Evidence map›Paper›PMID 28095797›Full record

ArticleBMC infectious diseases2017

Cocaine/crack use is not associated with fibrosis progression measured by AST-to-Platelet Ratio Index in HIV-HCV co-infected patients: a cohort study.

Valérie Martel-Laferrière, Roy Nitulescu, Joseph Cox, Curtis Cooper, Mark Tyndall, Danielle Rouleau, Sharon Walmsley, Leo Wong, Marina B Klein, Canadian Co-infection Cohort Study Investigators

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

6 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Disparities in uptake of direct-acting antiviral therapy for hepatitis C among people who inject drugs in a Canadian setting.Liver international : official journal of the International Association for the Study of the Liver · 2019
    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

10 authors at 5 institutions in 1 country.

Valérie Martel-LaferrièreCentre de Recherche du Centre hospitalier de l'Université de Montréal, 900 Saint-Denis, Montréal, Quebec, H2X 0A9, Canada. valerie.martel-laferriere@umontreal.ca.
Roy NitulescuMcGill University Health Centre, 1001 Decarie Blvd, Montreal, Quebec, H4A 3J1, Canada.
Joseph CoxMcGill University Health Centre, 1001 Decarie Blvd, Montreal, Quebec, H4A 3J1, Canada.
Curtis CooperOttawa Hospital Research Institute, 501 Smyth Rd, Ottawa, Ontario, K1H 8L6, Canada.
Mark TyndallUniversity of British Columbia, 2775 Laurel Street, 10th Floor, Vancouver, British Columbia, V5Z 1M9, Canada.
Danielle RouleauCentre de Recherche du Centre hospitalier de l'Université de Montréal, 900 Saint-Denis, Montréal, Quebec, H2X 0A9, Canada.
Sharon WalmsleyUniversity Health Network, 101 College, Toronto, Ontario, M5G 1L7, Canada.
Leo WongMcGill University Health Centre, 1001 Decarie Blvd, Montreal, Quebec, H4A 3J1, Canada.
Marina B KleinMcGill University Health Centre, 1001 Decarie Blvd, Montreal, Quebec, H4A 3J1, Canada. marina.klein@mcgill.ca.
Canadian Co-infection Cohort Study Investigators
McGill University Health Centre · CAUniversity Health Network · CAUniversity of British Columbia · CACentre Hospitalier de l’Université de Montréal · CAOttawa Hospital · CA

Funding

CIHR MOP-79529
6 · The paper itself

Abstract

backgroundCocaine and crack use has been associated with HIV and HCV infections, but its consequences on HCV progression have not been well established. We analyzed the impact of cocaine/crack use on liver fibrosis progression in a cohort of HIV-HCV co-infected patients.

methodsA Canadian multicenter prospective cohort study followed 1238 HIV-HCV co-infected persons every 6 months between 2003 and 2013. Data were analyzed from 573 patients with positive HCV RNA, not on HCV treatment, without significant liver fibrosis (AST-to-Platelet Ratio Index (APRI) <1.5) or history of end-stage liver disease at baseline, and having at least two study visits. Recent cocaine/crack use was defined as use within 6 months of cohort entry. Incidence rates of progression to significant fibrosis (APRI ≥ 1.5) were determined according to recent cocaine/crack use. Cox Proportional Hazards models were used to assess the association between time-updated cocaine/crack use and progression to APRI ≥ 1.5 adjusting for age, sex, HCV duration, baseline ln(APRI), and time-updated alcohol abuse, history of other drug use and CD4+ cell count.

resultsAt baseline, 211 persons (37%) were recent cocaine/crack users and 501 (87%) ever used cocaine/crack. Recent users did not differ from non-recent users on gender, age, and CD4+ T-cell count. Over 1599 person-years of follow up (522 PY in recent users, 887 PY in previous users and 190 PY in never users),158 (28%) persons developed significant fibrosis (9.9/100 PY; 95% CI, 8.3-11.4); 56 (27%) recent users (10.7/100 PY; 7.9-13.5), 81 (28%) previous users (9.1/100 PY; 7.1-11.1), and 21 (29%) never users (11.1/100 PY; 6.3-15.8). There was no association between ever having used or time-updated cocaine/crack use and progression to APRI ≥ 1.5 (adjusted HR (95%CI): 0.96 (0.58, 1.57) and 0.88;(0.63-1.25), respectively).

conclusionsWe could not find evidence that cocaine/crack use is associated with progression to advanced liver fibrosis in our prospective study of HIV-HCV co-infected patients.

Indexed as

Crack CocainePlatelet CountAdultAlcoholismAnti-HIV AgentsAspartate AminotransferasesBlood PlateletsCanadaCD4 Lymphocyte CountCocaine-Related DisordersCohort StudiesCoinfectionComorbidityDisease ProgressionFemaleHepatitis C, ChronicAnti-HIV AgentsAspartate AminotransferasesCrack CocaineRNA, ViralAPRI scoreCocaineHIVLiver fibrosis

Identifiers

PMID28095797
PMCPMC5240225
OpenAlexW2576948130

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.