Long Beach Longitudinal Study
The Long Beach Longitudinal Study (LBLS) of cognition and aging seeks to study change and the predictors of change in cognitive processes across the adult life span. The LBLS approach to cognitive change and aging involves:
- evaluating individual differences in performance on cognitive measures
- relating sociodemographic phenomena (e.g. birth cohort, gender) to cognitive performance
- understanding how individual charateristics (e.g. personality, physical and mental health, affect) influence cognitive abilities.
- Start Year
- 1978
Visit LBLS
| Investigators | Contacts |
|---|---|
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Design
- Study design
- Cohort
Marker Paper
Zelinski EM, Kennison RF; Long Beach Longitudinal Study. The Long Beach Longitudinal Study: evaluation of longitudinal effects of aging on memory and cognition. Home Health Care Serv Q. 2001;19(3):45-55.
PUBMED 11436406
Recruitment
- Sources of Recruitment
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- Individuals
Number of participants
- Number of participants
- 2,125
- Number of participants with biosamples
- 69
Access
Availability of data and biosamples
| Data | |
| Biosamples | |
| Other |
Timeline
LBLS population
Representative sample of person 30 years of age or older residing in Long Beach, or in nearby cities within Los Angeles, Riverside, San Bernadino, and Orange counties.
Selection Criteria
- Minimum age
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30
- Newborns
- Twins
- Countries
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- United States of America
- Territory
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Long Beach, or in nearby cities within Los Angeles, Riverside, San Bernadino, and Orange counties.
Recruitment
- Sources of recruitment
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- General population
- General Population
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- Volunteer enrolment
Number of participants
- Number of participants
- 2,125
- Number of participants with biosamples
- 69
- Supplementary Information
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Three panel of participants:
Panel 1: 264 participants recuited in 1978
Panel 2: 630 participants recruited in 1994
Panel 3: 911 participants recuited from 2000 to 20021978: 584 participants
1981: 264 participants
1994: 736 participants
1997: 416 participants
2000: 1126 participants
2003: 644 participants
2008: 468 participants
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
1978 Baseline
|
Baseline assessments. Measures: Memory, Reasoning, Spatial reasoning, Vocabulary, Health questionnaire, Activity questionnaire. n=584 |
1978-04 | 1979-06 |
| 0 |
1981 follow-up
|
First follow-up of participants. Measures: Memory, Reasoning, Spatial Reasoning, Vocabulary, Health questionnaire, Activity questionnaire. N=264 participants of those tested in 1978. |
1981-06 | 1981-09 |
| 0 |
1994 follow-up
|
Second follow-up of participants. Measures: Memory, Working memory,Reasoning, Spatial Reasoning, Vocabulary, Health questionnaire, Activity questionnaire, Personality. N= 736 ... |
1994-01 | 1996-07 |
| 0 |
1997 follow-up
|
Third follow-up of participants. Measures: Memory, Working memory, Reasoning, Spatial reasoning, Vocabulary, Health questionnaire, Activity questionnaire. N=416 (42 participants from the ... |
1997-06 | 1999-07 |
| 0 |
2000 follow-up
|
Fourth follow-up of participants. Measures: Memory, Working memory,Reasoning, Spatial Reasoning, Vocabulary, Health questionnaire, Activity questionnaire, Personality. N= 1126 ... |
2000-04 | 2003-09 |
| 0 |
2003 follow-up
|
Fifth follow-up of participants. Measures: Memory, Working memory,Reasoning, Spatial Reasoning, Vocabulary, Health questionnaire, Activity questionnaire. N= 644(131 of panel 2 and 513 ... |
2003-04 | 2004-07 |
| 0 |
2008 follow-up
|
Sixth follow-up of participants. Measures: Memory, Working memory,Reasoning, Spatial Reasoning, Vocabulary, Health questionnaire, Activity questionnaire, Personality, Non-invensive physical ... |
2008-06 | 2012-09 |