Characteristics of IALSA Affiliated Studies
Sample characteristics and data collection timelines for IALSA-affiliated stdies
Study Title |
Start Yr |
n (T1) |
Age (T1) |
Followup (yrs) |
Occ Interval |
Curr # Occ |
Type Sample
|
|
Australian Longitudinal Study of Aging (ALSA)☼ |
1992 |
2087 |
65-103 |
11 |
2, 6, 3 |
4 |
Stratified sample of community dwelling and those in residential care |
|
Bonn Longitudinal Study of Aging (BOLSA) |
1965 |
221 |
62-72 |
19 |
Varies |
8 |
Community volunteer sample |
|
Caerphilly Cohort Study of Older Men (CCS) |
1979 |
2512 |
45-59 |
25 |
4-5 |
6 |
Electoral register plus GP lists, male only |
|
Canberra Longitudinal Study (CLS) |
1991 |
897 |
70-93 |
14 |
3.5 |
5 |
Community sample (electoral role), institutional care, oversampling of very old |
|
Cardiovascular Health Study (CHS) |
1989 |
5888 |
65+ |
10 |
1 |
10 |
Non-institutionalized Medicare eligible sample; minorities oversampled |
|
Einstein Aging Studies (EAS) |
1980 |
488 |
70-90 |
20 |
1 |
20 |
Volunteer sample |
|
Aging in Women and Men (GENDER) |
1995 |
498 |
69-81 |
8 |
4 |
3 |
Opposite sex twins in Sweden born between 1906 and 1925 |
|
Gerontological and Geriatric Population Studies in Göteborg, Sweden (H-70) |
1971 |
1000 |
70 |
29 |
2-5 |
12 |
Representative sample: Gothenberg; sequential design |
|
Health and Retirement Study (HRS) and AHEAD |
1992 |
12600 |
50-60 |
14.0 |
2 |
7-8 |
National sample, minorities oversampled |
|
Healthy Older Person Edinburgh Study (HOPE) |
1990 |
603 |
70+ |
12 |
4 |
4 |
Medical registry |
|
Interdisciplinary Longitudinal Study of Adult Development (ILSE) |
1996 |
1384 |
45, 65 |
4 |
4 |
2 |
Former East and West Germany |
|
Long Beach Longitudinal Study (LBLS) |
1978 |
509 |
55-87 |
21 |
2, 14 |
4 |
Recruited from Health Maintenance Organization |
|
Longitudinal Aging Study Amsterdam (LASA) |
1991 |
3107 |
55-85 |
9 |
3 |
4 |
Urban and rural municipal registries |
|
Longitudinal Study of Cognitive Change in Normal, Healthy Old Age (LSCC) |
1982 1985 |
2050 2193 |
49-96 |
14 |
1-6 |
4 |
Community volunteer sample; sequential design |
|
National Survey of Health and Development (NSHD; 1946 British Birth Cohort Study) |
1946 |
5362 |
60 |
60 |
Varies |
39 |
Nationally representative sample UK |
|
Nordic Research on Aging Study (NORA) |
1989 |
1204 |
75 |
5 |
5 |
2 |
Representative city samples |
|
Normative Aging Study (NAS) |
1963 |
2280 |
21-81 |
42 |
5 |
13 |
Male veterans |
|
Origins of Variance in the Old-Old: Octogenarian Twins (OCTO-Twin) |
1990 |
702 |
80+ |
8 |
2 |
5 |
Swedish Twin Registry |
|
Oregon Brain Aging Study (OBAS) and Dementia Prevention Study (DPS) |
1989+ 2000 |
258 214 |
55-107 85-94 |
0-18 0-6.5 |
6 & 12 mo |
1-33 (16.5) 1-13 |
Community volunteers |
|
Seattle Longitudinal Study (SLS)☼ |
1956 |
5000+ Cumul |
22-70 |
42 |
7 |
7 |
Health Maintenance Organization; sequential design |
|
Swedish Adoption Twin Study of Aging (SATSA) |
1984 |
1500 |
40-84 |
6 |
3 |
3 |
Swedish Twin Registry |
|
Swiss Interdisciplinary Longitudinal Study on the Oldest-Old" (SWILSO-O) |
1994 1999 |
340 377 |
80-85 |
10 5 |
12 or 18 months |
9 5 |
Stratified (age/sex), initially community-dwelling in a urban and a rural setting; sequential design |
|
University of North Carolina Alumni Heart Study (UNCAHS) |
(1964) 1986 1992 |
(7007) 4989 1154 |
(17-25) 40-48
|
(40) 20 14 |
1.5 |
- 12 7 |
- Students – data on file - Joined study - spouses |
|
Victoria Longitudinal Study (VLS) |
1986 1993 2002 |
484 530 570 |
55-85 55-85 55-85 |
15 9 0 |
3 3 -- |
6 4 1 |
Community volunteers; sequential design |
|
Wisconsin Longitudinal Study (WLS) |
1957 |
10,317 |
18 |
48 |
7-17 |
5 |
Random sample high school graduates |

