Evidence map›Paper›PMID 25479916›Full record

ArticleDrug and alcohol dependence2015

Methamphetamine/amphetamine abuse and risk of Parkinson's disease in Utah: a population-based assessment.

Karen Curtin, Annette E Fleckenstein, Reid J Robison, Michael J Crookston, Ken R Smith, Glen R Hanson

Open access · greenAbstract read
In one paragraph

Article in Drug and alcohol dependence, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 2 pooled it
11.5field-weighted citation impact, top 1% 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

96 citing papers in PubMed, 2 syntheses or guidelines pooled it, 179 citations in OpenAlex.

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36 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Karen CurtinDepartment of Internal Medicine, University of Utah, Salt Lake City, UT 84112, United States; Population Sciences, Huntsman Cancer Institute, Salt Lake City, UT 84112, United States. Electronic address: karen.curtin@hsc.utah.edu.
Annette E FleckensteinDepartment of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT 84112, United States; School of Dentistry, University of Utah, Salt Lake City, UT 84112, United States.
Reid J RobisonIntermountain Healthcare, Salt Lake City, UT 84111, United States; Utah Foundation for Biomedical Research, Provo, UT 84601, United States.
Michael J CrookstonIntermountain Healthcare, Salt Lake City, UT 84111, United States.
Ken R SmithPopulation Sciences, Huntsman Cancer Institute, Salt Lake City, UT 84112, United States; Department of Family and Consumer Studies, University of Utah, Salt Lake City, UT 84112, United States.
Glen R HansonDepartment of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT 84112, United States; School of Dentistry, University of Utah, Salt Lake City, UT 84112, United States.
University of Utah · USIntermountain Healthcare · US

Funding

Role of Neurotensin Systems in Methamphetamine Self AdministrationR01DA031883 · NIDA · UNIVERSITY OF UTAH · PI HANSON, GLEN R · 2012 to 2016
$1.5M
NCI NIH HHS P30 CA2014NIDA NIH HHS R01 DA031883
6 · The paper itself

Abstract

backgroundDespite widespread use of methamphetamine and other amphetamine-type stimulants (METH/AMPH), little is known about the long-term medical consequences of METH/AMPH abuse and dependence. Preclinical neurotoxicity findings raise public health concerns that these stimulants may damage dopamine neurons, resulting in dopamine-related disorders such as Parkinson's disease (PD).

methodsA retrospective design was used to examine statewide medical records (1996 through 2011) linked to the Utah Population Database. Individuals 30 years or older on December 31, 2011 were assigned to a METH/AMPH cohort (ICD-9-CM 304.4, 305.7, 969.7, E854.2; N=4935), a cocaine cohort (ICD-9-CM 304.2, 305.6, 968.5, E855.2; N=1867) or a population cohort unexposed to drugs or alcohol for control selection. A competing-risks, proportional hazards model was used to determine whether the METH/AMPH or cocaine cohorts were at increased risk of developing PD (ICD-9-CM 332.0) or PD/parkinsonism/essential tremor (PD/PT; ICD-9-CM 332.0, 332.1, 333.0, 333.1) compared to individually sex- and age-matched controls (5:1 control to case ratio; N=34,010).

resultsIn METH/AMPH users, we observed an increased risk of PD and PD/PT (HRPD=2.8, 95%CI 1.6-4.8, P<10(-3); HRPD/PT=3.1, 95%CI 1.9-4.9, P<10(-4)) compared to population-based controls. Conversely, cocaine users exhibited no elevated risk of PD compared to controls.

conclusionsWe observed a near three-fold increased risk of PD in METH/AMPH users vs. controls which confirms prior observations and supports that PD risk in users may be higher than previous estimates. A suggestion that female and male users may differ in PD susceptibility warrants further study.

Indexed as

AdultAgedAmphetamine-Related DisordersCocaine-Related DisordersComorbidityFemaleHumansMaleMiddle AgedParkinson DiseaseProportional Hazards ModelsRetrospective StudiesRisk FactorsUtahAmphetamineCocaineDopamineDrug abuseMethamphetamineParkinson's disease

Identifiers

PMID25479916
PMCPMC4295903
OpenAlexW2142896446

What OpenQuestion holds

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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.