Table 4 Comparison of conventional and new prognostic scoring in the derivation and validation cohorts.

From: Development and validation of a new scoring system for prognostic prediction of community-acquired pneumonia in older adults

 

Score

Derivation cohort

Validation cohort

n

30-day mortality

In-hospital mortality

n

30-day mortality

In-hospital mortality

CURB-65

0

0

–

–

0

–

–

1

314

9 (2.9)

17 (5.4)

329

8 (2.4)

11 (3.3)

2

357

28 (7.8)

45 (12.6)

437

23 (5.3)

29 (6.6)

3

155

19 (12.3)

31 (20.0)

278

31 (11.2)

38 (13.7)

4

42

8 (19.0)

14 (33.3)

96

18 (18.8)

21 (21.9)

5

4

2 (50.0)

2 (50.0)

18

6 (33.3)

7 (38.9)

PSI class

I

1

0 (0.0)

0 (0.0)

   

II

67

0 (0.0)

0 (0.0)

   

III

223

1 (0.4)

2 (0.9)

   

IV

419

26 (6.2)

48 (11.5)

   

V

162

39 (24.1)

59 (36.4)

   

CHUBA

0

312

3 (1.0)

5 (1.6)

204

1 (0.5)

1 (0.5)

1

258

12 (4.7)

23 (8.9)

405

6 (1.5)

11 (2.7)

2

171

14 (8.2)

27 (15.8)

293

24 (8.2)

30 (10.2)

3

93

20 (21.5)

32 (34.4)

164

30 (18.3)

37 (22.6)

4

33

14 (42.4)

18 (54.5)

81

23 (28.4)

25 (30.9)

5

5

3 (60.0)

4 (80.0)

11

2 (18.2)

2 (18.2)

Total population

 

872

66 (7.6)

109 (12.5)

1,158

86 (7.4)

106 (9.2)

  1. Data are presented as n (%).
  2. CURB-65, confusion, urea, respiratory rate, blood pressure, age ≥ 65; PSI, pneumonia severity index; CHUBA, confusion, hypoxemia, urea, bedridden, albumin.
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