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Table 2 Comparison of characteristics between respondents and non-respondents

From: Quality of life after stay in surgical intensive care unit

Variable

Respondents (n = 226)

Non-respondents (n = 69)

p value

Age in years, median (P25–75)

65(55–72)

65(52–75)

0.062b

Age group, n (%)

   

   ≥ 65 years

112(50)

34(49)

 

   < 65 years

114(50)

35(51)

 

Sex, n (%)

  

0.183a

   Male

145 (64)

49 (71)

 

   Female

81(36)

20 (29)

 

Body Mass Index in Kg/m2, median (P25–P75)

24.8 (22.6–28.1)

25.7 (23.0–27.8)

0.461b

ASA physical status, n (%)

  

0.894a

   I

14 (6)

6 (9)

 

   II

90 (40)

26(38)

 

   III

107 (47)

33 (48)

 

   IV

15 (7)

4(6)

 

Type of surgery, n (%)

  

0.459a

   Emergent

33 (15)

9(13)

 

   Scheduled

193 (85)

60 (87)

 

Magnitude of surgery, n (%)

  

0.178a

   Minor

18 (8)

8 (12)

 

   Medium

96 (42)

21(30)

 

   Major

112 (50)

40(58)

 

SAPS II, median (P25–75)

20 (14 – 27)

18, (12 – 25)

0.606b

Days of ICU length of stay, median (P25–75)

1 (0.81–2)

1 (0.88–3)

0.149b

Days of ICU length of stay, n (%)

   

   ≤ 7 days

207 (92)

64 (93)

 

   > 7 days

19 (8)

5 (7)

 

Days of hospital length of stay, median (P25–P75)

16 (9–26)

25 (23–28)

0.005b

  1. a Pearson χ2. b Mann-Whitney test.
  2. BMI, Body Mass Index; ASA, American Society of Anesthesiologists; SAPS II, Simplified Acute Physiology Score, ICU, Intensive Care Unit; LOS, Length of ICU stay; P25 and P75 are the 25th and 75th percentiles.