)< 0.0013
CRPmax (mg/L) at hospitalization, median (IQR)11.3 (5.2-68.1)86.6 (12.2-167.6)< 0.0013
eGFR (mL/min/1.73 m2 body surface area) at hospitalization, median (IQR)86.0(62.2-96.0)92.1(76.2-100.8)0.0303
Albumin, median (IQR)3.8 (3.4-4.0)3.6(3.2-3.9)0.0261
Table 2 Clinical and demographic characteristics of patients type 2 diabetes and coronavirus disease 2019 infection, with and without albuminuria

Diabetic patients without baseline albuminuria, n = 45
Diabetic patients with baseline albuminuria, n = 20
P value
Age (yr), mean (SD)58.7 (9.2)62.2 (9.0)0.161
Median (IQR)60.0 (50.5-65.0)63.0 (56.5-68.8)
Sex, female, n (%)21 (46.7)11 (55.0)0.602
Population group, n (%)0.772
Jews13 (28.9)7 (35.0)
Arabs 32 (71.1)13 (65.0)
BMI (kg/m2), mean (SD)31.6 (4.5)33.2 (4.6)0.191
Median (IQR)30.9 (28.6-33.7)32.3 (29.7-35.9)
Diabetes duration (yr), median (IQR)10.0 (5.5-14.0)11.0 (5.3-17.0)0.251
eGFR (mL/min/1.73 m2 body surface area) at baseline, median (IQR)90.5 (77.8-99.5)95.3 (69.6-101.1)0.903
HbA1c (%), median (IQR)7.2 (6.6-8.4)8.9 (7.3-10.4)0.023
Metformin, n (%)41 (91.1)15 (75)0.124
DPP-4 inhibitors, n (%)15 (33.3)3 (15)0.152
Sulfonylurea, n (%)5 (11.1)2 (10)1.004
SGLT2 inhibitors, n (%)15 (33.3)3 (15)0.152
GLP-1 agonists, n (%)8 (17.8)4 (20)1.004
Basal insulin, n (%)8 (17.8)10 (50)0.0152
Prandial insulin, n (%)2 (4.4)4 (20)0.0674
Current smoking, n (%)2 (4.4)2 (10)0.584
Retinopathy, n (%)4 (12.9)3 (20)0.674
NLRmax, median (IQR)6.2 (2.5-9.4)6.7 (2.6-18.0)0.483
CRP (mg/L) at admission, median (IQR)90.4 (10.9-153.6)43.9 (12.5-106.8)0.333
CRPmax (mg/L) at hospitalization, median (IQR)92.8 (11.4-171.3)61.0 (12.5-157.3)0.603
eGFR (mL/min/1.73 m2 body surface area) at hospitalization, median (IQR)90.3 (77.0-98.4)94.3 (67.8-101)0.763
Albumin, median (IQR)3.6 (3.3-4.0)3.6 (3.1-3.9)0.251
Table 3 Clinical and demographic characteristics of patients with type 2 diabetes, with mild or moderate versus severe or critical coronavirus disease 2019 pneumonia

