TY - JOUR
T1 - Lack of effectiveness of a low-sodium/high-potassium diet in reducing antihypertensive medication requirements in overweight persons with mild hypertension
AU - Davis, Barry R.
AU - Oberman, Albert
AU - Blaufox, M. Donald
AU - Wassertheil-Smoller, Sylvia
AU - Zimbaldi, Neal
AU - Kirchner, Kent
AU - Wylie-Rosett, Judith
AU - Langford, Herbert G.
N1 - Funding Information:
This research was supported by grants (HL-40072, HL-30171, HL-24369, HL-30163, and HL-41445) from the National Heart, Lung, and Blood Institute, National Institutes of Health, and U.S. Department of Health and Human Services.
PY - 1991
Y1 - 1991
N2 - The Trial of Antihypertensive Interventions and Management (TAIM) was a multicenter randomized drug (double-blind, placebo-controlled)-diet trial. One objective of TAIM was to assess the long-term ability of a low-sodium/high-potassium (Na+?/K+?) diet to maintain blood pressure control in persons at 110% to 160% ideal weight with diastolic blood pressure from 90 to 100 mm Hg who were on no drugs or on low-dose monotherapy. Participants, 56% men and 33% black, were randomized to usual diet (n = 296) or to Na +? K+? diet (n = 291) and within each diet group to placebo, 25 mg/day chlorthalidone, or 50 mg/day atenolol. Treatment failure was defined as lack of blood pressure control requiring additional drugs according to specified criteria. At baseline, the mean value for age was 48 years; blood pressure, 143/93 mm Hg; weight, 88 kg; and 24-h urinary sodium and potassium excretion rates, 133 and 57 mmol/day, respectively. At 3 years, the net difference in 24-h urinary sodium/potassium excretion rates between the N a +? /K+? and the usual diet groups was -30 and +11 mmol/L/day. The relative risk of treatment failure for N a +? /K+? compared to usual diet by proportional hazards regression was 0.95 (P =.71). This study provides no support for the sole use of a low-sodium/high-potassium diet as a practical therapeutic strategy in maintaining blood pressure control in the moderately obese. Am J Hypertens 1994;7:926-932.
AB - The Trial of Antihypertensive Interventions and Management (TAIM) was a multicenter randomized drug (double-blind, placebo-controlled)-diet trial. One objective of TAIM was to assess the long-term ability of a low-sodium/high-potassium (Na+?/K+?) diet to maintain blood pressure control in persons at 110% to 160% ideal weight with diastolic blood pressure from 90 to 100 mm Hg who were on no drugs or on low-dose monotherapy. Participants, 56% men and 33% black, were randomized to usual diet (n = 296) or to Na +? K+? diet (n = 291) and within each diet group to placebo, 25 mg/day chlorthalidone, or 50 mg/day atenolol. Treatment failure was defined as lack of blood pressure control requiring additional drugs according to specified criteria. At baseline, the mean value for age was 48 years; blood pressure, 143/93 mm Hg; weight, 88 kg; and 24-h urinary sodium and potassium excretion rates, 133 and 57 mmol/day, respectively. At 3 years, the net difference in 24-h urinary sodium/potassium excretion rates between the N a +? /K+? and the usual diet groups was -30 and +11 mmol/L/day. The relative risk of treatment failure for N a +? /K+? compared to usual diet by proportional hazards regression was 0.95 (P =.71). This study provides no support for the sole use of a low-sodium/high-potassium diet as a practical therapeutic strategy in maintaining blood pressure control in the moderately obese. Am J Hypertens 1994;7:926-932.
KW - Diet therapy
KW - Mild hypertension
KW - Pharmacologic therapy
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U2 - 10.1093/ajh/7.10.926
DO - 10.1093/ajh/7.10.926
M3 - Article
C2 - 7826557
AN - SCOPUS:0028080217
SN - 0895-7061
VL - 7
SP - 926
EP - 932
JO - American journal of hypertension
JF - American journal of hypertension
IS - 10
ER -