SIBLING CONCORDANCE FOR CLINICAL FEATURES OF DUCHENNE AND BECKER MUSCULAR DYSTROPHIES

PETTYGROVE, SYDNEY; LU, ZHENQIANG; ANDREWS, JENNIFER G.; MEANEY, F. JOHN; SHEEHAN, DANIEL W.; PRICE, ELINORA T.; FOX, DEBORAH J.; PANDYA, SHREE; OUYANG, LIJING; APKON, SUSAN D.; POWIS, ZOE; CUNNIFF, CHRISTOPHER

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SIBLING CONCORDANCE FOR CLINICAL FEATURES OF DUCHENNE AND BECKER MUSCULAR DYSTROPHIES

Published Date:

Jun 2014

Source:

Muscle Nerve. 2013; 49(6):814-821.

Language:

English

[PDF-395.73 KB]

Details:

Personal Authors:

PETTYGROVE, SYDNEY ; LU, ZHENQIANG ; ANDREWS, JENNIFER G. ; MEANEY, F. JOHN ; SHEEHAN, DANIEL W. ; ... More ▼

Keywords:

[+]

Pubmed ID:

24030636

Pubmed Central ID:

PMC4481732

Description:

Introduction

The correlation of markers of disease severity among brothers with Duchenne or Becker muscular dystrophy has implications for clinical guidance and clinical trials.

Methods

Sibling pairs with Duchenne or Becker muscular dystrophy (n = 60) were compared for ages when they reached clinical milestones of disease progression, including ceased ambulation, scoliosis of ≥ 20°, and development of cardiomyopathy.

Results

The median age at which younger brothers reached each milestone, compared with their older brothers ranged from 25 months younger for development of cardiomyopathy to 2 months older for ceased ambulation. For each additional month of ambulation by the older brother, the hazard of ceased ambulation by the younger brother decreased by 4%.

Conclusions

The ages when siblings reach clinical milestones of disease vary widely between siblings. However, the time to ceased ambulation for older brothers predicts the time to ceased ambulation for their younger brothers.

Document Type:

Journal Article

Collection(s):

CDC Public Access

Funding:

CC999999/Intramural CDC HHS/United States
U01 DD000187/DD/NCBDD CDC HHS/United States
DD000187/DD/NCBDD CDC HHS/United States

Main Document Checksum:

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Supporting Files:

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