Ti PC Software for Analyzing Longitudinal Data

This study has been completed.
Sponsor:
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)
ClinicalTrials.gov Identifier:
NCT00005452
First received: May 25, 2000
Last updated: June 23, 2005
Last verified: June 2000
  Purpose

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
Cardiovascular Diseases
Heart Diseases

Study Type: Observational
Study Design: Observational Model: Natural History

Resource links provided by NLM:


Further study details as provided by National Heart, Lung, and Blood Institute (NHLBI):

Study Start Date: September 1991
Estimated Study Completion Date: April 1996
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.

  Eligibility

Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

No eligibility criteria

  Contacts and Locations
No Contacts or Locations Provided
  More Information

No publications provided

ClinicalTrials.gov Identifier: NCT00005452     History of Changes
Other Study ID Numbers: 4385
Study First Received: May 25, 2000
Last Updated: June 23, 2005
Health Authority: United States: Federal Government

Additional relevant MeSH terms:
Cardiovascular Diseases
Heart Diseases

ClinicalTrials.gov processed this record on April 17, 2014