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Table 3 Outcomes of mechanically ventilated ICU patients stratified by age and gender

From: Gender- and age-based differences in outcomes of mechanically ventilated ICU patients: a Chinese multicentre retrospective study

Variables

All women

(n = 314)

All men

(n = 539)

P value

Women < 65 years (n = 120)

Men < 65 years (n = 208)

P value

Women ≥ 65 years (n = 194)

Men ≥ 65 years (n = 331)

P value

Ventilator-free days within 30 days a (days)

23 (0, 27)

20 (0, 27)

0.025

26 (1, 28)

24 (9, 27)

0.258

19 (0, 27)

11 (0, 26)

0.024

Successful weaning within 30 days b

202 (64.3)

320 (59.4)

0.151

86 (71.7)

154 (74.0)

0.641

116 (59.8)

166 (50.2)

0.032

Total duration of MV (hours)

104 (46, 236)

136 (60, 287)

0.008

73 (41, 160)

112 (58, 237)

0.003

125 (56, 339)

154 (64, 328)

0.255

ICU LOS (days)

7 (4, 15)

9 (5, 19)

0.001

5 (3, 10)

8 (4, 16)

< 0.001

9 (4, 20)

11 (5, 21)

0.173

Hospital LOS (days)

21 (12, 35)

24 (14, 40)

0.015

19 (11, 36)

25 (14, 40)

0.013

21 (13, 35)

24 (14, 40)

0.252

ICU mortality

85 (27.1)

178 (33.0)

0.069

24 (20.0)

37 (17.8)

0.620

61 (31.4)

141 (42.6)

0.011

Hospital mortality

90 (28.7)

191 (35.4)

0.042

25 (20.8)

40 (19.2)

0.726

65 (33.5)

151 (45.6)

0.006

ICU costs (10,000 CNY)

5.5 (2.7, 10.9)

7.3 (3.7, 14.7)

< 0.001

4.4 (2.1, 7.9)

6.7 (3.3, 12.5)

< 0.001

7.2 (3.5, 13.4)

7.8 (4.1, 15.5)

0.067

Hospital costs (10,000 CNY)

9.9 (5.5, 15.5)

12.0 (7.2, 19.9)

< 0.001

7.3 (4.2, 13.1)

11.9 (6.8, 20.3)

< 0.001

10.9 (5.9, 16.7)

12.1 (7.2, 19.9)

0.041

Withhold/withdraw life sustaining treatments

47 (15.0)

82 (15.2)

0.914

14 (11.7)

24 (11.5)

0.972

33 (17.0)

58 (17.6)

0.869

Discharge destination

  

0.010

  

0.030

  

0.290

 Home

195 (87.1)

265 (76.1)

 

83 (87.4)

124 (73.8)

 

112 (86.8)

141 (78.3)

 

 Respiratory care ward

8 (3.6)

15 (4.3)

 

3 (3.2)

5 (3.0)

 

5 (3.9)

10 (5.6)

 

 Nursing home

3 (1.3)

10 (2.9)

 

0 (0.0)

2 (1.2)

 

3 (2.3)

8 (4.4)

 

 Other hospital

18 (8.0)

58 (16.7)

 

9 (9.5)

37 (22.0)

 

9 (7.0)

21 (11.7)

 
  1. Data are expressed as the median (interquartile range), and number (percentage). ICU intensive care unit, MV mechanical ventilation, LOS length of stay, CNY Chinese Yuan
  2. a Ventilator-free days within 30 days are defined as 30 minus the total number of days with invasive MV. Nonsurvivors were considered to have 0 ventilator-free days
  3. b Successful weaning from MV was defined as complete respiratory autonomy for at least 48 h
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BMC Anesthesiology

ISSN: 1471-2253

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