Evidence map›Paper›PMID 9101691›Full record

Trial reportThe British journal of general practice : the journal of the Royal College of General Practitioners1997

The effect of cash and other financial inducements on the response rate of general practitioners in a national postal study.

A Deehan, L Templeton, C Taylor, C Drummond, J Strang

Abstract readClinical TrialControlled Clinical Trial
In one paragraph

Trial report in The British journal of general practice : the journal of the Royal College of General Practitioners, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 4 pooled it
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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

27 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Methods to increase response to postal and electronic questionnaires.The Cochrane database of systematic reviews · 2023
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  4. Methods to increase response to postal and electronic questionnaires.The Cochrane database of systematic reviews · 2009
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

A DeehanNational Addiction Centre, London.
L Templeton
C Taylor
C Drummond
J Strang

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLow response rates are acknowledged as a potential source of bias in survey results. Response rates are a particular problem in surveys of GPs. Thus, the methods used to encourage response to mailed surveys and the influence of inducements in maximizing response rates are fundamental issues to be examined when addressing the problem of response bias.

aimTo increase the overall response rate to a national study of GPs and to explore the effects of financial and non-financial inducements on response rates.

methodsTwo mailing waves of a postal questionnaire to a 20% random sample of all GPs in England and Wales had achieved a 33% response rate. For the third mailing wave, the non-responding GPs were then divided into a control group, a group who were offered a donation to charity to complete the questionnaire and a group who were offered cash. The charity and cash groups were further subdivided into 5 pounds and 10 pounds groups to assess the effect of the size of the inducement offered. For the control group, a fourth wave was sent the offer of a 5 pounds or 10 pounds incentive.

resultsResponse was positively affected by the offer of an inducement. Cash, however, had a more substantial effect than the offer of a donation to charity. Older GPs were less likely to participate overall, whereas male GPs were more likely to respond to a cash inducement. Doctors who had seen more patients were less likely to reply earlier and were more likely to respond to the offer of cash.

conclusionsPrimary care is going through many changes, some of which have increased the workload of the GP. It may now be that, to achieve the response rates needed to validate policy-related research, the offer of inducements will become a necessary part of the research process.

Indexed as

AdultAlcoholismData CollectionFamily PracticeFemaleHumansLondonMaleMiddle AgedMotivationResearch

Identifiers

PMID9101691
PMCPMC1312912

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.