Evidence map›Paper›PMID 34959995›Full record

ArticleNutrients2021

Association of Urinary Potassium Excretion with Blood Pressure Variability and Cardiovascular Outcomes in Patients with Pre-Dialysis Chronic Kidney Disease.

Sang Heon Suh, Su Hyun Song, Tae Ryom Oh, Hong Sang Choi, Chang Seong Kim, Eun Hui Bae, Kook-Hwan Oh, Joongyub Lee, Seung Hyeok Han, Yeong Hoon Kim and 4 more

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.7field-weighted citation impact, top 32% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 10 citations in OpenAlex.

  1. Trial
  2. Serum Metabolomic Markers of Dietary Potassium and Risk of CKD.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Article
  3. Review
  4. Chronic kidney disease increases the susceptibility to negative effects of low and high potassium intake.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2024
    Article
  5. Article
  6. Article
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 6 institutions in 1 country.

Sang Heon SuhDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.
Su Hyun SongDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.ORCID 0000-0003-3510-8655
Tae Ryom OhDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.ORCID 0000-0002-3713-0939
Hong Sang ChoiDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.ORCID 0000-0001-8191-4071
Chang Seong KimDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.ORCID 0000-0001-8753-7641
Eun Hui BaeDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.
Kook-Hwan OhDepartment of Internal Medicine, Seoul National University Hospital, Seoul 06591, Korea.ORCID 0000-0001-9525-2179
Joongyub LeeDepartment of Prevention and Management, School of Medicine, Inha University, Incheon 22212, Korea.
Seung Hyeok HanDepartment of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul 03722, Korea.ORCID 0000-0001-7923-5635
Yeong Hoon KimDepartment of Nephrology, College of Medicine, Inje University, Busan 47392, Korea.
Dong-Wan ChaeDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seongnam 13620, Korea.
Seong Kwon MaDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.
Soo Wan KimDepartment of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju 61496, Korea.ORCID 0000-0002-3540-9004
On Behalf Of The Korean Cohort Study For Outcomes In Patients With Chronic Kidney Disease Know-Ckd Investigators
Chonnam National University Hospital · KRInha University · KRInje University · KRSeoul National University Bundang Hospital · KRSeoul National University Hospital · KRYonsei University · KR

Funding

Chonnam National University Hospital Biomedical Research Institute BCRI20062the Korea Health Technology R&D Project through the Korea Health Industry Development In-stitute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea HR20C0021the Research Program funded by the Korea Centers for Disease Control and Prevention 2011E3300300, 2012E3301100, 2013E3301600, 2013E3301601, 2013E3301602, 2016E3300200, 2016E3300201, 2016E3300202, and 2019E320100
6 · The paper itself

Abstract

Dietary potassium intake is a dilemma in patients with chronic kidney disease (CKD). We investigated the association of urine potassium excretion, a surrogate for dietary potassium intake, with blood pressure variability (BPV) and cardiovascular (CV) outcomes in patients with pre-dialysis CKD. A total of 1860 participants from a cohort of pre-dialysis CKD (KNOW-CKD) patients were divided into the quartiles by spot urine potassium-to-creatinine ratio. The first quartile (26.423 ± 5.731 mmol/gCr) was defined as low urine potassium excretion. Multivariate linear regression analyses revealed an independent association of low urine potassium excretion with high BPV (adjusted β coefficient 1.163, 95% confidence interval 0.424 to 1.901). Cox regression analyses demonstrated that, compared to high urine potassium excretion, low urine potassium excretion is associated with increased risk of CV events (adjusted hazard ratio 2.502, 95% confidence interval 1.162 to 5.387) but not with all-cause mortality. In conclusion, low urine potassium excretion is associated with high BPV and increased risk of CV events in patients with pre-dialysis CKD. The restriction of dietary potassium intake should be individualized in patients with pre-dialysis CKD.

Indexed as

Blood PressureAdultAgedCardiovascular DiseasesCohort StudiesCreatinineDialysisFemaleHumansHypertensionMaleMiddle AgedPotassiumProspective StudiesRenal Insufficiency, ChronicRisk FactorsCreatininePotassiumSodiumblood pressure variabilitychronic kidney diseasedietary potassium intakeextended major cardiovascular eventurine potassium

Identifiers

PMID34959995
PMCPMC8706671
OpenAlexW4200075641

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.