Activate Now
ProHealth fibromyalgia 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

Do You Have These Fibromyalgia Symptoms of Systemic Dysfunction?

Fibromyalgia Is Finally Recognized as an Official Diagnosis!

Meet Devin Starlanyl: Fibromyalgia and Chronic Myofascial Pain Expert

The Fibromyalgia – Negativity Connection

Which Infection Causes CFS & Fibromyalgia?

Simplifying Nutritional Support in CFS & Fibromyalgia

Exercise: Friend or Foe in Fibromyalgia?

6 Reasons Why Trigger Point Injections Aren't Helping Your Fibromyalgia

Is Your Body Your Friend and Healing Ally?

VIDEO: Fibromyalgia & Your Stress-Coping Savings Account

Print Page
Email Article

Study Identifies 3 Fibromyalgia Subgroups

  [ 11 votes ]   [ Discuss This Article ] • October 15, 2013

Note: You may read the full text of this article free HERE.

Cluster Analysis of Clinical Data Identifies Fibromyalgia Subgroups.

By Elisa Docampo, et al.


INTRODUCTION: Fibromyalgia (FM) is mainly characterized by widespread pain and multiple accompanying symptoms, which hinder FM assessment and management. In order to reduce FM heterogeneity we classified clinical data into simplified dimensions that were used to define FM subgroups.

MATERIAL AND METHODS: 48 variables were evaluated in 1,446 Spanish FM cases fulfilling 1990 ACR FM criteria. A partitioning analysis was performed to find groups of variables similar to each other. Similarities between variables were identified and the variables were grouped into dimensions. This was performed in a subset of 559 patients, and cross-validated in the remaining 887 patients. For each sample and dimension, a composite index was obtained based on the weights of the variables included in the dimension. Finally, a clustering procedure was applied to the indexes, resulting in FM subgroups.

RESULTS: VARIABLES CLUSTERED INTO THREE INDEPENDENT DIMENSIONS: "symptomatology", "comorbidities" and "clinical scales". Only the two first dimensions were considered for the construction of FM subgroups. Resulting scores classified FM samples into three subgroups:

  • low symptomatology and comorbidities (Cluster 1),

  • high symptomatology and comorbidities (Cluster 2), and

  • high symptomatology but low comorbidities (Cluster 3), showing differences in measures of disease severity.

CONCLUSIONS: We have identified three subgroups of FM samples in a large cohort of FM by clustering clinical data. Our analysis stresses the importance of family and personal history of FM comorbidities. Also, the resulting patient clusters could indicate different forms of the disease, relevant to future research, and might have an impact on clinical assessment.

Source: PloS One, September 30, 2013. By Elisa Docampo, Antonio Colladol, Geòrgia Escaramís, Jordi Carbonell, Javier Rivera, Javier Vidal, José Alegre, Raquel Rabionet and Xavier Estivill. Genomics and Disease Group, Centre for Genomic Regulation (CRG), Barcelona, Spain ; Universitat Pompeu Fabra (UPF), Barcelona, Spain ; Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.

Please Discuss This Article:   Post a Comment 

[ Be the first to comment on this article ]

Free Chronic Fatigue Syndrome and Fibromyalgia Newsletters
Subscribe to
Subscribe Now!
Receive up-to-date ME/CFS, Fibromyalgia & Lyme Disease treatment and research news
 Privacy Guaranteed  |  View Archives

Vitamins and Supplements for Fibromyalgia Support

Featured Products

Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function
Guaifenesin FA™ Guaifenesin FA™
Natural Expectorant Relieves Chest Congestion
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Optimized Curcumin Longvida® Optimized Curcumin Longvida®
Supports Cognition, Memory & Overall Health
Hydroxocobalamin Extreme™ Hydroxocobalamin Extreme™
The B-12 your brain needs for detox & sharpness

Natural Remedies

Carry a Massage Therapist in Your Pocket Carry a Massage Therapist in Your Pocket
Safely Burn Away Body Fat Safely Burn Away Body Fat
Breaking Through the Mental Fog Breaking Through the Mental Fog
Undenatured Type II Collagen - Chicken Soup for Your Joints Undenatured Type II Collagen - Chicken Soup for Your Joints
Are You Obtaining the Proper Enzymes? Are You Obtaining the Proper Enzymes?

What is Fibromyalgia?
Fibromyalgia Diagnosis
Fibromyalgia Symptoms
Fibromyalgia Causes
Fibromyalgia Treatments
Fibromyalgia Diet
Fibromyalgia Medications
M.E. & CFS
What is M.E./CFS?
M.E./CFS Diagnosis
M.E./CFS Symptoms
M.E./CFS Causes
M.E./CFS Treatments
M.E./CFS Diet
M.E./CFS Medications
What is Lyme Disease?
Lyme Disease Diagnosis
Lyme Disease Symptoms
Lyme Disease Causes
Lyme Disease Treatments
Lyme Disease Diet
Lyme Disease Medications
M.E. & CFS
Lyme Disease
General Health
ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus
Credit Card Processing