Pectoralis Muscle Mass on Chest CT at Admission Predicts Prognosis in Patients with Pneumonia
Table 1
Patient characteristics.
Total
Survivors
Nonsurvivors
value
Age (yr)
77 ± 14
76 ± 14
84 ± 8
<0.001
Men
300 (62)
269 (6)
31 (61)
0.957
BMI (cm/kg2)
20.7 ± 4.3
20.9 ± 4.3
18.5 ± 3.4
<0.001
Comorbidity
Malignancy
135 (27.9)
115 (26.6)
20 (39.2)
0.084
COPD
68 (14.0)
58 (13.4)
10 (19.6)
0.323
Asthma
33 (6.8)
32 (7.4)
1 (2.0)
0.220
Interstitial lung disease
44 (9.1)
34 (7.9)
10 (19.6)
0.013
Smoking history
Nonsmoker
144 (29.8)
131 (50.6)
13 (39.4)
0.342
Current smoker
48 (9.9)
43 (16.6)
5 (15.2)
Past smoker
100 (20.7)
85 (32.8)
15 (45.5)
Device
Intubation
11 (2.3)
9 (2.1)
2 (3.9)
0.737
NIV
36 (7.5)
22 (5.1)
14 (27.5)
<0.001
HFNC
67 (13.9)
40 (9.3)
27 (52.9)
<0.001
Laboratory data
WBC (×103/μl)
11.3 ± 5.4
11.3 ± 5.3
11.8 ± 6.3
0.537
Albumin (mg/dl)
3.3 ± 0.6
3.3 ± 0.6
2.9 ± 0.4
<0.001
CRP (mg/dl)
11.4 ± 9.7
11.1 ± 9.7
13.4 ± 9.2
0.122
A-DROP
0
32 (6.6)
32 (7.4)
0 (0)
<0.001
1
69 (14.3)
69 (16.0)
0 (0)
2
123 (25.5)
113 (26.2)
10 (19.6)
3
150 (31.1)
141 (32.6)
9 (17.6)
4
92 (19.0)
68 (15.7)
24 (47.1)
5
17 (3.5)
9 (2.1)
8 (15.7)
PSI
1
4 (1.4)
4 (1.6)
0 (0)
<0.001
2
8 (2.8)
8 (3.3)
0 (0)
3
28 (9.9)
28 (11.5)
0 (0)
4
98 (34.8)
92 (37.9)
6 (15.4)
5
144 (51.1)
111 (45.7)
33 (84.6)
Continuous variables are expressed as mean ± SD and compared by using Student’s t-test. Categorical data are expressed as number (%) and compared by using the chi-square test. BMI = body mass index; COPD = chronic obstructive pulmonary disease; PSI = Pneumonia Severity Index; NIV = noninvasive ventilation; HFNC = high-flow nasal cannula; WBC = white Blood cell; CRP = C-reactive protein.
