Activate Now
 
ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

Decreased levels of vitamin D associated with reduced methylation in African American teens

Sweep Away Senile Cells

PAIN'S SECRET MESSAGE: Why Prince Didn't Need to Die

8 Hacks to Slash Medication Costs

7 Natural Ways to Prevent Diabetes

New Study Shows Optimized Curcumin Stops Inflammation

Relief from Common Digestive Distress

What Foods Can Help Fight the Risk of Chronic Inflammation?

Block The Vascular Origins Of Cognitive Decline

SURVEY: Should Opioids Be Restricted for Chronic Illness?

 
Print Page
Email Article

Effects of Time Frame on the Recall Reliability of CFS Symptoms

  [ 3 votes ]   [ Discuss This Article ]
By M Evans and LA Jason • www.ProHealth.com • October 25, 2013


Editor's Comment: Meredyth Evans wrote her Master's thesis on the reliability of questionnaires for patients with ME/CFS, specifically addressing how this method is applied in the "empirical" case definition for diagnosing the illness. The empirical case definition expands the Fukuda case definition by including questionnaires as assessment tools. As Evans discussed in her thesis, a person's recall of the severity of symptoms she or he has experienced is influenced by a variety of factors, including whether the symptoms have been consistent. 

Although this study does not rule out the validity of questionnaires for supporting a case definition, it does examine some of the pitfalls of using time frames to assess symptoms. Evans discovered that the more stable a symptom was, the easier it was to remember. Waxing and waning symptoms are one of the key features of this illness, especially during acute phases, which means patients might have greater problems with recall if they are in relapse. However, two of the Fukuda definition symptoms that Evans explored - sore throat and cognitive problems - did not fit into this model. "It is possible," she says, "that this impact on reliability is due to the fact that people are having difficulty concentrating on what the question is asking them; thus having difficulty reliably recalling their concentration problems..."

Evans concluded that time frame, symptom stability, and momentary severity do appear to influence reliability in reporting ME/CFS symptoms.These factors must be taken into account, because "[a]ccurate and reliable assessment is a crucial first step in understanding and treating this debilitating and often misunderstood illness."

To read the full text of "Effects of Time Frame on the Recall Reliability of CFS Symptoms" click HERE.

By M. Evans and L.A. Jason

Abstract

This study serves as an investigation of the reliability of symptom data as reported by individuals with chronic fatigue syndrome (CFS), across three recall time frames (the past week, the past month, and the past 6 months), and at two assessment points (with 1 week in between each assessment). Multilevel model analyses were used to determine the optimal recall time frame, in terms of test -retest reliability, for each of the Fukuda et al. (1994) case defining symptoms.

Results suggested that the optimal time frame for reliably reporting CFS symptoms was six months for sore throat, lymph node pain, muscle pain, post-exertional malaise, headaches, memory/concentration difficulties, and unrefreshing sleep. For joint pain, the optimal time frame was one month.

Researchers who are interested in the assessment of CFS symptoms need to take recall time frame into account, especially when the intended goal is to standardize and improve the methods used to reliably and accurately diagnose this complex illness.

Source: Eval Health Prof. 2013 Sep 23. [Epub ahead of print]. Evans M, Jason LA.





Post a Comment

Featured Products From the ProHealth Store
Optimized Curcumin Longvida® FibroSleep™ Ultra ATP+, Double Strength

Looking for Vitamins, Herbs and Supplements?
Search the ProHealth Store for Hundreds of Natural Health Products


Article Comments



Be the first to comment on this article!

Post a Comment


 
20 Helpful Tips for Cleaning and Organizing When You're Chronically Ill

Featured Products

Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength

Natural Remedies

Health Benefits Are Brewing in Green Tea Health Benefits Are Brewing in Green Tea
The Brain Boosting and Fatigue Fighting B-12 The Brain Boosting and Fatigue Fighting B-12
Magnesium: An Essential Supplement for ME/CFS Magnesium: An Essential Supplement for ME/CFS
Fighting Fatigue with Ground-breaking French Oak Wood Extract Fighting Fatigue with Ground-breaking French Oak Wood Extract
Reversing Neurodegeneration with a New Magnesium Compound Reversing Neurodegeneration with a New Magnesium Compound

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler

· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE AND SAVE 15% NOW*
Be the first to know about new products, special discounts and the latest health news. *New subscribers only

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map