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Assessing the Quality of a Nonrandomized Pragmatic Trial for Primary Prevention of Falls among Older Adults
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Jan 2015
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Source: Prev Sci. 16(1):31-40.
[PDF-367.91 KB]
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Alternative Title:Prev Sci
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Description:Background
Current approaches to falls prevention mostly rely on secondary and tertiary prevention and target individuals at high risk of falls. An alternative is primary prevention, in which all seniors are screened, referred as appropriate, and educated regarding falls risk. Little information is available on research designs that allow investigation of this approach in the setting of aging services delivery, where randomization may not be possible.
Methods
Healthy Steps for Older Adults, a statewide program of the Pennsylvania (PA) Department of Aging, involves a combination of education about falls and screening for balance problems, with referral to personal physicians and home safety assessments. We developed a nonrandomized statewide trial, Falls Free PA, to assess its effectiveness in reducing falls incidence over 12 months. We recruited 814 seniors who completed the program (503 first time participants, 311 people repeating the program) and 1020 who did not participate in the program, from the same sites. We assessed the quality of this nonrandomized design by examining recruitment, follow-up across study groups, and comparability at baseline.
Results
Of older adults approached in senior centers, 90.5% (n=2219) signed informed consent, and 1834 (82.4%) completed baseline assessments and were eligible for follow-up. Attrition in the three groups over 12 months was low and non-differential (<10% for withdrawal and <2% for other loss to follow-up). Median follow-up, which involved standardized monthly assessment of falls, was 10 months in all study groups. At baseline the groups did not differ in measures of health or falls risk factors.
Conclusions
Comparable status at baseline, recruitment from common sites, and similar experience with retention suggest that the nonrandomized design will be effective for assessment of this approach to primary prevention of falls.
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Pubmed ID:24488533
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Pubmed Central ID:PMC4119571
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Volume:16
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Issue:1
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