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Temperature and Mortality

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT03259100
First Posted: August 23, 2017
Last Update Posted: August 24, 2017
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
John Speakman, Chinese Academy of Sciences
  Purpose
The investigators evaluated the spatial association between, cardiovascular diseases (CVD) and stroke mortality rate with average ambient temperature (Ta) , and then used this relationship to model future temporal trends in mortality from CVD and stroke till the end of century (2099) using different warming scenarios across the mainland USA.

Condition Intervention
Cardiovascular Diseases Other: all the data collection have done by CDC.

Study Type: Observational
Study Design: Observational Model: Ecologic or Community
Time Perspective: Retrospective
Official Title: Impact of Increasing Temperature Over the Coming Century on Mortality From CVD and Stroke

Further study details as provided by John Speakman, Chinese Academy of Sciences:

Primary Outcome Measures:
  • spatial association between, cardiovascular diseases (CVD) and stroke mortality rate with average ambient temperature [ Time Frame: 2011-2013 ]
    spatial association between, cardiovascular diseases (CVD) and stroke mortality rate with average ambient temperature


Enrollment: 17000000
Actual Study Start Date: January 1, 2011
Study Completion Date: February 1, 2013
Primary Completion Date: January 1, 2012 (Final data collection date for primary outcome measure)
Intervention Details:
    Other: all the data collection have done by CDC.
    In this study there was no intervention, just simple data collection via CDC.
Detailed Description:
the investigators used data on mortality rate (per 100,000 individuals) for CVD and stroke (between 2011 and 2013, age>35years) from the publicly available Centers for disease prevention and control (CDC) web site (www.cdc.gov). CVD mortality was defined as the number of deaths per 100,000 personyears due to circulatory causes (International Statistical Classification of Diseases, Tenth Revision, codes I00-I99).Oak Ridge National laboratory was the source of the ambient temperature data (http://www.daac.ornl.gov: files B01, B02 and C07).The investigators obtained data on prevalence of HTN (HTN was defined as systolic blood pressure (BP) of at least 140 mm Hg, self-reported use of antihypertensive treatment, or both) from county health rankings and roadmaps organisation (www.countyhealthrankings.org), which were estimated based on National Health and Nutrition Examination Survey in five two-year waves from 1999-2008 including 26,349 adults aged 30 years and older and from the Behavioral Risk Factor Surveillance System (BRFSS) from 1997-2009 including 1,283,722 adults aged 30 years and older.
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   35 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
We used data on mortality rate (per 100,000 individuals) for CVD and stroke (between 2011 and 2013, age>35years) from the publicly available Centers for disease prevention and control (CDC) web site (www.cdc.gov).
Criteria

Inclusion Criteria:

1. age>35 years

Exclusion Criteria:

  Contacts and Locations
No Contacts or Locations Provided
  More Information

Additional Information:
Publications:
Responsible Party: John Speakman, Principal Investigator, Chinese Academy of Sciences
ClinicalTrials.gov Identifier: NCT03259100     History of Changes
Other Study ID Numbers: CDC and IPCC
First Submitted: August 19, 2017
First Posted: August 23, 2017
Last Update Posted: August 24, 2017
Last Verified: August 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: all of our data are in public available, www.CDC.gov
Supporting Materials: Study Protocol
Informed Consent Form (ICF)
Analytic Code
Time Frame: 2011-2013
Access Criteria: there is nor criteria for the sharing these data, whole database is public access.
URL: http://www.CDC.gov

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:
Cardiovascular Diseases