Table 2.

Risk of unplanned ICU admission stratified according to pre-operative albumin level for primary total joint arthroplasty patients (n=779). This group analysis excluded staged and simultaneous bilateral arthroplasty procedures

Albumin category	Number of Patients	Unplanned ICU Admit	% Unplanned ICU Admit	Average BMI
< 3.0 g/dL	7	2	28.57%	31.43
3.0-3.5 g/dL	110	5	4.55%	34.85
≤ 3.5 g/dL	117	7	s5.98%	34.65
3.6-3.9 g/dL	298	10	3.36%	33.94
4.0-4.5 g/dL	340	9	2.65%	30.94
4.6-5.0+ g/dL	24	0	0.00%	31.25

ICU = Intensive Care Unit

BMI = Body Mass Index