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Table 1 Patient backgrounds on admission

From: Comparison of clinical characteristics and outcomes between aspiration pneumonia and community-acquired pneumonia in patients with chronic obstructive pulmonary disease

  AsP (n = 16,388) CAP (n = 70,942) p
Age (years) † 82.7 ± 8.0 77.4 ± 9.5 <0.001
  40–64 426 (2.6) 7,318 (10.3)  
  65–74 1,851 (11.3) 16,562 (23.3)  
  75–84 6,935 (42.3) 30,759 (43.4)  
  ≥85 7,176 (43.8) 16,303 (23.0)  
Sex      <0.001
  Male 13,328 (81.3) 58,815 (82.9)  
  Female 3060 (18.7) 12,127 (17.1)  
Body mass index (kg/m2)† 18.5 ± 3.6 19.9 ± 3.8 <0.001
  <18.5 7,196 (54.9) 23,835 (39.0)  
  18.5–24.9 5,338 (40.7) 31,964 (52.3)  
  25.0–29.9 512 (3.9) 4,684 (7.7)  
  >30 58 (0.4) 631 (1.0)  
Dyspnea scale      <0.001
  I 562 (3.8) 6159 (9.4)  
  II 966 (6.5) 8,991 (13.7)  
  III 1,239 (8.4) 9,001 (13.7)  
  IV 2,509 (16.9) 16,277 (24.8)  
  V 4,284 (28.9) 16,885 (25.7)  
  Unspecified 5,273 (35.5) 8,348 (12.7)  
Level of consciousness      <0.001
  Alert 10,233 (62.5) 60,993 (86.0)  
  Dull 4,048 (24.7) 7,220 (10.2)  
  Somnolence 1,379 (8.4) 1,610 (2.3)  
  Coma 724 (4.4) 1,116 (1.6)  
ADL level      <0.001
  20 1,633 (11.2) 23,281 (37.8)  
  15–19 1,124 (7.7) 8,462 (13.7)  
  10–14 1,614 (11.1) 9,887 (16.0)  
  5–9 1,590 (10.9) 6,113 (9.9)  
  0–4 8,598 (59.1) 13,927 (22.6)  
A-DROP score ‡ 2 [2, 3] 2 [13] <0.001
  Mild 175 (1.9) 4,293 (8.8)  
  Moderate 4,833 (53.7) 31,067 (63.6)  
  Severe 2,352 (26.1) 9,630 (19.7)  
  Extremely severe 1,641 (18.2) 3,868 (7.9)  
  1. Data are expressed as numbers (%), unless otherwise indicated; † data are expressed as averages ± standard deviation; ‡ data are expressed as medians [interquartile range]. Abbreviations:AsP aspiration pneumonia, CAP community-acquired pneumonia, ADL activities of daily life