Postpartum acute renal failure: a multicenter study of risk factors in patients admitted to ICU

Annals of Intensive Care

Table 4 Comparisons according to the severity of ARF ( n = 68)

	ARF 1n= 40	ARF 2n= 9	ARF 3n= 19	pvalue
Age, years^a	30 [26 to 34]	25 [21 to 28]	31 [27 to 33]	0.18
Term (week of gestation)^a	37 [33 to 39]	33 [29 to 38]	37 [36 to 39]	0,2
Number of pregnancy^a	1 [1 to 2]	1 [1 to 1]	2 [1 to 3]	0.04
Twin gestation	2 (5)	0	4 (21)	0.087
SAPS II score^a	20 [16 to 29]	27 [21 to 29]	37 [33 to 45]	< 0.001
Length of ICU stay (days)^a	3.5 [2 to 4.5]	5 [3 to 5]	9 [5 to 13]	< 0.001
All PE; n = 41	24 (60)	5 (56)	12 (63)	0.93
Whose HELLP; n = 34	19 (47)	4 (44)	11 (58)	0.77
PPH; n = 43	25 (62)	3 (33)	15 (79)	0.064
Volume of bleeding (mL)^a	2,300 [1,600 to 3,000]	1,500 [750 to 4,000]	2,000 [1,500 to 3,000]	NA
PPH only; n = 21	12 (30)	2 (22)	7 (37)	0.72
Hypotension; n = 11	7 (17)	0	4 (21)	0.46
PPH + HELLP; n = 20	11 (27)	1 (11)	8 (42)	0.22
ISTH score >3; n = 29	17 (46)	2 (29)	10 (67)	0.23

Data are N (%) for qualitative variables. Incidence is given in brackets considering missing data. About treatment, the incidence is related to the number of patients who actually received the treatment. ^aQuantitative variables are presented as median [space interquartile range: 25th to 75th percentiles]. NA = not applicable; SAPS: simplified acute physiology score; PE: preeclampsia; HELLP: hemolysis, elevated liver, and low platelet count syndrome; AFLP: acute fatty liver pregnancy; ISTH = International Society on Thrombosis and Hemostasis score.