Table 3.

Baseline and (a) three months values or (b) six months values for blood pressure^¶ and sodium and potassium excretion for all participants followed-up to that time point.

(a)	Baseline		Three months
	Intervention (n = 444)	Control (n = 450)	Intervention (n = 444)	Control (n = 450)
Systolic blood pressure (mm Hg)	128.5 (24.7)	127.3 (26.3)	124.6 (26.6)	123.8 (26.0)
Diastolic blood pressure (mm Hg)	76.8 (13.0)	75.8 (13.5)	74.2 (13.7)	74.0 (14.1)
Urinary sodium (mm/24 h)	100.9 (44.3)	103.6 (45.3)	94.0 (44.5)	97.5 (42.3)
Urinary potassium (mm/24 h)	48.3 (23.5)	49.3 (23.4)	50.1 (20.8)	52.1 (23.6)
Urinary creatinine (mm/24 h)	8.4 (2.6)	8.4 (2.6)	7.8 (2.5)	7.9 (2.8)
Urinary sodium/potassium ratio	2.4 (1.2)	2.4 (1.3)	2.1 (1.1)	2.1 (1.1)
Urinary sodium/creatinine ratio	12.4 (5.2)	12.8 (5.6)	12.4 (5.4)	13.0 (5.6)
Urinary potassium/creatinine ratio	6.0 (2.8)	6.1 (2.8)	6.7 (2.9)	6.9 (2.9)
(b)	Baseline		Six months
	Intervention (n = 399)	Control (n = 402)	Intervention (n = 399)	Control (n = 402)
Systolic blood pressure (mm Hg)	129.2 (24.6)	125.6 (25.5)	127.9 (27.7)	127.4 (26.0)
Diastolic blood pressure (mm Hg)	76.9 (13.0)	75.2 (13.3)	76.0 (14.2)	78.7 (14.3)
Urinary sodium (mm/24 h)	100.7 (45.2)	104.2 (45.5)	91.8 (41.8)	89.8 (39.1)
Urinary potassium (mm/24 h)	48.5 (23.9)	50.9 (24.2)	48.2 (21.5)	52.1 (21.9)
Urinary creatinine (mm/24 h)	8.4 (2.6)	8.4 (2.5)	8.0 (2.6)	8.0 (2.5)
Urinary sodium/potassium ratio	2.4 (1.3)	2.4 (1.3)	2.2 (1.2)	1.9 (1.0)
Urinary sodium/creatinine ratio	12.4 (5.2)	12.8 (5.6)	11.9 (5.1)	11.7 (4.7)
Urinary potassium/creatinine ratio	6.0 (2.9)	6.3 (2.9)	6.3 (2.7)	6.8 (2.7)

^¶ Adjusted for time of day

Missing values for urinary variables; intervention, 3 months n = 1, control, baseline n = 1, 3 months n = 4

Missing values for urinary variables; control, baseline n = 1, 6 months n = 1