Table 1 Baseline characteristics of study patients stratified by survival outcome.

From: Development and validation of a prognostic nomogram for Takotsubo syndrome patients in the intensive care units: a retrospective cohort study

Characteristic

Total (n = 368)

Survival (n = 320)

Death (n = 48)

P value

Age (years old)

66.29 ± 16.09

65.42 ± 16.31

72.09 ± 13.30

0.007

Man

85 (23.10%)

69 (21.56%)

16 (33.33%)

0.105

SBP (mmHg)

112.00 ± 15.25

112.43 ± 15.40

109.60 ± 18.36

0.170

DBP (mmHg)

65.70 ± 10.64

62.72 ± 10.86

60.91 ± 12.60

0.913

MBP (mmHg)

78.65 ± 10.43

78.88 ± 10.69

74.80 ± 12.85

0.284

Heart rate (beats/minute)

91.40 ± 17.08

90.40 ± 16.71

89.48 ± 19.66

0.147

Respiratory rate (beats/minute)

21.03 ± 4.12

20.98 ± 4.11

22.06 ± 4.63

0.549

Temperature (°C)

36.89 ± 0.48

36.89 ± 0.48

36.27 ± 1.21

0.518

SPO2 (%)

96.95 ± 2.35

96.89 ± 2.43

94.95 ± 7.49

0.231

Comorbidities, n (%)

Diabetes

89 (24.18%)

77 (24.06%)

12 (25.00%)

1.000

Hypertension

157 (42.66%)

141 (44.06%)

16 (33.33%)

0.213

myocardial infarction

111 (30.16%)

102 (31.88%)

9 (18.75%)

0.093

congestive heart failure

212 (57.61%)

187 (58.44%)

25 (52.08%)

0.500

Chronic pulmonary disease

99 (26.90%)

82 (25.63%)

17 (35.42%)

0.211

Malignant cancer

55 (14.95%)

47 (14.69%)

8 (16.67%)

0.887

Renal disease

58 (15.76%)

51 (15.94%)

7 (14.58%)

0.978

Laboratory parameters

Anion gap (mEq/L)

17.63 ± 5.41

15.64 ± 4.02

17.53 ± 4.69

0.003

BUN (mg/dL)

33.83 ± 24.64

23.84 ± 18.59

26.35 ± 13.70

0.369

Bicarbonate (mmol/L)

20.80 ± 5.18

22.11 ± 4.52

20.83 ± 5.18

0.075

Creatinine (mg/dL)

1.96 ± 1.98

1.24 ± 1.35

1.16 ± 0.72

0.697

Chloride (mmol/L)

103.83 ± 6.66

103.64 ± 6.48

101.78 ± 7.77

0.072

Glucose (mg/dL)

188.89 ± 94.74

171.85 ± 70.62

203.25 ± 109.05

0.706

Calcium

8.36 ± 1.19

8.22 ± 0.80

8.06 ± 0.89

0.198

Hematocrit (%)

32.70 ± 6.37

33.03 ± 6.29

30.54 ± 6.49

0.011

Hemoglobin (g/dL)

10.69 ± 2.15

10.79 ± 2.13

9.98 ± 2.19

0.015

WBC (109/L)

13.83 ± 7.74

13.46 ± 7.72

16.27 ± 7.45

0.019

Platelet (109/L)

240.37 ± 139.90

239.79 ± 138.51

244.25 ± 150.35

0.837

Potassium (mmol/L)

4.20 ± 0.63

4.17 ± 0.63

4.35 ± 0.61

0.067

PT

15.91 ± 8.13

15.41 ± 6.94

19.22 ± 13.25

0.002

Sodium (mmol/L)

138.19 ± 5.25

138.31 ± 5.03

137.40 ± 6.52

0.259

Renal replacement therapy, n (%)

18 (4.89%)

15 (4.69%)

3 (6.25%)

0.913

norepinephrine, n (%)

147 (39.95%)

126 (39.38%)

21 (43.75%)

0.675

Scoring systems

SOFA

5.98 ± 4.00

5.78 ± 3.87

7.27 ± 4.64

0.016

ICU LOS, days

5.82 ± 6.75

5.85 ± 9.19

5.56 ± 6,17

0.782

HOS LOS (days)

17.75 ± 17.91

18.51 ± 18.34

14.20 ± 14.30

0.120

  1. SBP: systolic blood pressure; DBP: diastolic blood pressure; MBP: mean blood pressure; SPO2: pulse oximetry derived oxygen saturation; BUN: blood urea nitrogen; PT: prothrombin time; WBC: white blood cell; SOFA: sequential organ failure assessment; ICU: intensive care unit; HOS: hospital; LOS: length of stay.
  2. Significant values are in bold.
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