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Table 1 Comparison of variables between Intensive care patients with cancer and without cancer before and after propensity score matched analysis

From: The effect of the underlying malignancy on short- and medium-term survival of critically ill patients admitted to the intensive care unit: a retrospective analysis based on propensity score matching

Variable

ALL

Patients before PSM

Patients after PSM

N = 38,508

Noncancer(N = 30,200)

Cancer

(N = 8308)

P Value

SDD

Noncancer

N = 7474

Cancer

N = 7474

P Value

SDD

Age, median (IQR), Y

65 (52–77)

63 (50–77)

70 (60–79)

< 0.001

44.2

72 (59–81)

69 (59–79)

1.000

−3.3

Sex, No. (%)

   

0.545

0.8

  

0.921

0

 Female

16,715 (43.4)

13,133 (43.5)

3582 (43.1)

3276 (43.8)

3282 (43.9)

 Male

21,783 (56.6)

17,067 (56.5)

4726 (56.8)

4198 (56.2)

4192 (56.1)

Ethnicity, No. (%)

   

< 0.001

11.1

  

0.829

1.6

 Black

2949 (7.7)

2404 (8.0)

545 (6.6)

531 (7.1)

505 (6.8)

 Asian

911 (2.4)

667 (2.2)

244 (2.9)

195 (2.6)

207 (2.8)

 White

27,468 (71.3)

21,035 (69.7)

6433 (77.4)

5749 (76.9)

5735 (76.7)

 Hispanic

1254 (3.3)

1095 (3.6)

159 (1.9)

154 (2.1)

154 (2.1)

 Other

5926 (15.4)

4999 (16.6)

927 (11.2)

845 (11.3)

873 (11.7)

ICU type, No. (%)

   

< 0.001

27.7

  

0.717

1.7

 SICU

6366 (16.5)

4578 (15.2)

1788 (21.5)

1528 (20.4)

1499 (20.1)

 MICU

13,634 (35.4)

10,148 (33.6)

3486 (42.0)

3090 (41.3)

3064 (41.0)

 CCU

5673 (14.7)

4728 (16.7)

945 (11.4)

906 (12.1)

920 (12.3)

 CSRU

7606 (19.8)

6378 (21.1)

1228 (14.8)

1215 (16.3)

1207 (16.2)

 TSICU

5229 (13.6)

4368 (14.5)

861 (10.4)

735 (9.8)

784 (10.5)

Admission group, No. (%)

   

< 0.001

−20.2

  

0.764

−0.4

 Elective

6090 (15.8)

4267 (14.1)

1823 (21.9)

1465 (19.6)

1467 (19.6)

 Emergency

32,418 (84.2)

25,993 (85.9)

6485 (78.1)

6009 (80.4)

6007 (80.4)

Admission reasons, No. (%)

   

< 0.001

−7.0

  

0.860

1.4

 Cardiovascular

17,528 (45.5)

13,726 (45.5)

3802 (45.8)

3419 (45.8)

3416 (45.7)

 Liver

1312 (3.4)

903 (3.0)

409 (4.9)

330 (4.4)

328 (4.4)

 Mental

4118 (10.7)

3300 (10.9)

818 (9.9)

783 (10.5)

771 (10.3)

 Renal

4753 (12.3)

3686 (12.2)

1067 (12.8)

1011 (13.6)

970 (13.0)

 Respiratory

6905 (18.0)

5478 (18.2)

1427 (17.2)

1239 (16.6)

1288 (17.2)

 Coagulation

1671 (4.3)

1257 (4.2)

414 (5.0)

366 (4.9)

356 (4.8)

 

 Other

2221 (5.8)

1850 (6.1)

371 (4.5)

326 (4.4)

345 (4.6)

SOFA, median (IQR)

3 (2–5)

3 (2–5)

3 (2–5)

0.001

2.5

3 (2–6)

3 (2–6)

0.622

−0.9

SAPS II, median (IQR)

24 (33–92)

31 (23–41)

39 (26–46)

< 0.001

36.6

36 (28–46)

36 (28–44)

0.490

−1.4

APS III, median (IQR)

38 (25–51)

37 (27–51)

40 (30–53)

< 0.001

11.4

40 (29–54)

39 (30–52)

0.462

−2.0

LODS, median (IQR)

3 (2–5)

3 (2–5)

3 (2–5)

< 0.001

5.7

4 (2–5)

3 (2–5)

1.00

−0.5

OASIS, median (IQR)

30 (25–37)

30 (25–37)

30 (25–37)

0.293

1.2

31 (25–37)

31 (25–37)

0.09

−1.4

Elixhause comorbidity, median (IQR)

4 (0–12)

3 (0–9)

9 (2–17)

< 0.001

56.0

9 (0–16)

8 (0–15)

0.933

−0.4

RRT on first day, No. (%)

1036 (2.7)

889 (2.9)

147 (1.8)

< 0.001

−7.7

154 (2.1)

145 (1.9)

0.599

−0.7

MV on first day, No. (%)

17,613 (45.7)

14,262 (47.2)

3351 (40.3)

< 0.001

−13.9

3051 (40.8)

3084 (41.3)

0.583

1.1

Vasopressor administration on first day, No. (%)

11,354 (29.5)

9114 (30.2)

2240 (27.0)

< 0.001

−7.1

2094 (28.0)

2076 (27.8)

0.743

−1.1

Sepsis, No. (%)

2601 (6.8)

1951 (6.5)

650 (7.8)

< 0.001

5.3

603 (8.1)

783 (7.8)

0.545

−1.4

Infection, No. (%)

15,192 (39.5)

11,641 (38.6)

3551 (42.7)

< 0.001

8.5

3164 (42.3)

2196 (42.8)

0.597

1.1

  1. Abbreviations: ICU Intensive care unit; SDD The standardized differences; PSM Propensity score matching; IQR 25–75% Interquartile range; SOFA Sequential Organ Failure Assessment; SAPSII Simplified Acute Physiology Score II; LODS Logistic Organ Dysfunction Score; OASIS Oxford Acute Severity of Illness Score; APSIII Acute Physiology Score; SICU Surgical intensive care unit; MICU Medical intensive care unit; CCU Coronary care unit; CSRU Cardiac surgery recovery unit; TSICU Traumatic surgical intensive care unit; MV Mechanical ventilation; RRT Renal replacement therapy