Table 1 Nonresponder analysis: comparison of demographics and risk factors between responders and nonresponders

Male

106

115

0.84

Female

90

93

0.84

Sepsis

43

49

0.72

Medical

75

75

0.68

Surgical

101

109

0.92

Neurology

7

9

0.80

Trauma

13

15

0.85

Preexisting conditions

20

31

0.18

Wounds

119

136

0.35

Mean age

61

63

0.76

Mean APACHE II

15

16

0.42

Mean number of ventilator days

2.1

3.4

0.72

Mean number of ILOS

6.2

7.9

0.86

Mean number of HLOS

17.8

20.6

0.96