Evidence map›Paper›PMID 30776875›Full record

ArticleKidney research and clinical practice2019

Time-varying effects of body mass index on mortality among hemodialysis patients: Results from a nationwide Korean registry.

Sejoong Kim, Jong Cheol Jeong, Shin Young Ahn, Kibbeum Doh, Dong-Chan Jin, Ki Young Na

Abstract read
In one paragraph

Article in Kidney research and clinical practice, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Observational
  14. Article
  15. Article
  16. 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

6 authors.

Sejoong KimDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
Jong Cheol JeongDepartment of Nephrology, Ajou University School of Medicine, Suwon, Korea.
Shin Young AhnDivision of Nephrology, Department of Internal Medicine, Korea University Guro Hospital, Korea University Medical Center, Seoul, Korea.
Kibbeum DohMedical Research Collaborating Center, Seoul National University Bundang Hospital, Seongnam, Korea.
Dong-Chan JinDepartment of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Ki Young NaDepartment of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.ORCID http://orcid.org/0000-0002-8872-8236

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnlike patterns observed in the general population, obesity is associated with better survival among hemodialysis patients, which could be explained by reverse causation or illness-related weight loss. However, the time-varying effect of body mass index (BMI) on hemodialysis survival has not been investigated. Therefore, this study investigated the time-varying effect of BMI on mortality after starting hemodialysis.

methodsIn the present study, we examined Korean Society of Nephrology data from 16,069 adult patients who started hemodialysis during or after the year 2000. Complete survival data were obtained from Statistics Korea. Survival analysis was performed using Cox regression and a non-proportional hazard fractional polynomial model.

resultsDuring the median follow-up of 8.6 years, 9,272 patients (57.7%) died. Compared to individuals with normal BMI (18.5-24.9 kg/m

conclusionThe obese hemodialysis group had better survival during the early post-dialysis period, although the beneficial effect of obesity disappeared 7 years after starting hemodialysis. The young obese group also had an increased mortality HR after 7 years.

Indexed as

Body mass indexObesityRenal dialysisReverse causationTime-varying hazard

Identifiers

PMID30776875
PMCPMC6488102

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.