Blood Pressure in relation to 24-Hour Urinary Sodium and Potassium Excretion in a Uruguayan Population Sample

Table 3

Standardized means of age, systolic blood pressure, urinary sodium, and potassium excretion by cluster in whole sample (A; n=149) and in participants not using antihypertensive treatment (B; n=110).

	A				B
	Cluster 1	Cluster 2	Cluster 3	Cluster 4	Cluster 1	Cluster 2	Cluster 3
	N=47	N=23	N=34	N=45	N=34	N=34	N=42
Mean (SD) characteristic
Age (y)	0.74±0.68	0.71±0.62	-0.75±0.91	-0.57±0.67	0.85±0.76	-0.32±0.75	-0.43±0.93
Systolic pressure (mm Hg)	0.64±0.90	0.58±0.87	-1.11±0.53	-0.12±0.59	0.82±0.76	0.24±0.73	-0.86±0.62
UNa (mmol/day)	-0.70±0.53	0.42±0.94	-0.66±0.54	1.01±0.74	-0.39±0.58	1.21±0.57	-0.66±0.58
UK (mmol/day)	-0.52±0.60	1.50±0.92	-0.62±0.63	0.24±0.67	-0.12±0.81	0.79±1.05	-0.55±0.63

Bold denotes higher value within the cluster. A cluster represents a group of individuals with similar systolic blood pressure values, age, and urinary sodium and potassium excretion