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Table 1 Demographics, comorbidities, laboratory events and vital signs of patients with stroke

From: A novel nomogram to predict mortality in patients with stroke: a survival analysis based on the MIMIC-III clinical database

Variables

Classification

Patients

P

Training set (%)

Validation set (%)

Total

767

536

231

 

Age

70 (58–80)

70 (58–80)

69 (59–80)

0.807

Weight

80.07 ± 21.92

79.66 ± 21.82

81.03 ± 22.13

0.430

Sex

Male

281 (52.43)

121 (52.38)

0.991

 

Female

255 (47.57)

110 (47.62)

 

Ethnicity

White

391 (72.95)

170 (73.59)

0.084

 

Black

41 (7.65)

27 (11.69)

 
 

Other

104 (19.40)

34 (14.72)

 

Admission type

Emergency

494 (92.16)

218 (94.37)

0.198

 

Elective

30 (5.60)

12 (5.19)

 
 

Urgent

12 (2.24)

1 (0.43)

 

Insurance

Medicare

335 (62.5)

145 (62.77)

0.806

 

Private

155 (28.92)

61 (26.41)

 
 

Medicaid

31 (5.78)

16 (6.93)

 
 

Government

10 (1.87)

6 (2.60)

 
 

Self-pay

5 (0, 93)

3 (1.30)

 

Marital status

Married

272 (50, 75)

109 (47.19)

0.292

 

Unmarried

122 (22.76)

48 (20.78)

 
 

Other

142 (26.49)

74 (32.03)

 

Ventilation

Yes

254 (47.39)

118 (51.08)

0.348

 

No

282 (52.61)

113 (48.92)

 

Explicit sepsis

Yes

38 (7.09)

19 (8.23)

0.582

 

No

498 (92.91)

212 (91.77)

 

Comorbitities

Cardiac arrhythmias

274 (51.12)

117 (50.65)

0.905

 

CHF

142 (26.49)

61 (26.41)

0.728

 

Hypertension

347 (64.74)

163 (70.56)

0.017

 

Diabetes- complicated

24 (4.48)

12 (5.19)

0.667

 

Diabetes- uncomplicated

149 (26.12)

62 (26.84)

0.835

 

Coagulopathy

48 (8.96)

25 (10.82)

0.309

 

Metastatic cancer

21 (3.92)

6 (2.60)

0.424

Scoring systems

OASIS

33 (27–39)

34 (27–39.5)

0.394

 

GCS

14 (11–15)

14 (11–15)

0.430

Laboratory events

AG

15.17 ± 3.40

15.32 ± 3.61

0.571

 

Bicarbonate

24.69 ± 3.83

24.42 ± 3.73

0.360

 

Chloride

103.67 ± 5.48

103.45 ± 4.92

0.614

 

Total Calcium

8.73 ± 0.81

8.69 ± 0.84

0.528

 

Creatinine

1.31 ± 1.25

1.48 ± 2.94

0.264

 

Glucose

146.63 ± 68.76

144.23 ± 58.18

0.642

 

Potassium

4.23 ± 0.78

4.26 ± 0.85

0.630

 

Sodium

139.25 ± 4.31

138.84 ± 3.79

0.216

 

HB

12.55 ± 2.32

12.78 ± 2.16

0.197

 

WBC

11.68 ± 10.11

11.07 ± 4.99

0.382

 

RBC

4.18 ± 0.77

4.27 ± 0.73

0.108

 

PLT

247.95 ± 105.34

248.67 ± 91.22

0.928

 

PT

14.82 ± 7.60

14.81 ± 7.17

0.984

 

INR

1.39 ± 1.24

1.37 ± 0.97

0.835

Vital signs

HR

81.44 ± 15.76

81.52 ± 14.18

0.946

 

RR

19.13 ± 3.83

19.00 ± 3.82

0.684

 

DBP

64.40 ± 11.49

65.92 ± 12.51

0.102

 

SBP

131.29 ± 19.54

131.93 ± 19.53

0.677

 

MBP

84.16 ± 11.84

84.93 ± 13.01

0.428

 

SpO2

97.60 ± 1.82

97.58 ± 1.63

0.851

  1. CHF, congestive heart failure; OASIS, Oxford Acute Severity of Illness Score; GCS, Glasgow Coma Scale; AG, anion gap; HB, hemoglobin; WBC, white blood cell; RBC, red blood cell; PLT, platelet; PT, prothrombin time; INR, international normal ratio; HR, heart rate; RR, respiratory rate; DBP, diastolic blood pressure; SBP, systolic blood pressure; MBP, mean blood pressure; SPO2, percutaneous oxygen saturation