Obesity and Overweight Are Independently Associated with Greater Survival in Critically Ill Diabetic Patients: A Retrospective Cohort Study
Table 2
Clinical outcomes of the study patients by BMI category.
Outcomes
Overall ()
Normal weight ()
Overweight ()
Obesity ()
value
Primary
30-day mortality, (%)
665 (10.9)
212 (16.1)
204 (10.6)a
249 (8.7)a
<0.001
90-day mortality, (%)
962 (15.7)
303 (23.0)
309 (16.1)a
350 (12.2)a
<0.001
Secondary
ICU mortality, (%)
394 (6.5)
122 (9.3)
115 (6.0)a
157 (5.5)a
<0.001
Hospital mortality, (%)
547 (9.0)
177 (13.4)
158 (8.2)a
212 (7.4)a
<0.001
ICU LOS (days)
2.8 (1.7, 5.1)
2.8 (1.8, 5.0)
2.7 (1.6, 4.8)
2.9 (1.7, 5.3)
0.012
Hospital LOS (days)
8.2 (5.3, 13.6)
8.3 (5.3, 13.6)
7.9 (5.1, 13.0)
8.3 (5.4, 14.0)
0.012
Ventilation, (%)
3823 (62.6)
774 (58.8)
1192 (62.0)
1857 (64.7)a
0.001
Ventilation duration (hours)
18.0 (6.0, 75.2)
19.3 (7.0, 73.1)
15.1 (5.2, 55.8)b
19.0 (6.0, 93.7)
<0.001
RRT, (%)
506 (8.3)
118 (9.0)
164 (8.5)
224 (7.8)
0.407
Vasopressor, (%)
1574 (25.8)
341 (25.9)
498 (25.9)
735 (25.6)
0.972
Abbreviations: BMI: body mass index; ICU: intensive care unit; LOS: length of stay; RRT: renal replacement therapy. Nonnormally distributed data are presented as median (IQR), and categorical variables are presented as (%). a compared with the normal weight group. b compared with the normal weight group.
