The Test-retest Effect of the "d2 Test of Attention".

Cognition and Attention in Surgeons and Nurses Clinical Trial

Official title:

The Test-retest Effect of the "d2 Test of Attention" - a Test for Concentration and Performance.

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01791348
• Other study ID #: d2test_1234
• Status: Completed
• Phase: N/A
• First received: February 6, 2013
• Last updated: December 3, 2013
• Start date: March 2013
• Est. completion date: September 2013

Study information

• Verified date: December 2013
• Source: Herlev Hospital
• Contact: n/a
• Is FDA regulated: No
• Health authority: Denmark: Danish Dataprotection Agency
• Study type: Interventional

Clinical Trial Summary

The "d2 test of attention" has been used in studies regarding sleep deprivation due to night shifts in hospital staff, in order to determine whether sleep deprivation has an impact on performance. However, by repeating the test there appears to be a test-retest effect, as the participants improve when performing the test more than once. The aim of this study is to determine, whether the "d2 test of attention" has a test-retest effect.

Description:

20 surgeons and 20 surgical nurses will be included in this study. They will be asked, after thorough instruction, to perform the d2 test of attention after a designed schedule. The participants will on day 1 and 2 perform the test 3 times consecutively at intervals of 5 minutes. On day 3, 4 and 5 the test will be repeated only once. After the 5th day follows a 7-day-break. On day 13 the test will again be performed once.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 40
• Est. completion date: September 2013
• Est. primary completion date: September 2013
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 22 Years to 55 Years

Eligibility

Inclusion Criteria:

• Nurses and surgeons at the department of Surgery, Herlev hospital. Age 22-55 years.

Exclusion Criteria:

• Known sleep disturbances and attentional deficits, previous use of the d2 test of attention, use of central stimulating drugs

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label

Related Conditions & MeSH terms

• Cognition and Attention in Surgeons and Nurses

Intervention

Other:
• d2 test of attention

Locations

Country	Name	City	State
Denmark	Herlev Hospital, department of surgery	Herlev

Sponsors (1)

Lead Sponsor	Collaborator
Herlev Hospital

Country where clinical trial is conducted

Denmark, 

References & Publications (3)

Bates ME, Lemay EP Jr. The d2 Test of attention: construct validity and extensions in scoring techniques. J Int Neuropsychol Soc. 2004 May;10(3):392-400. — View Citation

Niu SF, Chu H, Chen CH, Chung MH, Chang YS, Liao YM, Chou KR. A comparison of the effects of fixed- and rotating-shift schedules on nursing staff attention levels: a randomized trial. Biol Res Nurs. 2013 Oct;15(4):443-50. doi: 10.1177/1099800412445907. Epub 2012 May 15. — View Citation

Schlosser K, Maschuw K, Kupietz E, Weyers P, Schneider R, Rothmund M, Hassan I, Bartsch DK. Call-associated acute fatigue in surgical residents--subjective perception or objective fact? A cross-sectional observational study to examine the influence of fatigue on surgical performance. World J Surg. 2012 Oct;36(10):2276-87. doi: 10.1007/s00268-012-1699-5. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Test score for the d2 test of attention		one year	No