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Table 1 Comparison of baseline characteristics between elderly and very elderly patients

From: Risk factors for mortality in elderly and very elderly critically ill patients with sepsis: a prospective, observational, multicenter cohort study

 

Elderly (n = 1193) (80.1%)

Very elderly (n = 297) (19.9%)

Overall (n = 1490)

p

Age (years) mean (SD)

72.4 (4.1)

82.8 (2.7)

74.5 (5.6)

< 0.001 Ç

APACHE II modified score mean (SD)

17.2 (7.0)

16.7 (7.2)

17.1 (7.0)

0.374 Ç

Number of organs involved on admission mean (SD)

2.9 (1.4)

2.9 (1.4)

2.9 (1.4)

0.888 Ç

ICU LOS mean (SD)

14.5 (18.8)

11.5 (20.4)

13.9 (19.2)

0.014 Ç

Median

7.7

5.4

7.2

0.012

Median in survivors

7.8

7.5

7.4

0.7

Median in nonsurvivors

5.8

5.3

7.8

0.5

Mortality N (%)*

727 (48.8)

161 (54.2)

727 (48.8)

0.027*

Sex (male) N (%)*

719 (60.3)

157 (52.9)

876 (58.8)

0.020*

Admission category N (%)

    

 Medical

715 (60.2)

138 (46.6)

853 (57.2)

< 0.001*

 Urgent surgery

361(30.4)

146 (49.3)

507 (34.0)

 

 Elective surgery

97 (8.2)

10 (3.4)

107 (7.2)

 

 Trauma

14 (1.2)

2 (0.7)

16 (1.1)

 

Source of infection N (%)

    

 Pneumonia

391 (32.8)

68 (22.9)

459 (30.8)

< 0.001*

 Peritonitis

396 (33.2)

135 (45.5)

531 (35.6)

 

 UTI

137 (11.5)

38 (12.8)

175 (11.7)

 

 SSTI

56 (4.7)

10 (3.4)

66 (4.4)

 

 Catheter-related bacteraemia

30 (2.5)

2 (0.7)

32 (2.1)

 

 Other

147 (12.3)

39 (13.1)

186 (12.5)

 

Patient location at sepsis diagnosis N (%)

    

 ED

469 (39.3)

127 (42.8)

596 (40.0)

0.023*

 Ward

547 (45.9)

144 (48.5)

691 (46.4)

 

 ICU

177 (14.8)

26 (8.8)

203 (13.6)

 

Baseline acute organ dysfunction N (%)

    

 Cardiovascular

1023 (85.8)

245 (82.5)

1268(85.1)

0.158*

 Pulmonary

250 (21.0)

62 (20.9)

312 (20.9)

0.976*

 Renal

940 (78.8)

241 (81.1)

1181(79.3)

0.371*

 Hepatic

191 (16.0)

50 (16.8)

241 (16.2)

0.730*

 Thrombocytopenia

263 (22.0)

60 (20.2)

323 (21.7)

0.490*

 Coagulopathy

415 (34.8)

104 (35.0)

519 (34.8)

0.941*

Sepsis resuscitation bundle N (%)$

102 (8.5)

14 (4.7)

116 (7.8)

0.027*

Sepsis management bundle N (%)$

165 (13.8)

32 (10.8)

197 (13.2)

0.164*

  1. APACHE II acute physiology and chronic health evaluation II, ICU intensive care unit, LOS length of stay, UTI urinary tract infection, SSTI soft and skin tissue infections, ED emergency department
  2. * χ2 tests; Ç Student’s t tests; $ sepsis resuscitation bundle (six tasks that should begin immediately and be accomplished within the first 6 h of presentation) and the sepsis management bundle (four tasks that should begin immediately and be completed within 24 h of presentation)