Table 1.

Patient characteristics of all patients and those with and without AKI

Patient CharacteristicsAll, n=3993AKI, n=1835No AKI, n=2158P Value
Age, yr, median (IQR)64 (56–78)71 (61–81)63 (51–75)<0.001
Sex, n (%)
 Women1704 (43)734 (40)970 (45)0.002
Race/ethnicity, n (%)0.002
 White954 (24)439 (24)515 (24)
 Black1054 (36)536 (29)518 (24)
 Hispanic1038 (26)439 (24)599 (28)
 Asian173 (4)74 (4)99 (5)
 Other or unknown774 (19)347 (19)427 (20)
Comorbidities, n (%)
 Hypertension1527 (38)820 (45)707 (33)<0.001
 Congestive heart failure396 (10)244 (13)152 (7)<0.001
 Diabetes mellitus1019 (26)568 (31)451 (21)<0.001
 Liver disease191 (5)99 (5)92 (4)0.09
 Peripheral vascular disease362 (9)194 (11)168 (8)0.002
 CKD420 (11)339 (18)81 (4)<0.001
Laboratory values, median (IQR)
 White blood cell count, 103/μl7.55 (5.4–10.9)8.68 (6–12.3)6.9 (5.1–9.55)<0.001
 Lymphocyte percentage, %13.1 (8.1–20.6)10.6 (6–12.3)15.5 (9.8–23.1)<0.001
 Hemoglobin, g/dl12.6 (11.1–13.8)12.3 (10.7–13.8)12.8 (11.5–13.9)<0.001
 Platelets, 103/L214 (160–282)207 (151–272)221 (165–291)<0.001
 Sodium, mEq/L139 (136–142)139 (136–143)138 (136–141)<0.001
 Potassium, mEq/L4.2 (3.9–4.6)4.3 (3.9–4.8)4.1 (3.8–4.5)<0.001
 Chloride, mEq/L104 (101–107)104 (100–109)103 (101–106)<0.001
 Bicarbonate, mEq/L23 (20.5–26)22 (19–25)24 (21.8–26.1)<0.001
 BUN, mg/dl18 (12–32)31 (18–51)13 (10–19)<0.001
 Serum creatinine, mg/dl0.94 (0.72–1.41)1.42 (0.95–2.25)0.8 (0.67–0.97)<0.001
 AST, U/L42 (28–68)48 (30–79)39 (27–60)<0.001
 ALT, U/L30 (18–52)29 (18–53)30 (19–52)<0.001
 Alkaline phosphatase, U/L75 (59–100)76 (60–102)73 (58–98)0.005
 Albumin, g/dl2.9 (2.6–3.3)2.8 (2.5–3.2)3 (2.7–3.4)<0.001
Vital signs, median (IQR)
 Temperature, °C36.9 (36.6–37.5)36.9 (36.5–37.4)37(36.6–37.5)<0.001
 Systolic BP, mm Hg124 (111–140)125 (111–141.5)124 (112–138)0.40
 Diastolic BP, mm Hg71 (63–79)70 (61–80)72 (64–79)<0.001
 Heart rate, BPM87 (76–98)87 (76–99)87 (76–97)0.08
 Respiratory rate, per min19 (10–20)20 (18–21)18 (18–20)<0.001
 Oxygen saturation, %96 (94–98)96 (94–98)96 (95–98)<0.001
Discharged, n (%)3869 (97)1750 (95)2119 (98)<0.001
Hospital facility<0.001
 Mount Sinai Hospital located in East Harlem, Manhattan1507 (38)662 (36)845 (39)
 Mount Sinai Morningside located in Morningside Heights, Manhattan699 (18)340 (19)359 (17)
 Mount Sinai West located in Midtown and the West Side, Manhattan480 (12)167 (9)313 (15)
 Mount Sinai Brooklyn located in Midwood, Brooklyn641 (16)345 (19)296 (14)
 Mount Sinai Queens located in Astoria, Queens666 (17)321 (18)345 (16)
  • AST, aspartate transaminase; ALT, alanine transaminase; BPM, beats per minute.