User Manual: Inquisit Leeds Assessment of Neuropathic Symptoms and Signs (LANNS Pain Scale)


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													*The LANSS Pain Scale*
									Leeds Assessment of Neuropathic Symptoms and Signs
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Script Author: Katja Borchert, Ph.D. (katjab@millisecond.com) for Millisecond Software, LLC
Date: 04-19-2021
last updated:  02-24-2022 by K. Borchert (katjab@millisecond.com) for Millisecond Software, LLC

Script Copyright © 02-24-2022 Millisecond Software

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BACKGROUND INFO 	
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This script implements The LANSS Pain Scale, a tool to identify patients in whom neuropathic mechanisms dominate
their pain experience.

Reference
Bennett M. The LANSS Pain Scale: the Leeds assessment of neuropathic symptoms and signs. 
Pain. 2001 May;92(1-2):147-57. 
doi: 10.1016/s0304-3959(00)00482-6. PMID: 11323136.
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OVERVIEW
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5 yes/no pain questionnaire questions as well as 2 yes/no sensory testing questions

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DURATION 
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the default set-up of the script takes appr. 5 minutes to complete

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DATA FILE INFORMATION 
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The default data stored in the data files are:

(1) Raw data file: 'lanss.iqdat'

date, time:							date and time script was run with the current group/subjectnumber 
subject, group, session:	  		with the current subject/groupnumber/session id
build:								the Inquisit build 

q*_response:						response given (in assigned values)
									Scale: yes/no
									pain questionnaire: q1, q2 (yes = 5); q3 (yes = 3), q4 (yes = 2), q5 (yes = 1).
									No = 0 points
									Sensory testing: q1 (yes = 5), q2 (yes = 2)
									No = 0 points
									
q*_latency:							how much time (in ms) the participant spent on the surveypage with this particular 
									question (the last time this particular surveypage was visited)


(2) Summary data file: 'lanss_summary.iqdat' (Inquisit Lab: one data file per participant)

inquisit.version:				Inquisit version run
computer.platform:				the platform the script was run on (win/mac/ios/android)
startdate:						date script was run
starttime:						time script was started
subjectid:						assigned subject id number
groupid:						assigned group id number
sessionid:						assigned session id number
elapsedtime:					time it took to run script (in ms); measured from onset to offset of script
completed:						0 = script was not completed (prematurely aborted); 
								1 = script was completed (all conditions run)

lanss_totalscore:				the sum of all individual responses (range: 0 - 24)		
								If score < 12, neuropathic mechanisms are UNLIKELY to be contributing to the patient's pain
								If score >= 12, neuropathic mechanisms are LIKELY to be contributing to the patient's pain
									
+ 7 individual questions									
pain questionnaire: q1, q2 (yes = 5); q3 (yes = 3), q4 (yes = 2), q5 (yes = 1).
No = 0 points
Sensory testing: q1 (yes = 5), q2 (yes = 2)
No = 0 points