Skip to main content

Table 1 Baseline characteristics of the survivors and non-survivors

From: Six underlying health conditions strongly influence mortality based on pneumonia severity in an ageing population of Japan: a prospective cohort study

  Number of survivors Number of non-survivorsa
  N = 1632 (92.1%) N = 140 (7.9%)
  n (%) n (%)
Underlying health conditions   
Age group
  ≤ 64 429 (96.6) 15 (3.4)
 65–74 291 (92.1) 25 (7.9)
 75–84 517 (92.0) 45 (8.0)
  ≥ 85 395 (87.8) 55 (12.2)
HCAP factors
 Hospitalisation ≥2 days in the preceding 90 days, N = 1770 238 (83.5) 47 (16.5)
 Nursing home resident, N = 1771 225 (86.2) 36 (13.8)
 Chronic dialysis within 30 days, N = 1547 24 (82.8) 5 (17.2)
 Home care, N = 1552 14 (66.7) 7 (33.3)
 Home infusion therapy 5 (62.5) 3 (37.5)
 Home wound care 9 (69.2) 4 (30.8)
 Male gender 940 (90.4) 100 (9.6)
Comobidities   
 Congestive heart failure 212 (89.1) 26 (10.9)
 Liver disease 83 (87.4) 12 (12.6)
 Renal disease 142 (88.7) 18 (11.3)
 Neoplastic disease 284 (86.6) 44 (13.4)
 Chronic lung disease 368 (90.6) 38 (9.4)
 Diabetes mellitus 309 (90.9) 31 (9.1)
 Dementia 202 (88.2) 27 (11.8)
Risk factors for aspiration, N = 1718   
 Witnessed aspiration 332 (89.0) 41 (11.0)
 Chronic impaired conscious level 67 (82.7) 14 (17.3)
 Chronic neurologic disorders 411 (90.5) 43 (9.5)
 Foreign bodies interfering with swallowing 19 (90.5) 2 (9.5)
 Bed-ridden state 125 (84.5) 23 (15.5)
Body mass index, N = 1331   
  < 18.5 333 (86.7) 51 (13.3)
 18.5–24.9 724 (94.5) 42 (5.5)
  ≥ 25 175 (95.6) 8 (4.4)
CURB score, N = 1361
 0 477 (96.7) 16 (3.3)
 1 464 (92.6) 37 (7.4)
 2 219 (85.5) 37 (14.5)
 3 80 (80.0) 20 (20.0)
 4 5 (45.4) 6 (54.6)
  1. N, n number of observations, HCAP healthcare-associated pneumonia, CURB Confusion, blood Urea nitrogen > 7 mmol/L, Respiratory rate > 30 per minute, and Blood pressure < 90 mmHg in systole or ≤ 60 mmHg in diastole
  2. apatients who died within 30-day after the hospital visit