Table 1.

Patient characteristics stratified by acute dialysis treatment and death at hospital day 7

FeatureNo Dialysis or DeathDialysis or DeathMissing (%)a
MSH (n=2244)OH (n=3183)MSH (n=198)OH (n=468)
Age (yr), median (IQR)62 (47–72)68 (55–79)70 (59–79)78 (67–86)0
Male, n (%)1279 (57)1739 (54)135 (62)292 (61)0
Race, n (%)
 Asian91 (4)167 (5)5 (2)26 (5)0
 Black418 (19)928 (29)72 (33)126 (26)0
 Not sure1 (0)1 (0)0 (0)0 (0)0
 Other882 (39)1163 (37)79 (36)167 (35)0
 Pacific Islander10 (1)3 (0)0 (0)0 (0)0
 Unknown118 (5)82 (3)10 (5)15 (3)0
 White719 (32)823 (26)51 (23)146 (30)0
Comorbidities, n (%)
 Asthma195 (9)174 (6)14 (7)24 (5)0
 Atrial fibrillation169 (8)196 (6)26 (13)42 (9)0
 COPD109 (5)145 (5)15 (8)27 (6)0
 Cancer272 (12)199 (6)31 (16)24 (5)0
 Chronic viral hepatitis63 (3)40 (1)7 (4)7 (2)0
 Coronary artery disease300 (13)410 (13)43 (22)82 (18)0
 Diabetes493 (22)568 (18)65 (33)86 (18)0
 HIV37 (2)49 (2)5 (3)3 (1)0
 Hypertension763 (34)819 (26)97 (49)116 (25)0
 Heart failure199 (9)266 (8)34 (17)65 (14)0
 Obesity320 (14)246 (8)43 (22)31 (7)0
 Obstructive sleep apnea159 (7)75 (2)18 (9)14 (3)0
 CKD81 (4)123 (4)38 (17)28 (6)0
Admission laboratory values, median (IQR)
 Anion gap (mEq/L)11 (10–13)12 (10–14)14 (12–17)14 (12–17)3
 Albumin (g/dl)3.0 (2.6–3.4)3.0 (2.6–3.4)2.7 (2.3–3.0)2.7 (2.4–3.05)9
 Alkaline phosphatase (U/L)75 (59–101)73 (58–98)81 (61–112)81 (62–109)9
 Alanine transaminase (U/L)29 (18–50)29 (18–52)29 (16–53)35 (22–66)9
 Aspartate transaminase (U/L)37 (26–60)39 (26–63)48 (28–87)64 (42–111)9
 Basophil (%)0.2 (0.1–0.4)0.3 (0.1–0.5)0.2 (0.1–0.3)0.2 (0.1–0.3)13
 Bicarbonate (mEq/L)24 (22–27)23 (20–25)23 (19–26)21 (17–24)3
 BUN (mg/dl)16 (11–25)17 (12–28)44 (27–70)40 (22–65)3
 Calcium (mEq/L)8.4 (8.0–8.8)8.2 (7.8–8.6)8.2 (7.8–8.6)7.9 (7.5–8.4)3
 Chloride (mEq/L)103 (100–106)104 (101–107)103 (98–108)106 (101–112)3
 Serum creatinine (mg/dl)0.9 (0.7–1.1)0.9 (0.7–1.3)2.8 (1.4–5.8)1.7 (1.1–2.9)3
 C-reactive protein (mg/L)95 (41–174)96 (42–186)167 (96–253)201 (121–280)20
 Eosinophil (%)0.3 (0.1–1.0)0.3 (0.2–0.9)0.3 (0.1–0.7)0.2 (0.1–0.4)13
 Blood glucose (mg/dl)114 (96–156)114 (91–160)137 (104–187)144 (108–211)3
 Hematocrit (%)38.4 (34.1–42.4)38.9 (34.6–42.5)35.0 (29.0–39.65)38.5 (33.8–43.5)2
 Hemoglobin (g/dl)12.5 (11.1–13.7)12.6 (11.2–13.8)11.1 (9.48–12.92)12.35 (10.8–13.9)2
 Lymphocyte (n)0.9 (0.6–1.3)1.0 (0.7–1.5)0.7 (0.5–1.0)0.9 (0.6–1.2)9
 Lymphocyte (%)14.0 (8.4–21.0)14.5 (8.9–22.3)9.0 (5.0–16.3)8.7 (5.3–14.0)7
 Mean corpuscular hemoglobin concentration (g/dl)29 (28–31)30 (28–31)29 (27–31)30 (28–32)2
 Mean corpuscular volume (fL)89 (85–92)92 (88–95)89 (85–94)94 (89–98)3
 Monocyte (n)0.4 (0.3–0.6)0.5 (0.3–0.7)0.4 (0.2–0.6)0.4 (0.3–0.7)9
 Monocyte (%)6.4 (4.1–9.2)6.75 (4.5–9.4)4.6 (2.9–7.3)4.4 (3.0–6.5)6
 Mean platelet volume (fl)9.2 (8.1–10.4)8.4 (7.6–9.4)9.1 (8.2–10.0)8.9 (8.0–9.8)3
 Neutrophil (n)5.2 (3.3–7.97)5.6 (3.8–8.8)6.7 (4.0–11.4)9.1 (5.9–13.3)6
 White blood cell count (103 μl)6.8 (4.8–9.8)7.3 (5.4–10.3)8.0 (5.4–12.4)10.4 (7.0–14.4)2
Admission vitals, median (IQR)
 Oxygen saturation (%)92 (90–95)93 (90–95)89 (83–93)90 (81–93)0
 FiO221 (21–21)21 (21–21)21 (21–50)21 (21–21)0
 Pulse rate86 (76–96)85 (75–96)88 (76–100)91 (78–107)0
 Respiratory rate19 (18–20)18 (18–20)20 (18–22)19 (18–21)0
 Temperature (°F)98.6 (97.8–99.7)98.2 (97.5–98.9)98.6 (97.5–99.9)98.1 (97.5–99.0)0
 Diastolic BP (mm Hg)70 (63–79)73 (66–81)70 (60–77)70 (61–80)0
 Systolic BP (mm Hg)126 (114–140)128 (114–143)132 (114–150)124 (106–143)0
Hospitalization events, n (%)
 Vasopressors249 (11)258 (8)62 (28)155 (32)0
 Intubation151 (7)181 (6)31 (14)38 (8)0
 Intensive care unit246 (11)239 (8)57 (26)80 (17)0
  • MSH, Mount Sinai Hospital; OH, other hospitals; IQR, interquartile range; COPD, chronic obstructive pulmonary disease; FiO2, fraction of inspired oxygen.

  • a Proportion with missing value from entire cohort.