Evidence map›Paper›PMID 25395974›Full record

ArticlePsychiatry investigation2014

Altitude may contribute to regional variation in methamphetamine use in the United States: a population database study.

Tae-Suk Kim, Douglas G Kondo, Namkug Kim, Perry F Renshaw

Abstract read
In one paragraph

Article in Psychiatry investigation, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Review
  3. Exploring the Link between Altitude of Residence and Smoking Patterns in the United States.International journal of environmental research and public health · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Effect of Altitude on Veteran Suicide Rates.High altitude medicine & biology · 2019
    Article
  10. 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

4 authors.

Tae-Suk KimThe Brain Institute, University of Utah, Salt Lake City, UT, USA. ; Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA. ; Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea.
Douglas G KondoThe Brain Institute, University of Utah, Salt Lake City, UT, USA. ; Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA. ; VISN 19 MIRECC, Salt Lake City Veterans Affairs Health Care System, Salt Lake City, UT, USA.
Namkug KimDepartment of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Perry F RenshawThe Brain Institute, University of Utah, Salt Lake City, UT, USA. ; Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA. ; VISN 19 MIRECC, Salt Lake City Veterans Affairs Health Care System, Salt Lake City, UT, USA.

Funding

Mentoring in Drug Abuse NeuroimagingK05DA031247 · NIDA · UNIVERSITY OF UTAH · PI RENSHAW, PERRY FRANKLIN · 2011 to 2015
$661k
NIDA NIH HHS K05 DA031247
6 · The paper itself

Abstract

objectiveMethamphetamine (MA) use rates in the United States (US) have consistently demonstrated geographical variation and have been higher in the West and Midwest. This uneven pattern of use could be explained by regional differences in MA manufacturing and distribution, but may also result from differences in altitude. The hypobaric hypoxia found at high altitude alters neurotransmitter synthesis in the brain, which may contribute to MA use. The present study investigated the relationship between mean altitude and MA use rate in the 48 contiguous US states and the District of Columbia.

methodsState-level estimates of past year MA use were extracted from the National Survey on Drug Use and Health report. The mean altitude of each state was calculated using the Shuttle Radar Topography Mission altitude data set.

resultsThere was a significant positive correlation between mean state altitude and MA use rate (r=0.66, p<0.0001). Multivariate linear regression analysis showed that altitude remained a significant predictor for MA use rate (β=0.36, p=0.02), after adjusting for age, ethnicity, education, socioeconomic level, employment, MA laboratory incidents, subpopulations, and other substance use.

conclusionAltitude appears to a possible contributing factor for regional variation of MA use in the US. Further studies will be required to determine biological changes in neurotransmission resulting from chronic mild hypoxia at high altitude in MA users.

Indexed as

AltitudeElevationHypoxiaMethamphetamineNeurotransmission

Identifiers

PMID25395974
PMCPMC4225207

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.