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OpenTrials
Completed

NCT Number: NCT03259100

Temperature and Mortality

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.

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Key information

Conditions

Cardiovascular Diseases

Age range

35 year and older

Sex eligibility

All sexes

Study type

Observational

About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age>35 years

Exclusion criteria

None

Treatment and study plan

all the data collection have done by CDC.

Other

In this study there was no intervention, just simple data collection via CDC.

Primary outcomes

  1. 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

Sponsors and collaborators

Lead sponsor

Chinese Academy of Sciences

Other Gov

Registry information

Official study title

Impact of Increasing Temperature Over the Coming Century on Mortality From CVD and Stroke

Important dates

Study start
2011
Primary completion
2012
Study completion
2013
First posted
Aug 23, 2017
Registry last updated
Aug 24, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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