Evidence map›Paper›PMID 33609289›Full record

ArticleThe British journal of dermatology2021

Risk of skin cancer in new users of thiazides and thiazide-like diuretics: a cohort study using an active comparator group.

R Schneider, D Reinau, S Stoffel, S S Jick, C R Meier, J Spoendlin

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In one paragraph

Article in The British journal of dermatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Role of comorbidities and medication on immunotherapy efficacy in cSCC: A DeCOG multicentre analysis.Journal of the European Academy of Dermatology and Venereology : JEADV · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

R SchneiderBasel Pharmacoepidemiology Unit, Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.
D ReinauBasel Pharmacoepidemiology Unit, Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.
S StoffelBasel Pharmacoepidemiology Unit, Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.
S S JickBoston Collaborative Drug Surveillance Program, Lexington, MA, USA.
C R MeierBasel Pharmacoepidemiology Unit, Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.ORCID 0000-0002-7120-6378
J SpoendlinBasel Pharmacoepidemiology Unit, Division of Clinical Pharmacy and Epidemiology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.
University of Basel · CHBoston University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCase-control studies report a dose-dependent increased risk of skin cancer in users of hydrochlorothiazide (HCTZ) vs. nonusers. The degree to which other thiazides and thiazide-like diuretics (TZs) are associated with skin cancer is less certain.

objectivesTo assess the risk of skin cancer in new users of different TZs compared with new users of calcium channel blockers (CCBs).

methodsWe conducted a cohort study using a UK primary-care database (1998-2017), including 271 154 new TZ users [87·6% bendroflumethiazide (BFT), 5·8% indapamide and 3·6% HCTZ] and 275 263 CCB users. The outcomes were basal cell carcinoma (BCC), squamous cell carcinoma (SCC) and cutaneous malignant melanoma (CMM). We estimated incidence rates (IRs) and IR ratios (IRRs) in short-term (< 20 prescriptions) and long-term (≥ 20 prescriptions) users of TZs and CCBs using negative binomial regression, and calculated rate differences (RDs) for selected results. We used fine stratification on the propensity score (PS) to control for 23 baseline covariates.

resultsLong-term use of HCTZ increased absolute and relative risks of SCC [PS-weighted IRR 1·95; 95% confidence interval (CI) 1·87-2·02; RD per 100 000 person-years 87.4], but not of BCC or CMM. Long-term use of indapamide was associated with an increased incidence of CMM (IRR 1·43; 95% CI 1·35-1·50). BFT was not meaningfully associated with the risk of any type of skin cancer.

conclusionsOur results corroborate the previously reported increased risk of SCC (but not of BCC or CMM) for long-term use of HCTZ. BFT may be a safer alternative for patients at increased risk of skin cancer.

Indexed as

Basal Cell CarcinomaSkin NeoplasmsCohort StudiesDiureticsHumansThiazidesDiureticsThiazides

Identifiers

PMID33609289
OpenAlexW3133043209

What OpenQuestion holds

Textmetadata
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.