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Long-term retention of older adults in the Cardiovascular Health Study: implications for studies of the oldest old.

TitleLong-term retention of older adults in the Cardiovascular Health Study: implications for studies of the oldest old.
Publication TypeJournal Article
Year of Publication2010
AuthorsStrotmeyer, ES, Arnold, AM, Boudreau, RM, Ives, DG, Cushman, M, Robbins, JA, Harris, TB, Newman, AB
JournalJ Am Geriatr Soc
Volume58
Issue4
Pagination696-701
Date Published2010 Apr
ISSN1532-5415
KeywordsAge Factors, Aged, Aged, 80 and over, Ambulatory Care Facilities, Analysis of Variance, Cardiovascular Diseases, Chi-Square Distribution, Epidemiologic Studies, Female, Geriatric Assessment, House Calls, Humans, Logistic Models, Longitudinal Studies, Male, Multivariate Analysis, Patient Dropouts, Patient Selection, Research Subjects, Telephone, United States
Abstract<p><b>OBJECTIVES: </b>To describe retention according to age and visit type (clinic, home, telephone) and to determine characteristics associated with visit types for a longitudinal epidemiological study in older adults.</p><p><b>DESIGN: </b>Longitudinal cohort study.</p><p><b>SETTING: </b>Four U.S. clinical sites.</p><p><b>PARTICIPANTS: </b>Five thousand eight hundred eighty-eight Cardiovascular Health Study (CHS) participants aged 65 to 100 at 1989/90 or 1992/93 enrollment (58.6% female; 15.7% black). CHS participants were contacted every 6 months, with annual assessments through 1999 and in 2005/06 for the All Stars Study visit of the CHS cohort (aged 77-102; 66.5% female; 16.6% black).</p><p><b>MEASUREMENTS: </b>All annual contacts through 1999 (n=43,772) and for the 2005/06 visit (n=1,942).</p><p><b>RESULTS: </b>CHS had 43,772 total participant contacts from 1989 to 1999: 34,582 clinic visits (79.0%), 2,238 refusals (5.1%), 4,401 telephone visits (10.1%), 1,811 home visits (4.1%), and 740 other types (1.7%). In 2005/06, the All Stars participants of the CHS cohort had 36.6% clinic, 22.3% home, and 41.1% telephone visits. Compared with participants aged 65 to 69, odds ratios of not attending a CHS clinic visit were 1.82 (95% confidence interval (CI)=1.54-2.13), 2.94 (95% CI=2.45-3.57), 4.55 (95% CI=3.70-5.56), and 9.09 (95% CI=7.69-11.11) for those aged 70 to 74, 75 to 79, 80 to 84, and 85 and older, respectively, in sex-adjusted regression. In multivariable regression, participants with a 2005/06 clinic visit were younger, more likely to be male and in good health, and had had better cognitive and physical function 7 years earlier than participants with other visit types. Participants with home, telephone, and missing visits were similar on characteristics measured 7 years earlier.</p><p><b>CONCLUSION: </b>Offering home, telephone, and proxy visits are essential to optimizing follow-up of aging cohorts. Home visits increased in-person retention from 36.5% to 58.8% and diversified the cohort with respect to age, health, and physical functioning.</p>
DOI10.1111/j.1532-5415.2010.02770.x
Alternate JournalJ Am Geriatr Soc
PubMed ID20398149
PubMed Central IDPMC2903735
Grant ListR01 HL075366-04 / HL / NHLBI NIH HHS / United States
N01 HC085086 / HC / NHLBI NIH HHS / United States
P30 AG024827 / AG / NIA NIH HHS / United States
R01 AG020098-07 / AG / NIA NIH HHS / United States
R01 AG020098-01 / AG / NIA NIH HHS / United States
P30 AG024827-05 / AG / NIA NIH HHS / United States
