Skip to main content

Table 1 Baseline characteristics of cases and controls

From: Comparison of risk prediction scoring systems for ward patients: a retrospective nested case-control study

Characteristics Controls Cases P value
(n = 328) (n = 328)
Demographics    
Age, median (IQR) 64 (49-78) 67 (55-79) 0.01
Body mass index, median (IQR) 28 (23-32) 27 (23-31) 0.3
Female, n (%) 207 (63) 173 (53) 0.01
Race, n (%)    0.02
White, non-Hispanic 60 (18) 93 (28)  
Black, non-Hispanic 111 (34) 96 (29)  
Hispanic 134 (41) 109 (33)  
Other 23 (7) 30 (9)  
Service, n (%)    0.2
Medical 269 (82) 255 (78)  
Surgical 59 (18) 73 (22)  
Suspected source of infection, n (%)   
Pneumonia 84 (26) 135 (42) <0.001
Urinary tract 92 (28) 73 (22) 0.09
Skin or soft tissue 20 (6) 14 (4) 0.3
Peritonitis 3 (1) 9 (3) 0.14
Other 134 (41) 119 (36) 0.3
Comorbidities, n (%)    
Severe sepsis 106 (32) 248 (76) <0.001
Chronic liver disease 77 (23) 83 (25) 0.6
Chronic pulmonary disease 136 (41) 123 (38) 0.3
Chronic renal disease 82 (25) 89 (27) 0.6
Congestive heart failure 97 (30) 125 (38) 0.02
Diabetes mellitus 122 (41) 127 (43) 0.7
History of myocardial infarction 49 (15) 57 (17) 0.5
Human immunodeficiency virus 21 (6) 15 (5) 0.4
Malignancy 61 (19) 76 (23) 0.17
Metastatic 23 (7) 29 (9) 0.5
  1. IQR, interquartile range.