Evidence map›Paper›PMID 23975036›Full record

ArticlePsychopharmacology2014

Lapses of attention as outcome measure of the on-the-road driving test.

Joris C Verster, Adriana C Bervoets, Suzanne de Klerk, Thomas Roth

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Article in Psychopharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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 synthesis or guideline pooled it.

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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.

Joris C VersterUtrecht Institute for Pharmaceutical Sciences, Division of Pharmacology, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands, j.c.verster@uu.nl.
Adriana C Bervoets
Suzanne de Klerk
Thomas Roth

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLapses are brief periods of inattention and reduced alertness which may be a risk factor for car crashes. The Dutch on-the-road driving test is applied to examine effects of CNS drugs on driving, using the standard deviation of lateral position (SDLP) as primary outcome measure. This paper examines the utility of an alternative outcome measure, lapses, to determine the degree to which CNS drugs impair driving.

methodsData from two double-blind, placebo-controlled on-the-road driving studies that examined the residual effects of hypnotic drugs were reanalyzed. The treatments were zaleplon and zolpidem tested 4 h after middle-of-the-night administration, and ramelteon and zopiclone tested 8.5 h after bedtime administration. In addition to SDLP, outcome measures related to lapses (number, total duration, and maximum deviation) were computed. A lapse was defined as a continuous change in lateral position of greater than 100 cm, lasting for at least 4 s.

resultsBoth SDLP and lapses were able to detect significant driving impairment after middle-of-the-night administration of zolpidem (10 and 20 mg) and bedtime administration of ramelteon (8 mg) and zopiclone (7.5 mg) relative to placebo. Both measures found no differences from placebo after middle-of-the-night administration of zaleplon (10 and 20 mg). The number of lapses was more sensitive in differentiating treatment from placebo than the maximum deviation of a lapse or their duration. After considering different lapse duration criteria, a lapse was redefined as a continuous change in lateral position of greater than 100 cm, lasting for at least 8 s. This change in definition did not significantly alter the outcome of the statistical analyses.

conclusionsIn addition to SDLP, the number of lapses is a useful outcome measure to identify treatments that impair driving. Future research should determine the unique contributions of SDLP and lapses in defining the potential risk of CNS drugs on driving.

Indexed as

AcetamidesAdultAttentionAutomobile Driver ExaminationAutomobile DrivingAzabicyclo CompoundsData Interpretation, StatisticalFemaleHumansHypnotics and SedativesIndenesMalePiperazinesPyridinesPyrimidinesSex CharacteristicsAcetamidesAzabicyclo CompoundsHypnotics and SedativesIndenesPiperazinesPyridinesPyrimidinesramelteonzaleplonZolpidemzopiclone

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Registered trials

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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.