Table 2.

Procedures.

Variables	Screening (30 minutes)	Pretest (60 minutes)	Intervention (8 weeks)	Posttest (30 minutes)
Information session	N/Aa	A low-sodium diet intervention Using wireless, wearable, and a mobile app 24-hour urine collection	N/A	N/A
Self-report	Age Informed consent	N/A	Dietary sodium intake In-home blood pressure monitoring	N/A
Noninvasive measure	Blood pressure	Height and weight Blood pressure 24-hour urinary excretion	N/A	Height and weight Blood pressure 24-hour urinary excretion
Blood collection	N/A	Salt sensitivity gene	N/A	N/A