TABLE 1.

Demographic characteristics of patients with MRSA bacteremiaa

CharacteristicValue for case groupbP value
All casesCommunity associatedHealth care associated, community onsetHealth care associated, hospital onset
Total subjects2015011041
Sex
    Male112 (56)29 (58)63 (57)20 (49)NS
    Female89 (44)21 (42)47 (43)21 (51)NS
Age (yr)
    <182 (1)2 (4)0 (0)0 (0)NS
    18-3421 (10)9 (18)8 (7)4 (10)NS
    35-4948 (24)18 (36)22 (20)8 (19)0.062
    50-6466 (33)15 (30)36 (33)15 (37)NS
    ≥6564 (32)6 (12)44 (40)14 (34)0.003
Race
    Black143 (71)32 (64)84 (76)27 (66)NS
    White54 (27)16 (32)24 (22)14 (34)NS
    Other4 (2)2 (4)2 (2)0 (0)NS
Comorbidities
    None20 (10)14 (28)3 (3)3 (7)<0.001
    HIV8 (4)2 (4)6 (5)0 (0)NS
    Diabetes mellitus79 (39)16 (32)47 (43)16 (39)NS
    Chronic kidney disease72 (36)2 (4)54 (49)16 (39)<0.001
    Hemodialysis49 (24)0 (0)37 (34)12 (29)<0.001
    COPD23 (11)3 (6)14 (13)6 (15)NS
    Cardiovascular disease85 (42)4 (8)56 (51)25 (23)<0.001
    Neurologic disease50 (25)4 (8)32 (29)14 (34)0.005
    Liver disease52 (26)19 (38)23 (21)10 (24)0.071
    Malignancy30 (15)0 (0)24 (22)6 (15)0.002
IVDU45 (22)28 (56)11 (10)6 (15)<0.001
  • a Statistical comparisons were made between the three epidemiological groups (community associated, health care associated—community onset, and health care associated—hospital onset). NS, not significant; HIV, human immunodeficiency virus; COPD, chronic obstructive pulmonary disease.

  • b Values are no. (%) of patients unless otherwise noted.