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Hyperglycemia, diabetes, and de novo diabetes in patients hospitalized in intensive care units for COVID-19 in Colombia: Results from a longitudinal cohort study

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Jul 31, 2025

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Fig. 1.

Patient flowchart
Patient flowchart

Fig. 2.

Receiver Operating Characteristic (ROC) Curve for the association between 60-day mortality and blood glucose (a) or glycated hemoglobin (b)
Receiver Operating Characteristic (ROC) Curve for the association between 60-day mortality and blood glucose (a) or glycated hemoglobin (b)

Fig. 3.

Kaplan-Meier Curve for the association between 60-day mortality and the presence of a history of type 2 diabetes (a) or de novo diabetes (b). The p-value was calculated using the Log Rank Test technique
Kaplan-Meier Curve for the association between 60-day mortality and the presence of a history of type 2 diabetes (a) or de novo diabetes (b). The p-value was calculated using the Log Rank Test technique

Laboratory Results and Outcomes

Characteristics Total (n=547) No diabetes (n= 347) Type 2 diabetes (n= 133) De novo diabetes (n= 67)
Laboratories, mean (SD)
White blood cell count (×103 cells/μL) 11894 (9607) 11894 (9607) 11911 (9685) 11870 (9670)
Lymphocytes (×103 cells/μL) 982 (1626) 905 (772) 867 (724) 899 (785)
Platelet count (×103 cells/μL) 241723 (95848) 241723 (95848) 242059 (95948) 241986 (96157)
Lactate (mmol/L) 1.96 (1.78) 1.96 (1.78) 1.98 (1.79) 1.96 (1.79)
Creatinin (mg/dL) 0.28 (0.73) 0.27 (0.73) 0.29 (0.74) 2.0 (0.74)
Aspartate aminotransferase (U/L) 126 (424.8) 126 (424.8) 127 (429.12) 126 (428.4)
Alanine aminotransferase (U/L) 97 (235.62) 97 (235.62) 98 (237.91) 93 (208.2)
Prothrombin time (seg) 12 (9.13) 12 (9.13) 12 (9.22) 12 (9.21)
Partial thromboplastin time (seg) 28.2 (17.7) 28.2 (17.7) 28.2 (17.92) 28.3 (17.92)
C-reactive protein (mg/L) 18.3 (20.21) 18.3 (20.21) 18.4 (20.36) 18.4 (20.34)
Ferritin (ng/mL) 1054 (635.43) 1054 (635.43) 1058 (628.93) 1052 (635.49)
D – Dimer (μg/mL) 220 (2100) 220 (2100) 224 (2122) 224 (2122)
Lactate dehydrogenase, U/L 1163 (5530) 1163 (5530) 1163 (5582) 1167 (5568)
Positive troponin, n(%) 257 (47.0%) 172 (50.0%) 49 (37.0%) 36 (54.0%)
PaO2/FiO2 Ratio 103 (61.41) 103 (61.41) 104 (61.77) 103 (61.68)

Clinical Prediction Rules, mean (SD)
Acute Physiology And Chronic Health
Evaluation (APACHE) II at admission 14.58 (7.16) 14.58 (7.16) 14.62 (7.17) 14.56 (7.13)
Sequential Organ Failure Assessment (SOFA) at admission 5.22 (3.55) 5.22 (3.55) 5.21 (3.57) 5.22 (3.54)
CURB-65 1.82 (1.03) 1.82 (1.03) 1.82 (1.04) 1.81 (1.03)

Organ Dysfunctions, n (%)
Severe ARDS (Pa/FiO2 <100) 341 (62.34%) 259 (75.0%) 77 (58.0%) 50 (75.0%)
Acute Liver Injury 60 (10.96%) 53 (15.2%) 7 (5.3%) 11 (16.4%)
Coagulopathy 59 (10.78%) 46 (13.31%) 12 (9.0%) 13 (19.4%)
CNS Involvement 50 (9.14) 37 (11.0%) 12 (9.0%) 12 (18.0%)
Acute Myocardial Injury 141 (25.77) 108 (31.1%) 30 (23.0%) 23 (34.3%)
Pulmonary embolism, n (%) 65 (11.88%) 51 (15.0%) 13 (10.0%) 17 (25.3%)
Length of Hospital Stay, mean (SD) 23.6 (18.45) 23.6 (18.45) 23.75 (18.58) 23.68 (18.56)
Death, n (%) 317 (58.0%) 211 (61.0%) 65 (49.0%) 41 (61.2%)

Results of Bivariate Analyses

HR 95% Confidence Interval p value
All diabetes 0.888 0.6953 – 1.135 0.344
History of diabetes 0.881 0.6675 – 1.163 0.371
De novo diabetes 0.963 0.672 – 1.378 0.835

General characteristics of the population

Characteristics Total (n=547) No diabetes (n= 347) Type 2 diabetes (n= 133) De novo diabetes (n= 67)
Female sex, n (%) 196 (36%) 130 (37.5%) 62 (46.7%) 25 (37.3%)
Age (years), mean (SD) 59.8 (14.3) 59.83 (17.0) 60.2 (13.9) 59.6 (14.2)
20–29, n (%) 19 (3.4%) 17 (4.8%) 3 (2.3%) 3 (4.5%)
30–39 36 (6.5%) 29 (8.3%) 7 (5.2%) 3 (4.5%)
40–49 76 (13.9%) 65 (18.7%) 9 (6.8%) 7 (10.5%)
50–59 112 (20.4%) 84 (24.2%) 25 (18.8%) 19 (28.3%)
60–69 154 (28.1%) 103 (29.6%) 49 (36.8%) 26 (39.0%)
70–79 112 (20.4%) 77 (22.2%) 31 (23.3%) 15 (22.4%)
80–89 37 (6.7%) 28 (8.06%) 9 (6.8%) 4 (6.0%)
<=90 0 (0%) 0 (0%) 0 (0%) 0 (0%)
Obesity, n (%) 154 (28.1%) 112 (32.3%) 41 (30.8%) 20 (30.0%)

Comorbidities, n (%)
Hypertension 237 (43.3%) 140 (40.3%) 93 (70.0%) 28 (42.0%)
Chronic Heart Disease (excluding Hypertension) 60 (19.9%) 38 (11.0%) 22 (16.5%) 8 (12.0%)
Chronic kidney disease 22 (4.0%) 11 (3.2%) 11 (8.3%) 1 (1.5%)
Smoking 131 (23.9%) 99 (28.5%) 31 (23.3%) 13 (19.4%)
Chronic lung disease 107 (19.5%) 72 (20.7%) 34 (25.6%) 14 (21.0%)
Chronic Neurological Disease or Dementia 25 (4.5%) 16 (4.6%) 9 (6.8%) 3 (4.5%)
Human Immunodeficiency Virus 1 (0.18%) 1 (0.3%) 0 (0%) 0 (0%)
Autoimmune disease 6 (1.09%) 6 (1.7%) 0 (0%) 0 (0%)
Cancer 15 (2.74%) 9 (2.6%) 6 (4.5%) 3 (4.5%)
Chronic liver disease 6 (1.09%) 5 (1.5%) 1 (0.8%) 1 (1.5%)
Symptom duration before ICU (days), mean (SD) 8 (4.23) 8 (4.23) 8 (4.13) 8 (4.23)