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Table 1 Baseline and disease characteristics in patients with and without QTP

From: Characteristics, predictors and outcomes of new-onset QT prolongation in sepsis: a multicenter retrospective study

 

Non-QTP (n = 789)

QTPa (n = 235)

P value

Patient characteristics

Age, years

59.9 ± 16.2

63.6 ± 15.3

0.002

Sex, female, %

251 (31.8)

81 (34.5)

0.445

Body mass index (kg/m2)

23.25 ± 3.55

22.97 ± 3.46

0.292

Body surface area (m2)

1.73 ± 0.17

1.69 ± 0.19

0.013

Baseline comorbidities

Hypertension, %

215 (27.25)

80 (34.04)

0.044

Diabetes mellitus, %

170 (21.55)

53 (22.55)

0.743

Coronary artery disease, %

44 (5.58)

37 (15.74)

< 0.001

Structural heart disease, %

38 (4.82)

30 (12.77)

 < 0.001

Congenital heart disease, %

12 (1.52)

2 (0.85)

0.438

Renal insufficiency, %

35 (4.44)

23 (9.79)

0.002

COPDb, %

35 (4.44)

35 (14.89)

 < 0.001

Liver cirrhosis, %

23 (2.92)

10 (4.26)

0.307

Charlson score

1 [0, 2]

2 [1, 3]

 < 0.001

Recentc surgery, %

129 (16.35)

42 (17.87)

0.583

Recentc chemo/immunotherapy, %

59 (7.48)

11 (4.68)

0.136

Clinical characteristics

Severe sepsis/shock, %

159 (20.15)

110 (46.80)

 < 0.001

qSOFAd score

1 [1, 2]

2 [1, 2]

 < 0.001

SOFAe score

3 [2, 6]

6 [3, 8]

< 0.001

Acute heart failure, %

68 (8.62)

70 (29.79)

 < 0.001

Acute renal failure, %

127 (16.10)

95 (40.43)

 < 0.001

Acute respiratory failure, %

124 (15.72)

114 (48.51)

 < 0.001

Acute liver failure, %

47 (5.96)

26 (11.06)

0.008

Laboratory results

White blood cell count, *109/L

10.38 ± 8.70

13.20 ± 18.57

0.001

Neutrophil, %

75.37 ± 16.42

82.21 ± 31.64

 < 0.001

Hemoglobin, g/L

106.84 ± 24.93

107.12 ± 27.22

0.880

C-reactive protein, mg/L

75.33 ± 72.59

92.14 ± 78.56

0.018

Procalcitonin, ng/mL

10.39 ± 42.88

12.39 ± 23.50

0.493

Lactate level

2.84 ± 2.33

4.03 ± 3.12

 < 0.001

Pro-BNP, pg/mL

585.2 [159.4, 2520.0]

1383.7 [458.4, 4945.0]

 < 0.001

Troponin T, ng/mL

0.136 ± 0.823

0.141 ± 0.758

0.958

Creatinine, μmoI/L

107.75 ± 130.77

168.43 ± 210.62

 < 0.001

Bilirubin, mmol/L

22.24 ± 50.94

27.70 ± 56.72

0.161

Alanine transaminase, U/L

58.70 ± 191.20

83.94 ± 305.19

0.127

Albumin, g/L

33.74 ± 6.61

32.72 ± 6.45

0.038

Serum potassium, mmol/L

3.86 ± 0.57

3.89 ± 0.72

0.457

Serum calcium, mmol/L

2.312 ± 0.19

2.12 ± 0.20

0.964

Etiology

Positive blood culture

353 (44.74)

84 (35.74)

0.014

Gram-positive bacteria, %

139 (39.38)

23 (27.38)

0.041

Gram-negative bacteria, %

200 (56.66)

58 (69.05)

0.038

Non-bacteria, %

20 (5.67)

8 (9.52)

0.194

Portal of entry of the infection

Lungs

306 (38.78)

122 (51.91)

0.001

Abdominal

178 (22.56)

58 (24.68)

0.498

Cardiovascular

52 (6.59)

13 (5.53)

0.559

Central nervous system

71 (9.00)

17 (7.23)

0.314

Urinary

157 (19.90)

42 (17.87)

0.491

Catheter-related

33 (4.18)

10 (4.26)

0.961

Others

87 (11.03)

25 (10.64)

0.867

Unknown

79 (10.01)

15 (6.38)

0.091

Treatment

Antibiotic use

788 (99.87)

233 (99.15)

0.361

Vasoactive drugs

189 (23.95)

101 (42.98)

 < 0.001

Mechanical ventilation

235 (29.78)

119 (50.64)

 < 0.001

Tracheal intubation

139 (17.62)

89 (37.87)

 < 0.001

Fluids infused

206 (26.11)

117 (49.79)

< 0.001

Outcome

In-hospital mortality, %

118 (14.96)

77 (32.77)

< 0.001

Length of hospital stay, days

12.0 [7.0, 19.6]

11.4 [6.6, 19.0]

0.322

30-day mortality, %

98 (12.42)

67 (28.51)

 < 0.001

  1. aQTP = QT prolongation
  2. bCOPD = chronic obstructive pulmonary disease
  3. cWithin 30 days
  4. dqSOFA = quick sequential organ failure assessment
  5. eSOFA = sequential organ failure assessment