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. 2021 Jul 22;11(7):e051237. doi: 10.1136/bmjopen-2021-051237

Table 1.

Baseline characteristics of the studied cohorts at hospital admission

Characteristic Overall study population
N=2069
Diabetes
N=448
No diabetes
N=1621
P value
Age, mean (SD), years 67.8 (15.7) 71.7 (11.9) 66.6 (16.3) <0.001
Age, median (P25, P75), years 69.0 (57.0, 80.0) 72.0 (64.0, 80.0) 67.0 (55.0, 79.0) <0.001
Sex (male), n (%) 1205 (60.3) 304 (67.9) 950 (58.6) <0.001
Glucose, mean, (SD) <0.001
 mg/dL 124 (47.7) 168 (74.4) 112 (24.8)
 mmol/L 6.8 (2.6) 9.3 (4.1) 6.2 (1.4)
Comorbidities, n (%)
 Hypertension 651 (31.5) 224 (50.0) 427 (26.3) <0.001
 Hyperlipidaemia 409 (19.8) 154 (34.4) 255 (15.7) <0.001
 Obesity 117 (5.65) 45 (10.0) 72 (4.44) <0.001
 Cardiovascular diseases 77 (3.72) 28 (6.25) 49 (3.02) 0.002
 Heart failure 51 (2.46) 18 (4.02) 33 (2.04) 0.026
 Cerebrovascular diseases 27 (1.30) 10 (2.23) 17 (1.05) 0.086
 Ischaemic heart disease 47 (2.27) 18 (4.02) 29 (1.79) 0.009
 Chronic kidney disease 76 (3.67) 30 (6.70) 46 (2.84) <0.001
 Chronic obstructive pulmonary disease 112 (5.41) 34 (7.59) 78 (4.81) 0.029
 Asthma 2 (0.10) 0 (0.00) 2 (0.12) 1.000
 Mental disorders 114 (5.51) 35 (7.81) 79 (4.87) 0.022
 Cancer 117 (5.65) 36 (8.04) 81 (5.00) 0.019
Pharmacological therapy, n (%)
 Biguanides 66 (3.19) 66 (14.7) 0 (0.00) <0.001
 Sulfonylureas 1 (0.05) 1 (0.22) 0 (0.00) 0.217
 Dipeptidyl peptidase 4 inhibitors 11 (0.53) 11 (2.46) 0 (0.00) <0.001
 Fast-acting insulins 95 (4.5) 66 (14.7) 29 (1.79) <0.001
 Intermediate-acting insulins 9 (0.43) 7 (1.56) 2 (0.12) 0.001
 Long-acting insulins 23 (1.11) 20 (4.46) 3 (0.19) <0.001
 Antibiotics 1882 (91.0) 421 (94.0) 1461 (90.1) 0.016
 Antithrombotics 1752 (84.7) 396 (88.4) 1356 (83.7) 0.017
 Renin-angiotensin system agents 523 (25.3) 153 (34.2) 370 (22.8) <0.001
 Beta blocking agents 316 (15.3) 104 (23.2) 212 (13.1) <0.001
 Calcium channel blockers 384 (18.6) 118 (26.3) 266 (16.4) <0.001
 Diuretics 508 (24.6) 185 (41.3) 323 (19.9) <0.001
 Statins 256 (12.4) 88 (19.6) 168 (10.4) <0.001
 Systemic corticosteroids 977 (47.2) 267 (59.6) 710 (43.8) <0.001
 Tocilizumab 421 (20.3) 137 (30.6) 284 (17.5) <0.001

P25, P75=25th and 75th percentile, respectively.