Topic: Risk, prevention and care in population studies
Plain-language summary
The life expectancy of patients who have dementia and are initiated on dialysis in the United States has not been described in the medical literature. A retrospective cohort study was conducted of 272,024 Medicare/Medicaid primary patients in the US Renal Data System who were started on ESRD therapy between April 1, 1995, and December 31, 1999, and followed through December 31, 2001. Cox regression was used to calculate adjusted hazard ratios for risk for death after initiation of dialysis for patients whose dementia was diagnosed before the initiation of dialysis as shown by Medicare claims. The average time to death for patients with dementia was 1.09 versus 2.7 yr (P < 0.001) with an adjusted hazard ratio of 1.87 (95% confidence interval 1.77 to 1.98). The 2-yr survival for patients with dementia was 24 versus 66% for patients without dementia (P < 0.001 via log rank test). Dementia that is diagnosed before initiation on dialysis is an independent risk factor for subsequent death. Such patients should be considered for time-limited trials of dialysis and careful discussion in choosing whether to pursue initiation of dialysis or palliative care.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Rakowski, D. A., Caillard, S., Agodoa, L. Y., & Abbott, K. C. (2006). Dementia as a predictor of mortality in dialysis patients. Clinical journal of the American Society of Nephrology : CJASN. https://doi.org/10.2215/cjn.00470705
Vancouver
Rakowski DA, Caillard S, Agodoa LY, Abbott KC. Dementia as a predictor of mortality in dialysis patients. Clinical journal of the American Society of Nephrology : CJASN. 2006. doi:10.2215/cjn.00470705. PMID: 17699319.
BibTeX
@article{rakowski2006-17699319,
author = {Rakowski, D. A. and Caillard, S. and Agodoa, L. Y. and Abbott, K. C.},
title = {{Dementia as a predictor of mortality in dialysis patients}},
journal = {Clinical journal of the American Society of Nephrology : CJASN},
year = {2006},
doi = {10.2215/cjn.00470705},
pmid = {17699319},
url = {https://doi.org/10.2215/cjn.00470705}
}
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Key findings
- The average time to death for patients with dementia was 1.09 versus 2.7 yr (P < 0.001) with an adjusted hazard ratio of 1.87 (95% confidence interval 1.77 to 1.98).
- The 2-yr survival for patients with dementia was 24 versus 66% for patients without dementia (P < 0.001 via log rank test).
Study details
- Study designcohort study
- Evidence strengthModerate
How this study scored 52/100
Published in a peer-reviewed journal, and it is a cohort study following people over time. Scored zero for sample size, effect reported, studied in people and randomized / blinded because the record does not state it. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multicenter collaboration, so those were left out: it earned 30 of the 58 points we could judge it on, which is 52 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Clinical journal of the American Society of Nephrology : CJASN) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| Study design | 7 / 12 | A cohort study following people over time |
| Strength of evidence | 3 / 5 | Rated “moderate” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2006 — older than 20 years, still counted |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomized / blinded | 0 / 2 | No randomization or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multicenter collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 17699319) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 30 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 30 of the 58 points we could judge it on is 52 out of 100. |
| Total | 52 / 100 | — |
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