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. Author manuscript; available in PMC: 2013 Apr 14.
Published in final edited form as: Arch Intern Med. 2009 Mar 9;169(5):463–473. doi: 10.1001/archinternmed.2008.603

Table 2.

Baseline characteristics and predisposing conditions in 2781 patients with definite endocarditis. Data are number (%) unless otherwise stated.

Total Cohort Patients admitted directly to study sites onlya Region
P value for the difference in regions
North America South America Europe Other
A. Baseline Characteristics
Age, years (median (IQR)) 57.9 (43.2–71.8) 59.8 (44.2–73.1) 52.9 (44.1–66.4) 56.8 (40.3–70.4) 61.4 (45.1–72.7) 58.0 (40.5–72.9) <0.001
Male gender 1889/2777 (68) 1045/1556 (67) 388/596 (65) 179/254 (70) 873/1212 (72) 449/715 (63) <0.001
First sign to admission < 1 month 2088/2711 (77) 1201/1529 (79) 496/582 (85) 166/244 (68) 896/1174 (76) 530/711 (75) <0.001
Hemodialysis 220/2777 (8) 130/1556 (8) 124/596 (21) 20/254 (8) 49/1210 (4) 27/717 (4) <0.001
Diabetes 447/2764 (16) 261/1550 (17) 158/592 (27) 25/253 (10) 169/1207 (14) 95/712 (13) <0.001
HIV positive 58/2748 (2) 41/1540 (3) 16/594 (3) 4/236 (2) 33/1211 (3) 5/707 (1) 0.02
Cancer 230/2772 (8) 160/1553 (10) 52/596 (9) 15/251 (6) 101/1210 (8) 62/715 (9) 0.56
IE type 0.05
  Native valve 1901/2636 (72) 1048/1471 (71) 411/573 (72) 167/246 (68) 860/1166 (74) 463/651 (71)
  Prosthetic valve 563/2636 (21) 321/1471 (22) 116/573 (20) 66/246 (27) 227/1166 (20) 154/651 (24)
  Pacemaker/ICD 172/2636 (7) 102/1471 (7) 46/573 (8) 13/246 (5) 79/1166 (7) 34/651 (5)
B. Predisposing Conditions
Current IV drug use 268/2746 (10) 157/1540 (10) 93/587 (16) 1/249 (0.4) 113/1203 (9) 61/707 (9) <0.001
Previous IE 222/2780 (8) 138/1557 (9) 66/596 (11) 26/254 (10) 84/1213 (7) 46/717 (6) 0.003
Invasive procedure within 60 days 690/2581 (27) 392/1463 (27) 162/508 (32) 64/247 (26) 289/1145 (25) 175/681 (26) 0.03
Chronic IV access 244/2763 (9) 142/1548 (9) 148/595 (25) 12/251 (5) 56/1205 (5) 28/712 (4) <0.001
Endocavitary device
  Pacemaker 262/2752 (10) 146/1540 (9) 55/595 (9) 23/252 (9) 137/1191 (12) 47/714 (7) 0.005
  ICD 27/2720 (1) 15/1521 (1) 16/593 (3) 0/249 (0) 8/1172 (1) 3/706 (0.4) <0.001
Congenital heart disease 311/2656 (12) 167/1481 (11) 62/582 (11) 53/244 (22) 111/1156 (10) 85/674 (13) <0.001
Native valve predisposition 884/2761 (32) 538/1547 (35) 147/596 (25) 93/252 (37) 370/1201 (31) 274/712 (38) <0.001

Abbreviations: HIV, human immunodeficiency virus; IE = infective endocarditis, IV = intravenous, ICD = implantable cardioverter defibrillator

a

Excludes patients transferred to study hospitals from other health care facilities