BACKGROUND/AIMS: This study was conducted to assess the disease @entity55 according to age and presence of underlying diseases in @entity1 admitted with @entity497 ( @entity497 ). METHODS: We performed a retrospective, observational study and collected data targeting @entity1 with @entity497 (>=  50 years) from 11 hospitals. Disease burden was defined as total per-capita medical fee, severity (CURB-65), hospital length of stay (LOS), and mortality. RESULTS: Of the 693 enrolled subjects, elderly subjects (age, >=  65 years) had a higher mean CURB-65 score (1.56 vs. 0.25; p < 0.01) and higher mortality than nonelderly subjects (4.4% [n = 21] vs. 0.5% [n = 1]; p = 0.00). In addition, the total cost of @entity55 treatment was higher in elderly @entity1 compared to in nonelderly @entity1 (KRW 2,088,190 vs. US  1,701,386; p < 0.01). Those with an underlying disease had a higher CURB-65 score (1.26 vs. 0.68; p < 0.01), were much older (mean age, 71.24 years vs. 64.24 years; p < 0.01), and had a higher mortality rate than those without an underlying disease (3.5% [n = 20] vs. 1.7% [n = 2]; p = 0.56). Total per-capita medical fees were higher (KRW 2,074,520 vs. US  1,440,471; p < 0.01) and hospital LOS was longer (mean, 8.38 days vs. 6.42 days; p < 0.01) in @entity1 with underlying diseases compared to those without. CONCLUSIONS: Due to the relatively high disease burden in Korea, particularly in the elderly and in those with an underlying disease, closer and more careful observation is needed to improve the outcomes of @entity1 with @entity497 .

Disease XXXX in Korean adults aged over 50 years stratified by age and underlying diseases.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity497 :: ('MESH:D003147', 'Disease') :: ['CAP', 'community-acquired pneumonia'] @entity55 :: ('MESH:D011014', 'Disease') :: ['burden of pneumonia', 'pneumonia']
@entity55 :: (MESH:D011014,Disease) :: ['burden of pneumonia']
