Table 1.

Patient characteristics and hemodynamics

	Total (n = 98)	Adenosine control* (n = 50)	Regadenoson control (n = 24)	Adenosine caffeine <4 h* (n = 15)	Regadenoson caffeine <4 h (n = 9)
Age (years)	65 ± 11	67 ± 11	66 ± 11	67 ± 11	59 ± 11
Male	16 (49)	22 (44)	11 (46)	8 (53)	5 (56)
Systolic RR rest (mm Hg)	148 ± 20	146 ± 28	147 ± 19	144 ± 20	151 ± 21
Systolic RR stress (mm Hg)	135 ± 20	142 ± 23	133 ± 19	139 ± 15	139 ± 23
Diastolic RR rest (mm Hg)	88 ± 12	85 ± 19	89 ± 12	83 ± 9	85 ± 9
Diastolic RR stress (mm Hg)	81 ± 12	80 ± 10	82 ± 11	79 ± 7	79 ± 14
HR rest (bpm)	78 ± 18	76 ± 15	82 ± 18	70 ± 7	67 ± 12
HR stress (bpm)	100 ± 20	87 ± 14	107 ± 18	81 ± 10	84 ± 12
HRR† (%)	21	16	32	16	26
Systolic RR response†† (%)	−5 ± 10	−2 ± 12	−9 ± 7	−3 ± 7	−8 ± 5
Diastolic RR response‡ (%)	−5 ± 10	−4 ± 11	−7 ± 9	−4 ± 8	−8 ± 10

^†HRR—% change in HR from rest to stress

^††Systolic RR response—% change in systolic RR

^‡Diastolic RR response—% change in diastolic RR. Results are presented as mean ± standard deviation or n (%)

*Results as previously reported by Kuijpers et al. [14]