Mild-moderate COVID-19 pneumonia, n = 34
Severe-critical COVID-19 pneumonia, n = 31
P value
Age (yr), mean (SD)58.6 (10.0)61.2 (8.1)0.261
Median (IQR)59.5 (50.8-65.3)63 (57.0-67.0)
Sex, female, n (%)20 (58.8)12 (38.7)0.142
Population group, n (%)1.002
Jews10 (29.4)10 (32.3)
Arabs 24 (70.6)21 (67.7)
BMI (kg/m2), mean (SD)31.4 (3.8)32.8 (5.2)0.221
Median (IQR)31.2 (28.9-33.6)31.7 (29.3-36.1)
Diabetes duration (yr), median (IQR)9.5 (4.8-12.5)11 (7-17)0.133
eGFR (mL/min/1.73 m2 body surface area) at baseline, median90.4 (74.9-105.5)93.3 (76.0-100.3)0.783
HbA1C (%), median (IQR)7.4 (6.6-9.1)7.4 (6.6-9.4)0.933
Metformin, n (%)30 (88.2)26 (83.9)0.734
DPP-4, n (%)10 (29.4)8 (25.8)0.792
Sulfonylurea, n (%)5 (14.7)2 (6.5)0.434
SGLT2 inhibitors, n (%)11 (32.4)7 (22.6)0.422
GLP-1 agonists, n (%)5 (14.7)7 (22.6)0.532
Basal insulin, n (%)8 (23.5)10 (32.3)0.582
Prandial insulin, n (%)3 (8.8)3 (9.7)1.004
Current smoking, n (%)4 (11.8)0 (0)0.124
No albuminuria, n (%)21 (61.8)24 (77.4)0.192
2-sided
0.142
1-sided
Albuminuria < 30 mg/g, n (%)13 (38.2)7 (22.6)0.1453
2-sided
Albuminuria 30-300 mg/g, n (%)8 (23.5)6 (19.4)0.0733
Albuminuria > 300 mg/g, n (%)5 (14.7)1 (3.2)1-sided
Retinopathy, n (%)4 (16.7)3 (13.6)1.004
NLRmax median (IQR)2.7 (1.7-8.5)9.2 (5.7-15.4)< 0.0013
CRP (mg/L) at admission, median (IQR)15.4 (5.1-80.9)122.1 (70.8-177.2)< 0.0013
CRPmax (mg/L) at hospitalization, median (IQR)15.4 (5.1-86.2)142.3 (87.1-205.1)< 0.0013
eGFR (mL/min/1.73 m2 body surface area) at hospitalization, median (IQR)91.2 (76.0-105.0)93.3 (76.5-100.3)0.903
Albumin (g/dL), mean (SD)3.8 (0.4)3.3 (0.4)< 0.0011
Median (IQR)3.9 (3.6-4.1)3.3 (3.1-3.5)
Table 4 Multivariable logistic regression analysis performed to determine the risk factors for severe coronavirus disease 2019 infection (n = 65)


OR
95%CI
P value
Model 1 Sex (female vs male)0.300.10-0.930.038
Baseline characteristics Age (yr)1.030.98-1.090.28
R-square: 14.4%BMI (kg/m2)1.120.99-1.280.073
Model 2Sex (female vs male)0.570.15-2.160.41
Baseline characteristicsAge (yr)1.020.94-1.110.62
R-square: 34.4%BMI (kg/m2)1.140.96-1.350.13
HbA1c (%)0.850.59-1.230.39
Baseline eGFR (mL/min/ 1.73 m2 of body surface area)1.020.98-1.070.28
NLRmax1.181.05-1.330.007
Model 3Sex (female vs male)0.420.09-1.940.27
Baseline characteristicsAge (yr)1.080.97-1.200.18
R-square = 46.9%BMI (kg/m2)1.241.01-1.530.040
HbA1c (%)1.040.67-1.610.89
Baseline eGFR (mL/min/1.73 m2 of body surface area)1.040.99-1.090.12
NLRmax1.201.06-1.370.005
Albuminuria0.090.01-0.620.015
Table 5 Multivariable logistic regression analysis performed to determine the risk factors for bacterial infection (n = 144)


OR
95%CI
P value
Model 1 Sex (female vs male)1.880.70-5.050.21
Baseline characteristicsAge (yr)0.980.93-1.020.34
R-square: 2.8%BMI (kg/m2)0.950.88-1.040.27
Model 2 Sex (female vs male)7.231.57-33.230.011
Baseline characteristicsAge (yr)1.000.92-1.090.97
R-square: 54.0%BMI (kg/m2)0.940.84-1.050.26
HbA1c (%)1.190.88-1.600.25
Baseline eGFR (mL/min/1.73 m2 of body surface area)1.051.01-1.080.013
NLRmax1.361.21-1.54< 0.001
Model 3Sex (female vs male)7.261.58-33.440.011
Baseline characteristicsBMI (kg/m2)0.940.84-1.050.26
R-square: 54.0%Age (yr)1.000.92-1.090.98
HbA1c (%)1.190.87-1.610.28
Baseline eGFR (mL/min/1.73 m2 of body surface area)1.051.01-1.080.012
NLRmax1.371.21-1.55< 0.001
Albuminuria1.120.32-3.960.86