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Ti PC Software for Analyzing Longitudinal Data

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ClinicalTrials.gov Identifier: NCT00005452
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : March 16, 2016
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
To develop TI (pronounced 'T-sub-I'), a personal computer program to analyze time-varying data generated by periodic patient reports, repeatedly-observed disease signs, or serial biomarkers to study chronic disease.

Condition or disease
Cardiovascular Diseases Heart Diseases

Detailed Description:

BACKGROUND:

With the advent of quasi-likelihood, generalized estimating equations, and new ways to handle missing data, has come a striking increase in applicable models, perhaps more than after the 1972 introduction of the Cox model for survival data. TI provided a way to analyze the data.

DESIGN NARRATIVE:

TIl provided graphics for data exploration and model validation. TI ran under most current version of Windows, used Civilized Software's MLAB as its programming language, offered context-sensitive help, a dictionary of relevant terms, identification of file entries from their screen position, and simple animation. TI permitted the user to analyze time-varying data from the two perspectives of repeated measured using a variety of models and time series where both time and frequency domain tools were provided.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.


Study Type : Observational
Study Start Date : September 1991
Study Completion Date : April 1996




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Ages Eligible for Study:   up to 100 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria
No eligibility criteria

ClinicalTrials.gov Identifier: NCT00005452     History of Changes
Other Study ID Numbers: 4385
R44HL047237 ( U.S. NIH Grant/Contract )
First Posted: May 26, 2000    Key Record Dates
Last Update Posted: March 16, 2016
Last Verified: June 2000

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases