Table 5.

Observed and predicted length of ICU stay and ICU length of stay ratio for post-operative patients

	Median (IQR) ICU Length of Stay
BMI	Observed	Predicted	Ratio
< 18.5	1.54 (0.85–3.02)	3.80 (2.97–4.73)	0.45 (0.25–0.86)
18.5–24.9	1.03 (0.81–2.08)	3.57 (2.67–4.50)	0.40 (0.24–0.73)
25.0–29.9	1.04 (0.82–2.17)	3.61 (2.68–4.50)	0.41 (0.24–0.77)
30.0–39.9	1.03 (0.81–2.07)	3.55 (2.58–4.49)	0.41 (0.25–0.76)
≥ 40.0	1.57 (0.84–2.54)	3.29 (1.68–4.30)	0.54 (0.30–0.96)

LOS = Length of stay; ICU = Intensive care unit; IQR = Interquartile range