CoChat
Sign Up
Cited by 855Sodium Intake and HealthBlood Pressure and Hypertension StudiesNutritional Studies and Diet

The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.

Intersalt revisited: further analyses of 24 hour sodium excretion and blood pressure within and across populations

Open access
Elliott, Paul, Stamler, Jeremiah, Nichols, Rob, Dyer, Alan R, Stamler, Rose, Kesteloot, Hugo, Marmot, Michael·1996·BMJ
DOI 10.1136/bmj.312.7041.1249PMC PMC2351086
Open this paper in CoChat — free account

Abstract

Objectives : To assess further the relation in Intersalt of 24 hour urinary sodium to blood pressure of individuals and populations, and the difference in blood pressure from young adulthood into middle age. Design : Standardised cross sectional study within and across populations. Setting : 52 population samples in 32 countries. Subjects : 10 074 men and women aged 20-59. Main outcome measures : Association of sodium and blood pressure from within population and cross population multiple linear regression analyses with multivariate correction for regression dilution bias. Relation of sample median daily urinary sodium excretion to difference in blood pressure with age. Results : In within population analyses (n=10 074), individual 24 hour urinary sodium excretion higher by 100 mmol (for example, 170 v 70 mmol) was associated with systolic/diastolic blood pressure higher on average by 3/0 to 6/3 mm Hg (with and without body mass in analyses). Associations were larger at ages 40-59. In cross population analyses (n=52), sample median 24 hour sodium excretion higher by 100 mmol was associated with median systolic/diastolic pressure higher on average by 5-7/2-4 mm Hg, and estimated mean difference in systolic/diastolic pressure at age 55 compared with age 25 greater by 10-11/6 mm Hg. Conclusions : The strong, positive association of urinary sodium with systolic pressure of individuals concurs with Intersalt cross population findings and results of other studies. Higher urinary sodium is also associated with substantially greater differences in blood pressure in middle age compared with young adulthood. These results support recommendations for reduction of high salt intake in populations for prevention and control of adverse blood pressure levels. Key messages: The within population findings were previously underestimated because of incomplete correction for the regression dilution problem Revised estimates of the within population association of sodium to blood pressure in Intersalt are concordant with the cross population findings for 52 samples Estimates of the effect of median sodium excretion higher by 100 mmol/day over a 30 year period (age 55 minus age 25) were a greater difference of 10-11 mm Hg in systolic blood pressure and 6 mm Hg in diastolic blood pressure These results lend further support to recommendations for mass reduction of high salt intake for the prevention and control of adverse blood pressure levels and high blood pressure in populations

Overview

Integrity signals

Registry

Crossref · 10.1136/bmj.312.7041.1249

Cites

37 of 37 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Verification

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Citations

Cites

Show all 36 references

Research works printed but not linked: 6

  1. Cutler, 1991, An overview of randomised trials of sodium reduction and blood pressure, Hypertension, 17, 27, 10.1161/01.HYP.17.1_Suppl.I27 · DOI
  2. National Research Council, Committee on Diet and Health, Food and Nutrition Board, Commission on Life Sciences . Diet and health: implications for reducing chronic disease. 15. Electrolytes. Washington, DC Diet and health: implications for reducing chronic disease. 15. Electrolytes: National Academy Press, 1989: 413–30.
  3. Dyer, 1989, The Intersalt study: relations of body mass index to blood pressure, J Hum Hypertens, 3, 299
  4. Elliott, 1989, The Intersalt study: results for 24 hour sodium and potassium, by age and sex, J Hum Hypertens, 3, 323
  5. Dennis, 1995, Public health policy and salt: doing the right thing, Perspect Applied Nutr, 3, 121
  6. Department of Health. Nutritional aspects of cardiovascular disease . Report of the Cardiovascular Review Group, Committee on Medical Aspects of Food Policy. London: HMSO, 1994. (Report on health and social subjects 46.)

Cited by

Sorted by citations

See all 855

Related

Metadata

Authors
Elliott, P., Stamler, J., Nichols, R., Dyer, A. R., Stamler, R., Kesteloot, H., & Marmot, M.
Affiliations
  • Imperial College London (GB)
  • General Department of Preventive Medicine (VN)
  • Northwestern University (US)
  • KU Leuven (BE)
  • University College London (GB)
Corresponding author
Elliott, Paul
ORCID
Venue
BMJ
Publisher
BMJ
Published
1996-05-18
Volume
312
Issue
7041
Pages
1249-1253
ISSN
  • 0007-1447 (ISSN-L)
  • 0959-8138
  • 1468-5833
DOI
10.1136/bmj.312.7041.1249
PMC
PMC2351086
OpenAlex
W1639251217
Cited by
855
References
36
Citations by year
2026: 7 · 2025: 10 · 2024: 18 · 2023: 23 · 2022: 24 · 2021: 27 · 2020: 35 · 2019: 36 · 2018: 18 · 2017: 35 · 2016: 42 · 2015: 43 · 2014: 37 · 2013: 42 · 2012: 38
FWCI
31.32
Type
journal article
Language
en
Open access
Licence
www.bmj.com/company/legal-information/terms-conditions/legal-information/tdm-licencepolicy (tdm)
Locations
  • BMJ (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Wellcome Trust
  • National Research Foundation
  • National Heart, Lung, and Blood Institute
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
sodium excretion, 24-hour urine sodium, blood pressure, systolic blood pressure, diastolic blood pressure, salt intake, regression dilution bias, INTERSALT, age-related blood pressure changes, middle age (human life stage), salt reduction, hypertension prevention, cross-population comparison, body mass
MeSH terms
Adult, Aging, Blood Pressure, Circadian Rhythm, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Population Surveillance, Regression Analysis, Sodium, Sodium, Dietary, Body Mass Index, Multivariate Analysis, Nutrition Policy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review