Table 3.

The BMI subgroups that are independently associated with hospital mortality in each admission diagnosis group using BMI of 18.5 to 24.9 as reference

Admission diagnosis	BMI subgroup	Odds Ratio (95%CI)	P-value
Cardiovascular	< 18.5	2.84 (1.70–4.74)	< 0.001
Genitourinary	< 18.5	4.15 (1.21–14.25)	0.0236
Gastrointestinal	None
Hematology	None
Metabolism/endocrine	None
Musculoskeletal	< 18.5	3.70 (1.20–11.38)	0.0227
Neurology	30–39.9	2.74 (1.29–5.81)	0.0086
Respiratory	30–39.9	0.72 (0.56–0.94)	0.0138
Transplant	None
Trauma	None