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Table 5 Univariable and multivariable analysis of the risk of prolonged ICU stay and in-hospital mortality after development of a new significant ventricular, supraventricular arrhythmia, and premature complexes

From: Risk factors and clinical outcomes of arrhythmias in the medical intensive care unit

 

Prolonged ICU staya,b

Mortality

Univariable

Multivariablec

Univariable

Multivariablec

 

n (%)

RR (95 % CI)

p value

RR (95 % CI)

p value

RR (95 % CI)

p value

RR (95 % CI)

p value

Sex

 

 Female

87 (40.5)

Ref

   

Ref

   

 Male

128 (59.5)

1.02 (0.76-1.37)

0.897

0.87 (0.56–1.36)

0.542

Age

 

 21–50

66 (30.7)

Ref

   

Ref

 

Ref

 

 51–70

79 (36.7)

1.67 (1.13–2.48)

0.011

1.60 (1.09–2.36)

0.017

1.67 (0.84–3.32)

0.143

1.32 (0.68–2.55)

0.411

 >71

70 (32.6)

1.46 (0.96–2.21)

0.078

1.34 (0.87–2.05)

0.185

2.55 (1.34–4.85)

0.004

1.76 (0.91–3.38)

0.092

Mediators

 

 0–2

84 (39.1)

Ref

 

Ref

 

Ref

 

Ref

 

 3–4

92 (42.8)

1.44 (1.03–2.03)

0.034

1.35 (0.97–1.89)

0.075

4.30 (2.01–9.22)

<0.001

3.98 (1.89–8.37)

<0.001

 ≥5

39 (18.1)

1.39 (0.92–2.11)

0.121

1.17 (0.76–1.80)

0.480

5.23 (2.36–11.59)

<0.001

4.12 (1.80–9.43)

0.001

Arrhythmias

 

 SVA

38 (17.7)b

44 (20.5)

1.55 (1.17–2.07)

0.003

1.47 (1.09–1.97)

0.011

1.94 (1.25–3.02)

0.003

1.38 (0.89–2.15)

0.146

 VA

16 (7.4)b

27 (12.6)

0.94 (0.53–1.67)

0.822

2.06 (1.29–3.29)

0.003

1.93 (1.18–3.15)

0.008

 PC

59 (27.4)b

82 (38.1)

0.83 (0.59–1.18)

0.310

1.36 (0.87–2.12)

0.174

0.94 (0.61–1.45)

0.789

  1. SVA supraventricular arrhythmias, VA ventricular arrhythmias, PC premature complexes
  2. aICU stay of more than 5 days
  3. bArrhythmias considered for this analysis occurred during the first 3 days at ICU
  4. cFactors included in the model had p < 0.20 in univariable analyses