Skip to main content
. 2013 Jan 12;34(29):2271–2280. doi: 10.1093/eurheartj/ehs433

Table 2.

Baseline characteristics of patients

Characteristic n Median (25th, 75th) of baseline resting heart rate Median (25th, 75th) of baseline chronotropic index
Sex
 Male 720 70 (61–78) 54 (41–69)
 Female 398 71 (63–79) 59 (45–74)
Race
 Black or African American 437 72 (63–79) 55 (42–71)
 White 598 70 (62–78) 56 (43–70)
 Other 83 68 (61–77) 56 (38–72)
Region
 USA 971 71 (63–79) 56 (42–72)
 Canada 94 68 (62–77) 48 (39–61)
 France 53 70 (59–80) 55 (47–66)
Baseline NYHA class
 II 771 70 (61–78) 59 (47–73)
 III/IV 347 72 (64–80) 48 (34–63)
CCS angina class
 No angina 941 70 (62–79) 56 (43–71)
 I 92 71 (62–77) 60 (47–73)
 II–IV 85 71 (62–77) 46 (36–60)
Aetiology
 Ischaemic 512 68 (61–76) 53 (39–66)
 Non-ischaemic 606 72 (64–81) 57 (46–73)
Diabetes
 No 749 69 (61–78) 58 (45–73)
 Yes 369 72 (64–80) 51 (37–65)
Mitral regurgitation
 Non-severe/nonea 918 70 (62–78) 56 (44–71)
 Severeb 116 72 (61–80) 54 (37–72)
Ventricular conduction prior to CPX
 Normal 661 71 (62–79) 56 (42–71)
 LBBB 233 69 (62–77) 58 (48–72)
 RBBB 44 73 (64–79) 57 (36–70)
 IVCD 152 70 (63–78) 53 (39–68)
ACE inhibitor
 No 254 71 (63–78) 56 (42–70)
 Yes 864 70 (62–79) 56 (42–71)
Angiotensin II receptor blocker
 No 863 70 (62–79) 55 (41–71)
 Yes 255 71 (63–78) 57 (44–71)
Aldosterone antagonist
 No 635 70 (62–78) 56 (42–71)
 Yes 483 71 (63–79) 55 (42–71)
Digoxin
 No 670 70 (62–78) 57 (43–72)
 Yes 448 70 (63–79) 53 (40–68)
Loop diuretic
 No 278 69 (61–77) 60 (47–75)
 Yes 840 71 (63–79) 54 (41–69)
Non-loop diuretic
 No 1013 70 (62–78) 56 (43–71)
 Yes 105 72 (62–79) 53 (39–70)

CCS, Canadian Cardiovascular Society; LBBB, left bundle branch block; RBBB, right bundle branch block; IVCD, intraventricular conduction delay.

aA combination of these original categories: none, trivial, mild, mild to moderate, and moderate.

bA combination of the original categories: severe and moderate to severe.