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Table 3 Crude and adjusted analysis according to ICU admission.

From: Influence of socioeconomic status on community-acquired pneumonia outcomes in elderly patients requiring hospitalization: a multicenter observational study

 

Group

N ICU/N group

Crude OR (95% CI)

P value

Adjusted OR (95% CI)

P value

Age (years): Median (range)

ICU no

77 (65-100)

    
 

ICU yes

75 (65-87)

--

0.007

0.91 (0.86-0.96)

0.001

Municipality Family Income

Low

32/536

    
 

High

19/115

3.12 (1.70-5.71)

<0.001

--

--

Social Class

V

7/186

    
 

I-IVb

28/325

2.41 (1.04-5.65)

0.037

--

--

Disabling Neurological Disease

no

50/565

    
 

yes

1/86

0.12 (0.02-0.89)

0.013

--

--

PSI

<4

4/214

    
 

≥4

42/375

6.62 (2.34-18.74)

<0.001

5.80 (2.01-16.69)

0.001

Combined antibiotic Treatment treatment

no

12/400

    
 

yes

39/251

5.95 (3.05-11.60)

<0.001

6.37 (2.89-14.05)

<0.001

Radiotherapy

no

49/647

    
 

yes

2/4

12.20 (1.68-88.52)

0.033

--

--

Bacteremiaa

no

32/350

    
 

yes

11/55

2.48 (1.17-5.28)

0.015

--

--

Empyema

no

47/634

    
 

yes

4/17

3.84 (1.20-12.25)

0.037

--

--

Admitting Hospital

      
 

1

23/117

Ref

 

Ref

 
 

2

14/163

0.38 (0.19-0.78)

0.011

0.21 (0.09-0.51)

0.001

 

3

10/233

0.18 (0.08-0.40)

<0.001

0.15 (0.06-0.39)

<0.001

 

4

4/48

0.37 (0.12-1.14)

0.104

0.74 (0.24-2.28)

--

 

5

0/90

0.02 (0.00-0.37)

<0.001

NC

--

LOS (days): Median (range)

ICU no

8 (1-95)

    
 

ICU yes

15 (1-62)

--

<0.001

1.05 (1.03-1.08)

<0.001

  1. Abbreviations: CI: Confidence interval; ICU: Intensive Care Unit; LOS: Length of stay; M: Median; NC: Not Calculated; OR: Odds Ratio;
  2. PSI: Pneumonia Severity Index.
  3. a Only 405 patients in whom blood cultures were made were evaluated.
  4. For ICU admission we adjusted by age, PSI, combined antibiotic treatment, hospital admission and length of hospitalization.