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. Author manuscript; available in PMC: 2016 Feb 20.
Published in final edited form as: Health Psychol Behav Med. 2015 Feb 20;3(1):82–93. doi: 10.1080/21642850.2015.1014489

Table 2. Accuracy Using Multiple Thresholds for Top 10 Symptoms.

2,2 Threshold Individual Symptoms Accuracy
 Fatigue / Extreme tiredness 94.9%
 Minimum exercise makes you physically tired 89.8%
 Unrefreshing sleep 89.5%
 Physically drained / sick after mild activity 87.5%
 Next-day soreness after non-strenuous activities 86.6%
 Dead, heavy feeling after starting to exercise 85.9%
 Problems remembering things 83.4%
 Difficulty finding the right word to say or expressing thoughts 79.2%
 Muscle weakness 78.9%
 Can only focus on one thing at a time 78.0%
Dynamic Threshold Individual Symptoms Accuracy
 Fatigue / Extreme tiredness 95.5%
 Dead, heavy feeling after starting to exercise 88.2%
 Minimum exercise makes you physically tired 88.2%
 Physically drained / sick after mild activity 87.9%
 Next-day soreness after non-strenuous activities 87.5%
 Unrefreshing sleep 87.2%
 Problems remembering things 83.7%
 Muscle weakness 81.8%
 Difficulty finding the right word to say or expressing thoughts 80.5%
 Can only focus on one thing at a time 78.9%