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Table 1 Association between cumulative mortality within 1 year and patient characteristics in 326 episodes of infective endocarditis

From: Short-term and one-year outcome of infective endocarditis in adult patients treated in a Finnish teaching hospital during 1980–2004

 

Mortality during n (%)

 

N

In-hospitala

p value

3 months

p value

6 months

p value

1 year

p value

Sex

  

0.423

 

0.261

 

0.328

 

0.707

   Male

234

35 (15.0)

 

34 (14.7)

 

38 (16.5)

 

39 (17.0)

 

   Female

92

11 (12.0)

 

9 (9.9)

 

11 (12.1)

 

14 (15.7)

 

Age

  

0.065

 

0.022

 

0.013

 

0.004

   18–64 years

209

23 (11.0)

 

21 (10.2)

 

24 (11.6)

 

25 (12.1)

 

   ≥65 years

117

23 (19.7)

 

22 (19.0)

 

25 (21.8)

 

28 (24.9)

 

Etiology

  

0.031b

 

0.004b

 

0.012b

 

0.036b

   Staphylococcus aureus

75

14 (18.7)

 

14 (18.9)

 

15 (20.3)

 

15 (20.3)

 

   CoNSc

31

6 (19.4)

 

6 (19.4)

 

6 (19.4)

 

6 (19.4)

 

   Viridans streptococci

67

10 (14.9)

 

8 (12.0)

 

11 (16.8)

 

12 (18.4)

 

   Enterococcus faecalis

25

2 (8.0)

 

2 (8.0)

 

2 (8.0)

 

3 (12.8)

 

   Streptococcus pneumoniae

11

5 (45.5)

 

5 (45.5)

 

5 (45.5)

 

5 (45.5)

 

   Other

28

2 (7.1)

 

1 (3.6)

 

2 (7.3)

 

2 (7.3)

 

   Negative

89

7 (7.9)

 

7 (8.1)

 

8 (9.2)

 

10.(11.6)

 

Affected valves

  

<0.001b

 

<0.001b

 

<0.001b

 

<0.001b

   Aortic

113

16 (14.2)

 

15 (13.4)

 

16 (14.4)

 

17 (15.4)

 

   Mitral

96

6 (6.3)

 

7 (7.3)

 

8 (8.4)

 

9 (9.5)

 

   Tricuspid

18

2 (11.1)

 

1 (5.9)

 

2 (11.8)

 

2 (11.8)

 

   Two native valves

32

14 (43.8)

 

13 (40.6)

 

14 (43.8)

 

15 (46.9)

 

   Prosthetic valve(s)

67

8 (11.9)

 

7 (10.6)

 

9 (13.7)

 

10 (15.3)

 

Echocardiography

         

   Major criterion

  

0.343

 

0.090

 

0.028

 

0.012

Yes

221

37 (16.7)

 

34 (15.6)

 

40 (18.4)

 

44 (20.4)

 

No

105

9 (8.6)

 

9 (8.7)

 

9 (8.7)

 

9 (8.7)

 

   Vegetation

  

0.097

 

0.047

 

0.010

 

0.003

Yes

198

36 (18.2)

 

32 (16.3)

 

38 (19.5)

 

42 (21.7)

 

No

128

10 (7.8)

 

11 (8.7)

 

11 (8.7)

 

11 (8.7)

 

Neurological events d

  

0.009

 

0.003

 

0.003

 

0.005

Yes

86

21 (24.4)

 

19 (22.5)

 

21 (24.9)

 

22 (26.1)

 

No

240

25 (10.4)

 

24 (10.1)

 

28 (11.8)

 

31 (13.2)

 

Peripheral emboli d

  

0.032

 

0.073

 

0.016

 

0.022

Yes

102

22 (22.0)

 

18 (18.3)

 

22 (22.6)

 

23 (23.7)

 

No

224

24 (10.6)

 

25 (11.1)

 

27 (12.1)

 

30 (13.5)

 

Heart failure d

  

<0.001

 

<0.001

 

<0.001

 

<0.001

Yes

178

41 (23.0)

 

38 (21.8)

 

44 (25.5)

 

47 (27.5)

 

No

148

5 (3.4)

 

5 (3.4)

 

5 (3.4)

 

6 (4.1)

 

In-hospital surgery

  

0.751

 

0.614

 

0.551

 

0.552

Yes

89

15 (16.9)

 

13 (14.7)

 

15 (17.0)

 

16 (18.2)

 

No

237

31 (13.1)

 

30 (12.8)

 

34 (14.6)

 

37 (16.0)

 

CRP on admission e

  

0.005

 

<0.001

 

<0.001

 

<0.001

   ≥100 mg/l

148

28 (18.9)

 

29 (19.7)

 

31 (21.1)

 

34 (23.3)

 

   < 100 mg/l

124

8 (6.5)

 

5 (4.1)

 

8 (6.6)

 

8 (6.6)

 

Creatinine on admission f

  

0.075

 

0.017

 

0.052

 

0.160

   ≥100 μmol/l

108

28 (18.9)

 

19 (17.7)

 

19 (17.7)

 

19 (17.7)

 

   < 100 μmol/l

174

17 (9.8)

 

15 (8.7)

 

18 (10.4)

 

22 (12.8)

 
  1. aMean (SD) duration of in-hospital treatment was 55 (33), range 4 to 272 days; bp values for overall group differences; ccoagulase-negative staphylococci; dwithin 3 months from admission; edata available for 272 episodes; fdata available for 282 episodes