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Beta-testing data analysis

NC Nananda Col
SH Stephen Hull
VS Vicky Springmann
LN Long Ngo
EM Ernie Merritt
SG Susan Gold
MS Michael Sprintz
NG Noel Genova
NN Noah Nesin
BT Brenda Tierman
FS Frank Sanfilippo
RE Richard Entel
LP Lori Pbert
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All data were directly entered by the patient into a Qualtrics database. Use of PainAPP pages was monitored via analysis of website log files. Mean time spent on different activities was computed after removing outliers that likely reflected break periods. We could not directly determine how much time participants spent on the control website because we did not have access to that website’s log file. Because of the small sample size, the limited scope of the beta-testing, and biases detected during beta-testing, limited statistical analyses were performed. Recruitment was ended before our initial target of 50 patients was achieved because of serious challenges discovered that prompted a reassessment of the study design. The initial target sample of 50 was estimated to provide an 80% chance of detecting a 20% improvement on the primary outcome COMRADE with a type-I error rate of 0.05 [67].

Copyright and License information: The Author(s) ©2020
Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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