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Table 1 Baseline characteristics of study population

From: Hospitalization costs for community-acquired pneumonia in Dutch elderly: an observational study

 

Total CAP

IPD-CAP

non-IPD-CAP

p-value

Admissiona, n

1785

71

1714

 

Age in years, mean (SD)

77.4 (6.6)

76 (5.5)

77.5 (6.7)

 

Male, n (%)

1307 (73.2)

43 (60.6)

1264 (73.7)

*

ReceivedPCV13, n (%)

861 (48.2)

24 (33.8)

837 (48.8)

*

Risk group for developing pneumococcal disease, n (%)

 • Low

248 (13.9)

18 (25.4)

230 (13.4)

 

 • Medium

1207 (67.6)

47 (66.2)

1160 (67.7)

 

 • High

330 (18.5)

6 (8.5)

324 (18.9)

 

Length of stay in days, mean (95 % CI)

12.1 (11.6–12.6)

15.3 (12.3–18.9)

12.0 (11.5–12.4)

*

 • Ward days, mean (95 % CI)

11.1 (10.7–11.6)

13.0 (10.3–15.8)

11.1 (10.6–11.5)

 

 • ICU days, mean (95 % CI)

1.0 (0.8–1.2)

2.4 (0.9–4.2)

0.9 (0.7–1.1)

*

 • Intubationdays, mean (95 % CI)

0.4 (0.3–0.6)

1.1 (0.3–2.2)

0.4 (0.3–0.6)

*

Illness duration in daysb, mean (95 % CI)

16.9 (16.3–17.5)c

19.8 (16.1–24.1)

16.7 (16.1–17.4)c

 

Days between onset and hospital admission, mean (95 % CI)

4.9 (4.6–5.2)d

4.3 (2.7–6.8)

4.9 (4.6–5.3)d

 

Pneumococcal severity index (PSI), n (%)

 • I-II

126 (7.1)

5 (7.0)

121 (7.1)

 

 • III-IV

1327 (74.3)

48 (67.6)

1279 (74.6)

 

 • V

332 (18.6)

18 (25.4)

314 (18.3)

 

In-hospitalmortality, n (%)

201 (11.3)

11 (15.5)

190 (11.1)

 

30-day mortality, n (%)

235 (13.2)e

11 (15.5)

224 (13.1)e

 

60-day mortality, n (%)

300 (16.8)e

12 (16.9)

288 (16.8)e

 

6-months mortality, n (%)

444 (24.9)e

18 (25.4)

426 (24.9)e

 

Location of discharge, n (%)

1584 (88.7)

60 (84.5)

1524 (88.9)

 

 • Home

1371 (86.6)

51 (85.0)

1320 (86.6)

 

 • Nursing home

160 (10.1)

8 (13.3)

152 (10)

 

 • Others

53 (3.3)

1 (1.7)

52 (3.4)

 
  1. *Statistically significant difference between non-IPD-CAP and IPD-CAP
  2. aAdmissions within 30 days post-discharge of a suspected CAP hospitalization episode were labeled as a readmission and analyzed as a continuation of the previous admission
  3. bNumber of days from onset to hospital discharge
  4. c11 with missing data
  5. d9 with missing data
  6. e2 with missing data