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Table 1 Basic characteristics for all patients

From: Off hour admission to an intensivist-led ICU is not associated with increased mortality

 

All patients

Daytime

Off hours

P

Total patient numbers

6725

4553

2172

 

Male/Female

3937/2788

2676/1877

1261/911

ns

Mean age, years (SD)

65.1 (16.2)

65.9 (15.3)

63.5 (18.0)

<0.001

Mean APACHE II score at admission (SD)

16.8 (8.7)

16.3 (8.8)

17.9 (9.0)

<0.001

Mean SAPS II score at admission (SD)

37.3 (18.4)

35.7 (18.3)

40.6 (18.2)

<0.001

Mean APACHE II score expected mortality

27.7%

25.8%

31.9%

<0.001

Mean SAPS II score excepted mortality

26.9%

24.8%

31.3%

<0.001

Median ICU LOS (IQR)

2 (1 to 4)

2 (1 to 4)

2 (1 to 5)

ns

Median ICU+Hospital LOS (IQR)

11 (6 to 21)

11 (7 to 21)

11 (5 to 21)

ns

Hospital mortality

1236(18.4%)

767 (16.8%)

469 (21.6%)

<0.001

Number of medical patients

3423

2068

1355

 

Mean age, years (SD)

62.3 (17.1)

63.2 (16.4)

61.0 (18.0)

<0.001

Mean APACHE II score (SD)

20.0 (9.5)

20.2 (9.4)

19.7 (9.7)

ns

Hospital mortality

880 (25.7%)

548 (26.5%)

332 (24.5%)

ns

Number of elective surgery patients

2338

1987

351

 

Mean age, years (SD)

68.5 (13.5)

68.2 (13.3)

70.3 (14.9)

0.007

Mean APACHE II score(SD)

12.3 (5.6)

12.0 (15.4)

14.0 (6.2)

0.013

Hospital mortality

186 (8.0%)

133 (6.7%)

53 (15.1%)

<0.001

Number of urgent surgery patients

964

498

466

 

Mean age, years (SD)

66.6 (17.3)

67.5 (16.3)

65.7 (18.3)

ns

Mean APACHE II score (SD)

16.1 (7.0)

16.6 (7.2)

15.5 (6.8)

ns

Hospital mortality

170 (17.6%)

86 (17.3%)

84 (18.0%)

ns

  1. APACHE = acute physiology and chronic health evaluation score; ICU = intensive care unit; IQR = interquartile range; LOS = length of stay; ns = not significant; SAPS = simplified acute physiology score; SD = standard deviation.