Table 2 Comparison of first laboratory examinations of elderly bedridden patients with hip fracture and lower respiratory tract infection after admission

M ± SD

N = 101

N = 46

N = 23

N = 32

WBC (× 10⁹/l)

10.21 ± 4.44

10.33 ± 3.83

9.6 ± 3.69

10.49 ± 5.67

0.750

NEU (%)

78.5 ± 9.98

79.91 ± 11.38

77.84 ± 5.98

77.04 ± 10.13

0.432

HGB (g/l)

114.3 ± 20.0

114 ± 19.31

114.2 ± 23.2

114.9 ± 19.1

0.982

PO₂ (mmHg)

76.21 ± 15.2

74.81 ± 11.25

74.7 ± 12.98

79.1 ± 20.55

0.438

PCO₂ (mmHg)

33.48 ± 5.8

32.4 ± 4.3

34.3 ± 5.59

34.6 ± 7.52

0.213

CRP (mg/l), n = 87

61.76 ± 62.1

80.49 ± 79.12

47.07 ± 38.35

52.56 ± 51.26

0.084

 < 20

27 (31%)

8 (24.2%)

8 (36.4%)

11 (34.4%)

0.259

 20–120

50 (57.5%)

18 (54.5%)

13 (59.1%)

19 (59.4%)

 > 120

10 (11.5%)

7 (21.2%)

1 (4.5%)

2 (6.3%)

PCT (ng/ml), n = 49

2.07 ± 7.5

0.22 ± 0.38

6.21 ± 13.25

1.25 ± 5.49

0.105

 < 0.1

28 (57.1%)

9 (64.3%)

5 (45.5%)

14 (58.3%)

0.545

 0.1–25

18 (36.7%)

5 (35.7%)

4 (36.4%)

9 (37.5%)

 > 25

3 (6.1%)

0 (0%)

2 (18.2%)

1 (4.2%)

HBA1C%

5.9 ± 0.83

6.07 ± 0.98

6.02 ± 0.72

5.67 ± 0.59

0.124

ALB (g/l)

37.89 ± 4.88

39.56 ± 4.56

36.6 ± 4.39

36.4 ± 5.01

0.006

sCr (μmol/l)

69.5 ± 29.56

66.43 ± 22.98

74.4 ± 35.68

70.38 ± 33.4

0.564

 Unilateral

36 (35.6%)

13 (28.3%)

10 (43.5%)

13 (40.6%)

0.358

 Biolateral

65 (64.4%)

33 (71.7%)

13 (56.5%)

19 (59.4%)