NCT00780546

Brief Summary

Data will be extracted from the NTUH medical records database, geocoded according to the street address so that the case number, incidence, etc could be mapped. The spatial data would be used to detect aggregation of TB cases, existence of "hot spots" and then determine if they may merit further investigation or may have occurred by chance. The results from these GIS-based analyses would address local variations in TB incidence and transmission.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2008

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2008

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

October 24, 2008

Completed
3 days until next milestone

First Posted

Study publicly available on registry

October 27, 2008

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2009

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2009

Completed
Last Updated

October 27, 2008

Status Verified

October 1, 2008

Enrollment Period

7 months

First QC Date

October 24, 2008

Last Update Submit

October 24, 2008

Conditions

Tuberculosis

Keywords

tuberculosisspatial epidemiologygeographic information system

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

NTUH patients

You may qualify if:

  • TB patients of NTUH

You may not qualify if:

  • TB patient whose address cannot be geocoded

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital

Taipei, Taipei, 100, Taiwan

Location

MeSH Terms

Conditions

Tuberculosis

Condition Hierarchy (Ancestors)

Mycobacterium InfectionsActinomycetales InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Study Officials

  • Chi-Tai Fang, PhD

    National Taiwan University

    STUDY DIRECTOR

  • Tzai-Hung Wen, PhD

    National Taiwan University

    STUDY DIRECTOR

  • In Chan Ng, bachelor

    National Taiwan University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

In Chan Ng, Bachelor

CONTACT

r96842013@ntu.edu.tw

Study Design

Study Type
observational
Observational Model
ECOLOGIC OR COMMUNITY
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER

Study Record Dates

First Submitted

October 24, 2008

First Posted

October 27, 2008

Study Start

October 1, 2008

Primary Completion

May 1, 2009

Study Completion

July 1, 2009

Last Updated

October 27, 2008

Record last verified: 2008-10

Locations

TW(1)