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Table 2 Outcomes in smokers, former smokers, and never smokers with severe sepsis or septic shock

From: The impact of smoking on patient outcomes in severe sepsis and septic shock

Outcomes

Current smokers (N = 107)

Non-smokers (N = 455)

P value*

Former smokers (N = 249)

P value**

Never smokers (N = 206)

P value§

Mortalityn (%)

34 (32)

101 (22)

0.04

60 (24)

0.13

41 (20)

0.02

Hospital LOS—median days (IQR)

7 (4–17)

7 (4–12)

0.19

7 (4–12)

0.26

7 (4–12)

0.20

Hospital LOS in survivors

8 (4–18)

(N = 73)

7 (4–12)

(N = 354)

0.03

7 (4–12)

(N = 189)

0.05

7 (4–11)

(N = 165)

0.05

ICU LOS

5 (3–10)

(N = 75)

4 (2–11)

(N = 243)

0.36

5 (2–11)

(N = 135)

0.67

4 (2–10)

(N = 108)

0.20

ICU LOS survivors

6 (3–11)

(N = 47)

4 (2–10)

(N = 162)

0.06

4 (2–10)

(N = 84)

0.10

4 (2–10)

(N = 78)

0.07

Required ICU admission—n (%)

75 (70)

243 (53)

< 0.01

135 (54)

< 0.01

108 (52)

< 0.01

Required vasopressors—n (%)

57 (53)

175 (39)

< 0.01

104 (42)

0.05

71 (34)

< 0.01

Vasopressor days—median (IQR)

3 (2–4)

(N = 57)

3 (2–5)

(N = 175)

0.97

3 (2–5.5)

(N = 104)

0.72

3 (2–5)

(N = 71)

0.68

Required mechanical ventilation—n (%)

62 (58)

133 (29)

< 0.01

77 (31)

< 0.01

56 (27)

< 0.01

Ventilator days

5 (2–9)

(N = 62)

5 (2–9)

(N = 133)

0.99

6 (2–11)

(N = 77)

0.42

4 (2–8)

(N = 56)

0.32

Required dialysis—n (%)

10 (9)

42 (9)

0.97

27 (11)

0.67

15 (7)

0.52

Dialysis days

4 (2–6)

(N = 10)

4 (2–9)

(N = 42)

0.58

6 (3–13)

(N = 27)

0.30

3 (2–6)

(N = 15)

0.74

  1. LOS length of stay, ICU intensive care unit
  2. *P value refers to comparison between current smokers and non-smokers
  3. **P value refers to comparison between current smokers and former smokers
  4. §P value refers to comparison between current smokers and never smokers
  5. Includes death or discharge to hospice