Table 1 Demographic and clinical characteristics

Age(years)

75.1 ± 12.8

68.3 ± 11.3*

75.8 ± 12.8

<0.001

Sex(M/F)

349/181

25/23

326/156

PSI

129.6 ± 33.5

116.8 ± 34.9

130.8 ± 33.2

PSI group

0.008

PSI II

15(2.8)

4(8.3)

11(2.3)

PSI III

51(9.6)

11(22.3)*

40(8.3)

PSI IV

195(36.8)

14(29.2)*

181(37.6)

PSI V

269(50.8)

19(39.6)*

250(51.9)

ICU n(%)

116 (21.9)

7(14.6)

109(22.6)

0.2

Admission within 90 d n(%)

317(59.8)

14(29.2)*

303(62.9)

<0.005

Nursing home n(%)

224 (42.3)

10(20.8)*

214(44.4)

0.002

Antibiotics within 90 d n(%)

232 (43.8)

13(27.1)*

219(45.4)

0.015

Active chemotherapy n(%)

47 (8.9)

0*

47(9.8)

0.024

Steroid use n(%)

63(11.9)

0*

63(13.1)

0.008

Wound care n(%)

103 (19.4)

11(22.9)

92(19.1)

0.528

CVA n(%)

264 (49.8)

13(27.1)*

251(52.1)

0.001

Malignancy n(%)

140(26.4)

5(10.4)*

135(28.2)

0.008

DM n(%)

220 (41.5)

34(70.8)*

186(38.6)

<0.005

Heart failure n(%)

84(15.8)

9(18.8)

75(15.6)

0.564

COPD n(%)

191(36)

11(22.9)*

180(37.3)

0.047

Liver cirrhosis

20 (3.8)

0

20(4.1)

0.151