Outcome predictors of systemic lupus erythematosus requiring admission to the intensive care unit

Table 2 Laboratory investigations at intensive care unit admission

Parameter		All patients (n = 77)	Survivors (n = 38)	Non-survivors (n = 39)	P value
Hemoglobin, g/dL		8.3 (2.2)	8.4 (2.5)	8.4 (2.5)	0.6
Leucocyte count/mm3		9952 (7984)	10647 (9309)	9274 (6493)	0.77
Platelet count, lakhs/mm3		1.52 (1.03)	1.72 (1.17)	1.33 (0.85)	0.10
Serum creatinine, mg/dL		2.12 (2.0)	2.3 (2.3)	1.9 (1.6)	0.38
Serum albumin, g/dL		2.42 (0.67)	2.28 (0.65)	2.56 (0.67)	0.08
Admission pH		7.39 (0.12)	7.38 (0.13)	7.41 (0.12)	0.27
Bicarbonate, mmol/L		18.2 (6)	18.2 (6.7)	18.2 (5.1)	0.98
Admission lactate, median (IQR), mmol/L		1.5 (0.9-2.8)	1.7 (0.8-2.7)	1.4 (1.1-2.9)	0.12
CRP, (n = 49), median (IQR), mg/L		25 (5.6-100)	25 (7.2-124)	24 (4-100)	0.56
Procalcitonin, (n = 45), median (IQR), μg/dL		3.1 (0.38-25)	4.93 (0.72-30.8)	2.43 (0.37-23)	0.59
Low serum C3 (n = 73)		51.4 (30.2)	51.5 (30.6)	51.4 (30.3)	0.99
Low serum C4 (n = 71)		13.3 (8.7)	13.3 (7.7)	3.2 (9.8)	0.94
ANA (n = 60)	0	3	1	2	0.36
	1+	4	4	0
	2+	28	15	13
	3+	18	8	10
	4+	7	3	4
dsDNA (n = 73)		452 (374)	490 (374)	414 (374)	0.39

All values are mean ± SD unless specified. CRP: C-reactive protein; IQR: Interquartile range; ANA: Antinuclear antibody; dsDNA: Double-stranded DNA; n: Indicates the number of patients in whom the data were available.