TY - JOUR
T1 - Utility of telephone survey methods in population-based health studies of older adults
T2 - An example from the Alberta Older Adult Health Behavior (ALERT) study
AU - Vallance, Jeff K.
AU - Eurich, Dean T.
AU - Gardiner, Paul A.
AU - Taylor, Lorian M.
AU - Stevens, Gillian
AU - Johnson, Steven T.
N1 - Funding Information:
This study was supported by an Alberta Innovates – Health Solutions Establishment Grant awarded to Dr. Jeff Vallance. Dr. Jeff Vallance is supported by the Canada Research Chairs program and a Population Health Investigator Award from Alberta Innovates – Health Solutions. Dr. Dean Eurich is supported by a Population Health Investigator Award from Alberta Innovates – Health Solutions and a New Investigator Award from the Canadian Institutes for Health Research.
PY - 2014/5/22
Y1 - 2014/5/22
N2 - Background: Random digit dialing is often used in public health research initiatives to accrue and establish a study sample; however few studies have fully described the utility of this approach. The primary objective of this paper was to describe the implementation and utility of using random digit dialing and Computer Assisted Telephone Interviewing (CATI) for sampling, recruitment and data collection in a large population-based study of older adults [Alberta Older Adult Health Behavior (ALERT) study]. Methods. Using random digit dialing, older adults (> = 55 years) completed health behavior and outcome and demographic measures via CATI. After completing the CATI, participants were invited to receive a step pedometer and waist circumference tape measure via mail to gather objectively derived ambulatory activity and waist circumference assessments. Results: Overall, 36,000 telephone numbers were called of which 7,013 were deemed eligible for the study. Of those, 4,913 (70.1%) refused to participate in the study and 804 (11.4%) participants were not included due to a variety of call dispositions (e.g., difficult to reach, full quota for region). A total of 1,296 participants completed telephone interviews (18.5% of those eligible and 3.6% of all individuals approached). Overall, 22.8% of households did not have an age 55+ resident and 13.6% of individuals refused to participate, Average age was 66.5 years, and 43% were male. A total of 1,081 participants (83.4%) also submitted self-measured ambulatory activity (i.e., via step pedometer) and anthropometric data (i.e., waist circumference). With the exception of income (18.7%), the rate of missing data for demographics, health behaviors, and health measures was minimal (<1%). Conclusions: Older adults are willing to participate in telephone-based health surveys when randomly contacted. Researchers can use this information to evaluate the feasibility and the logistics of planned studies using a similar population and study design.
AB - Background: Random digit dialing is often used in public health research initiatives to accrue and establish a study sample; however few studies have fully described the utility of this approach. The primary objective of this paper was to describe the implementation and utility of using random digit dialing and Computer Assisted Telephone Interviewing (CATI) for sampling, recruitment and data collection in a large population-based study of older adults [Alberta Older Adult Health Behavior (ALERT) study]. Methods. Using random digit dialing, older adults (> = 55 years) completed health behavior and outcome and demographic measures via CATI. After completing the CATI, participants were invited to receive a step pedometer and waist circumference tape measure via mail to gather objectively derived ambulatory activity and waist circumference assessments. Results: Overall, 36,000 telephone numbers were called of which 7,013 were deemed eligible for the study. Of those, 4,913 (70.1%) refused to participate in the study and 804 (11.4%) participants were not included due to a variety of call dispositions (e.g., difficult to reach, full quota for region). A total of 1,296 participants completed telephone interviews (18.5% of those eligible and 3.6% of all individuals approached). Overall, 22.8% of households did not have an age 55+ resident and 13.6% of individuals refused to participate, Average age was 66.5 years, and 43% were male. A total of 1,081 participants (83.4%) also submitted self-measured ambulatory activity (i.e., via step pedometer) and anthropometric data (i.e., waist circumference). With the exception of income (18.7%), the rate of missing data for demographics, health behaviors, and health measures was minimal (<1%). Conclusions: Older adults are willing to participate in telephone-based health surveys when randomly contacted. Researchers can use this information to evaluate the feasibility and the logistics of planned studies using a similar population and study design.
KW - Computer-assisted telephone interviews (CATI)
KW - Health behavior
KW - Older adults
KW - Random digit dialing
KW - Response rate
UR - http://www.scopus.com/inward/record.url?scp=84901997591&partnerID=8YFLogxK
U2 - 10.1186/1471-2458-14-486
DO - 10.1186/1471-2458-14-486
M3 - Journal Article
C2 - 24884997
AN - SCOPUS:84901997591
VL - 14
JO - BMC Public Health
JF - BMC Public Health
IS - 1
M1 - 486
ER -