Table 4.

Relationship between change in Na/K ratio and BP change using multiple regression analyses adjusted for age, sex, BMI change, and alcohol intake. We assessed the relationship between change in urinary Na/K ratio and BP change using multiple regression analyses adjusted for age, sex, BMI change, and alcohol intake

All participants (n = 12,877)
SBP	β	P value	DBP	β	P value
Age	0.02	<0.01	Age	0.00	0.97
Sex	1.47	<0.01	Sex	0.98	<0.01
Difference between alcohol in 2017 and in 2018	1.41	<0.01	Difference between alcohol in 2017 and in 2018	0.73	<0.01
Difference between BMI in 2017 and in 2018	2.25	<0.01	Difference between BMI in 2017 and in 2018	1.26	<0.01
Difference between Na/K ratio in 2017 and in 2018	0.43	<0.01	Difference between Na/K ratio in 2017 and in 2018	0.22	<0.01

BMI body mass index, BP blood pressure, DBP diastolic blood pressure, Na/K ratio sodium/potassium ratio, SBP systolic blood pressure