Skip to main content
×
Home
    • Aa
    • Aa

Heritability and Validity of Healthy Physical Aging (Wellness) in Elderly Male Twins

  • Terry Reed (a1) and Danielle M. Dick (a2)
Abstract
Abstract

The authors define a trait “wellness” for good health in 6109 men in the National Academy of Sciences-National Research (NAS-NRC) twin panel aged 70 years and up surveyed by mail in the fall of 1998. Men who responded that they had not had a heart attack, coronary surgery, stroke, diabetes or prostate cancer in the survey questionnaire (Q8) met the broad definition of wellness. A more narrow definition included the absence of hypertension. Genetic analysis indicated that over 50% of the population variance for liability to either wellness definition was genetic. A subset of the NASNRC twins also participates in the National Heart, Lung and Blood Institute (NHLBI) twin study. NHLBI examinations and medical record review was done in 1986–1987 and 1995–1997 for 389 individuals who completed Q8. Excellent agreement (kappa > 0.8) was found between Q8 and outcome review for each condition comprising the wellness definition, ranging from 0.81 for coronary surgery to 0.88 for diabetes. Substantial agreement (kappa = 0.67) was found for hypertension. Kappa values for wellness were 0.82 for the broader definition and 0.74 if high blood pressure was included. Fraternal twin-pairs concordant for the wellness definitions are currently being recruited for linkage studies.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Heritability and Validity of Healthy Physical Aging (Wellness) in Elderly Male Twins
      Available formats
      ×
      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about sending content to Dropbox.

      Heritability and Validity of Healthy Physical Aging (Wellness) in Elderly Male Twins
      Available formats
      ×
      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about sending content to Google Drive.

      Heritability and Validity of Healthy Physical Aging (Wellness) in Elderly Male Twins
      Available formats
      ×
Copyright
Corresponding author
*Address for correspondence: Terry E. Reed, PhD, Department of Medical & Molecular Genetics, Indiana University School of Medicine, 975 W. Walnut Street, IB — 130, Indianapolis, IN 46202 USA
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Twin Research and Human Genetics
  • ISSN: 1832-4274
  • EISSN: 1839-2628
  • URL: /core/journals/twin-research-and-human-genetics
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 0
Total number of PDF views: 40 *
Loading metrics...

Abstract views

Total abstract views: 94 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 23rd May 2017. This data will be updated every 24 hours.