Table 3. Subgroup analysis in patients with heart failure with reduced ejection fraction and SBP < 100 mmHg.

	SBP < 90 mmHg (n = 19)			90 mmHg ≤ SBP < 100 mmHg (n = 28)		P-value
	Difference (95% CI)	P-value		Difference (95% CI)	P-value
SBP: systolic blood pressure.
Left ventricular ejection fraction, %	9.7 (3.7–15.7)	0.004		11.6 (7.9–15.3)	< 0.001	0.54
Left ventricular end-diastolic diameter, mm	-1.6 (-5.0–1.9)	0.346		-4.6 (-7.7–-1.6)	0.004	0.17
Left atrium diameter, mm	-1.5 (-4.2–1.1)	0.232		-4.2 (-7.7–-0.7)	0.020	0.24
N-terminal pro-B-type natriuretic peptide, pg/mL	-1509.9 (-2332.5–-687.3)	0.002		-787.0 (-4083.6–-431.8)	0.002	0.72
SBP, mmHg	6.9 (0.1–13.7)	0.048		8.0 (2.4–13.5)	0.007	0.80
Heart rate, beats/min	-10 (-0.5–25.0)	0.073		-12 (2.0–20.5)	0.023	0.88
Estimated glomerular filtration rate, mL/min per 1.73 m2	5.5 (-9.2–20.2)	0.423		9.1 (-0.8–18.9)	0.067	0.65
Serium potassium, mmol/L	0.2 (-0.1–0.4)	0.150		0.1 (-0.1–0.3)	0.377	0.72