Ti PC Software for Analyzing Longitudinal Data - Tabular View

Tracking Information
First Received Date ^ICMJE	May 25, 2000
Last Updated Date	June 23, 2005
Start Date ^ICMJE	September 1991
Primary Completion Date
Current Primary Outcome Measures ^ICMJE
Original Primary Outcome Measures ^ICMJE
Change History	Complete list of historical versions of study NCT00005452 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures ^ICMJE
Original Secondary Outcome Measures ^ICMJE

Descriptive Information
Brief Title ^ICMJE	Ti PC Software for Analyzing Longitudinal Data
Official Title ^ICMJE
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.
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.
Study Phase
Study Type ^ICMJE	Observational
Study Design ^ICMJE	Natural History
Condition ^ICMJE	Cardiovascular Diseases Heart Diseases
Intervention ^ICMJE
Study Arms / Comparison Groups
Publications *
* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information
Recruitment Status ^ICMJE	Completed
Enrollment ^ICMJE
Completion Date	April 1996
Primary Completion Date
Eligibility Criteria ^ICMJE	No eligibility criteria
Gender	Male
Ages
Accepts Healthy Volunteers	No
Contacts ^ICMJE	Contact information is only displayed when the study is recruiting subjects
Location Countries ^ICMJE

Administrative Information
NCT ID ^ICMJE	NCT00005452
Responsible Party
Study ID Numbers ^ICMJE	4385
Study Sponsor ^ICMJE	National Heart, Lung, and Blood Institute (NHLBI)
Collaborators ^ICMJE
Investigators ^ICMJE
Information Provided By	National Heart, Lung, and Blood Institute (NHLBI)
Verification Date	June 2000
^ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP