Chicago Health and Aging Study

Overview

Acronym
CHAP
Investigators
  • Dr. Carlos Mendes de Leon

    University of Michigan

Contacts
  • Dr. Carlos Mendes de Leon

    University of Michigan

General Design

Study design
Cohort
Start Year
1993
End Year
2011
General Information on Follow Up (profile, frequency)

The CHAP study included in-person interviews that were conducted in the participants' homes in approximately three-year cycles, with each subsequent cycle starting immediately after completion of the previous one, for a total of 5 follow-up.

Recruitment Target
  • Individuals
Number of Participants
10,801
Number of Participants with Biological Samples
8,000

Access

Availability of data and biosamples

Possible Access to Data
Possible Access to Biosamples
Other

Marker Paper

Bienias JL, Beckett LA, Bennett DA, Wilson RS, Evans DA. Design of the Chicago Health and Aging Project (CHAP). 2003; 5(5): 349-55.

PUBMED 14646025

Timeline

Population

CHAP - Urban population of older adults from the south-west side of Chicago

Selection Criteria

Minimum age
65
Countries
  • United States of America
Territory

Chicago.

Ethnic Origin
  • Whites and Blacks

Sample Size

Number of Participants
10,801
Number of Participants with Biological Samples
8,000
Supplementary Information about Population

The "original cohort", enrolled between 1993 and 1997, included 6,158 participants. In 2000, CHAP began to enroll additional participants from the study community who had turned 65 since inception of the study as “successive age cohorts.”

Data Collection Events

# Name Description Start End
0 CHAP - Baseline 1993 (January) 1997 (May)
1 CHAP - Follow-up 1 1997 (June) 2000 (February)
2 CHAP - Follow-up 2 2000 (March) 2003 (January)
3 CHAP - Telephone interviews 2000 (March) 2011 (December)
4 CHAP - Follow-up 3 2003 (February) 2006 (April)
5 CHAP - Follow-up 4 2006 (May) 2009 (January)
6 CHAP - Follow-up 5 2009 (March) 2011 (December)

Individual Studies Included

Acronym Name Study design Participants Countries

Harmonization Projects Included

Acronym Name

Networks

Acronym Name Studies

Datasets

Name Type Data Collection Events Variables
Last Update: 2020-02-05 16:07