R01 HL075366 / HL / NHLBI NIH HHS / United States
R01 AG015928-02 / AG / NIA NIH HHS / United States
P30 AG024827-02 / AG / NIA NIH HHS / United States
P30 AG024827-01 / AG / NIA NIH HHS / United States
N01 HC085081 / HC / NHLBI NIH HHS / United States
U01 HL080295-04 / HL / NHLBI NIH HHS / United States
R01 AG015928 / AG / NIA NIH HHS / United States
U01 HL080295 / HL / NHLBI NIH HHS / United States
R56 AG020098-06A1 / AG / NIA NIH HHS / United States
R01 AG023629-03 / AG / NIA NIH HHS / United States
N01 HC075150 / HC / NHLBI NIH HHS / United States
N01-HC-85081 / HC / NHLBI NIH HHS / United States
R01 AG020098-02 / AG / NIA NIH HHS / United States
N01 HC015103 / HC / NHLBI NIH HHS / United States
N01 HC085083 / HC / NHLBI NIH HHS / United States
R01 AG027058-04 / AG / NIA NIH HHS / United States
R56 AG020098 / AG / NIA NIH HHS / United States
P30-AG-024827 / AG / NIA NIH HHS / United States
U01 HL080295-01 / HL / NHLBI NIH HHS / United States
HL-075366 / HL / NHLBI NIH HHS / United States
R01 AG020098-03 / AG / NIA NIH HHS / United States
R01 AG023629-02 / AG / NIA NIH HHS / United States
N01 HC085085 / HC / NHLBI NIH HHS / United States
R01 AG027058-03 / AG / NIA NIH HHS / United States
R01 AG020098-08 / AG / NIA NIH HHS / United States
N01HC55222 / HL / NHLBI NIH HHS / United States
U01 HL080295-03 / HL / NHLBI NIH HHS / United States
N01-HC-85086 / HC / NHLBI NIH HHS / United States
P30 AG024827-06 / AG / NIA NIH HHS / United States
R01 HL075366-05 / HL / NHLBI NIH HHS / United States
N01HC85086 / HL / NHLBI NIH HHS / United States
R01 HL075366-03 / HL / NHLBI NIH HHS / United States
N01 HC085082 / HC / NHLBI NIH HHS / United States
N01-HC-85082 / HC / NHLBI NIH HHS / United States
N01 HC085080 / HC / NHLBI NIH HHS / United States
N01 HC-55222 / HC / NHLBI NIH HHS / United States
R01 AG020098-04 / AG / NIA NIH HHS / United States
P30 AG024827-03 / AG / NIA NIH HHS / United States
R01 AG020098-06A2 / AG / NIA NIH HHS / United States
N01 HC055222 / HC / NHLBI NIH HHS / United States
R01 HL075366-01A1 / HL / NHLBI NIH HHS / United States
R01 AG027058-01 / AG / NIA NIH HHS / United States
P30 AG024827-06S2 / AG / NIA NIH HHS / United States
U01 HL080295-02 / HL / NHLBI NIH HHS / United States
N01-HC-85083 / HC / NHLBI NIH HHS / United States
N01-HC-75150 / HC / NHLBI NIH HHS / United States
N01-HC-85080 / HC / NHLBI NIH HHS / United States
R01 AG020098-09 / AG / NIA NIH HHS / United States
R01-AG-20098 / AG / NIA NIH HHS / United States
N01 HC085084 / HC / NHLBI NIH HHS / United States
R01 AG020098 / AG / NIA NIH HHS / United States
R01 AG023629-01 / AG / NIA NIH HHS / United States
R01 HL075366-02 / HL / NHLBI NIH HHS / United States
N01HC75150 / HL / NHLBI NIH HHS / United States
R01-AG-023629 / AG / NIA NIH HHS / United States
N01-HC-85079 / HC / NHLBI NIH HHS / United States
R01 AG027058-02 / AG / NIA NIH HHS / United States
P30 AG024827-04 / AG / NIA NIH HHS / United States
N01HC85079 / HL / NHLBI NIH HHS / United States
N01 HC085079 / HC / NHLBI NIH HHS / United States
R01 AG023629 / AG / NIA NIH HHS / United States
R01 AG027058 / AG / NIA NIH HHS / United States
N01 HC045133 / HC / NHLBI NIH HHS / United States
R01-AG-15928 / AG / NIA NIH HHS / United States
R01-AG-027058 / AG / NIA NIH HHS / United States
N01 HC035129 / HC / NHLBI NIH HHS / United States
R01 AG020098-05 / AG / NIA NIH HHS / United States
R01 AG023629-04 / AG / NIA NIH HHS / United States