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

15 Health Benefits of Chia Seeds, According to Science

Natural Remedies for the Prevention of Dry Eyes

Tangerine Oil: A Citrusy Essential Oil With Well-Rounded Uses

Magnesium Deficiency Raises Your Risk of Many Chronic Ailments

Resveratrol supplementation improves arterial stiffness in type 2 diabetics

What Makes Spanish Marjoram Oil Special?

CoQ10's Potential Capabilities for Your Health

How Can Melatonin Benefit You?

Cloves: Boost Your Immune System the Sweet and Spicy Way

8 Chia Seed Recipes

 
Print Page
Email Article

The Chronic Fatigue Twin Registry: method of construction, composition, and zygosity assignment.

  [ 37 votes ]   [ Discuss This Article ]
By Buchwald D, Herrell R, Ashton S, Belcourt M, Schmaling K, Goldberg J • www.ProHealth.com • September 1, 1999


Chronic fatigue syndrome (CFS) and the symptom of chronic fatigue are conditions of unknown etiology. The Centers for Disease Control and Prevention(CDC) define CFS as an illness characterized by > or = 6 months of disabling fatigue associated with muscle pain, pharyngitis, and alterations in mood, sleep and neuro-cognition. We constructed a registry of twins with chronic fatigue to facilitate research on the impact of illness, the associated medical and psychosocial factors, and the heterogeneous proposed mechanisms for these conditions. We have recruited 204 twin pairs in which one or both members reported persistent fatigue through patient support group newsletters (60%), clinicians/researchers familiar with CFS (12%), notices placed on electronic bulletin boards for CFS (11%), twin organizations and researchers (6%),relatives and friends (3%) and other sources (8%). Complete data is available for 177 pairs (87%). Twins completed an extensive questionnaire booklet that included measures of physical and mental health, functional status, and psychosocial factors; a structured psychiatric interview was also conducted by telephone. Twins were classified using three increasingly more stringent diagnostic criteria for chronic fatigue: 1) > or = 6 months of fatigue (115 discordant and 61 concordant pairs); 2) chronic fatigue with additionalsymptoms and application of the medial exclusions of the CDC CFS casedefinition as obtained by self-report (92 discordant and 41 concordant pairs)and 3) chronic fatigue with additional symptoms unexplained by self-reported medical conditions and psychiatric diagnoses as determined by the structured interview (69 discordant pairs and 25 concordant pairs). Despite the limitations of a volunteer registry, the Chronic Fatigue Twin Registry promises to be an important resource for research on CFS and chronic fatigue.

Source:
Twin Res 1999 Sep;2(3):203-11.
Department of Medicine, University of Washington, Seattle, USA.

PMID: 10555131, UI: 20021602




Post a Comment

Featured Products From the ProHealth Store
Vitamin D3 Extreme™ Ultra ATP+, Double Strength FibroSleep™


Article Comments



Be the first to comment on this article!

Post a Comment


 
Optimized Curcumin Longvida with Omega-3

Featured Products

FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
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
Ultra ATP+, Double Strength Ultra ATP+, Double Strength
Get energized with malic acid & magnesium

Natural Remedies

Improve Cardiovascular and Metabolic Health with Omega-7 Improve Cardiovascular and Metabolic Health with Omega-7
Safely Burn Away Body Fat Safely Burn Away Body Fat
Soothe, Heal and Regulate Your Digestive System with Nutrient-Rich Aloe Vera Soothe, Heal and Regulate Your Digestive System with Nutrient-Rich Aloe Vera
Running on Empty? Fuel Up with NADH Running on Empty? Fuel Up with NADH
Astaxanthin - A Little-Known but Power-Packed Nutrient Astaxanthin - A Little-Known but Power-Packed Nutrient

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

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

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

© 2017 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map