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Table 1 Characteristics of encounters with suspected Infection and fulfilled the SIRS criteria at 3 participating hospitals from 2015 to 2016 (N = 1405)

From: Comparing mortality between positive and negative blood culture results: an inverse probability of treatment weighting analysis of a multicenter cohort

  Culture negative (n = 1189) Culture positive (n = 216) P value
Demographic
 Sex (Male %) 745 (62.7%) 137 (63.4%) 0.830
 Age, median (interquartile range) 62.0 (47.0, 75.0) 68.0 (57.0, 76.8) 0.001*
 Age, year > = 65 551 (46.3%) 126 (58.3%) 0.0012*
 Nursing home residents 61 (5.1%) 14 (6.5%) 0.4164
Comorbidities
 Diabetes mellitus 248 (20.9%) 77 (35.6%) <.0001*
 Chronic pulmonary disease 71 (6.3%) 16 (7.8%) 0.399
 Hemiplegic stroke 160 (13.5%) 32 (14.8%) 0.593
 Previous myocardial infarction 36 (3.0%) 7 (3.2%) 0.867
 Congestive heart failure 80 (6.7%) 22 (10.2%) 0.072*
 Chronic liver disease 109 (9.2%) 29 (13.4%) 0.053
 Chronic kidney disease 99 (8.3%) 30 (13.9%) 0.009*
 Malignancies 120 (10.1%) 32 (14.8%) 0.040
Site of primary infection
 Lower respiratory tract infection 664 (55.8%) 104 (48.1%) 0.037*
 Urinary tract infection 120 (10.1%) 39 (18.1%) 0.001*
 skin and soft tissue infection 33 (2.8%) 8 (3.70%) 0.456
 Hepatobiliary infection 48 (4.0%) 22 (10.2%) < 0.001*
 Intra-abdomen infection 80 (6.7%) 15 (6.9%) 0.907
  1. *p < 0.05
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