Table 4.

Multiple Regression Analysis of the Change in HRV for the Empagliflozin Group

Secondary evaluation items	Single regression			Multiple regression
	Regression coefficient	P	Partial regression coefficient	95% confidence interval	P
SDANN
Systolic blood pressure	0.860	< 0.001	1.235	0.774–1.697	< 0.001
Hematocrit	0.115	0.447
r-MSSD
Maximum CK	0.003	0.01
Hematocrit	0.188	0.212
HF
Maximum CK	0.421	0.002
Hematocrit	0.174	0.248
LF
Systolic blood pressure	36.859	0.02
Hematocrit	0.146	0.334

SDANN, Standard deviation of all 5 min mean normal RR intervals; r-MSSD, Square root of the mean of the sum of the squares of differences between adjacent RR intervals; HF, high-frequency power; LF, low-frequency power; CK, creatine kinase