TY - JOUR
T1 - Baseline predictors of missed visits in the look AHEAD study
AU - Fitzpatrick, Stephanie L.
AU - Jeffery, Robert
AU - Johnson, Karen C.
AU - Roche, Cathy C.
AU - Van Dorsten, Brent
AU - Gee, Molly
AU - Johnson, Ruby Ann
AU - Charleston, Jeanne
AU - Dotson, Kathy
AU - Walkup, Michael P.
AU - Hill-Briggs, Felicia
AU - Brancati, Frederick L.
PY - 2014/1
Y1 - 2014/1
N2 - Objective To identify baseline attributes associated with consecutively missed data collection visits during the first 48 months of Look AHEAD - a randomized, controlled trial in 5,145 overweight/obese adults with type 2 diabetes designed to determine the long-term health benefits of weight loss achieved by lifestyle change. Design and Methods The analyzed sample consisted of 5,016 participants who were alive at month 48 and enrolled at Look AHEAD sites. Demographic, baseline behavior, psychosocial factors, and treatment randomization were included as predictors of missed consecutive visits in proportional hazard models. Results In multivariate Cox proportional hazard models, baseline attributes of participants who missed consecutive visits (n = 222) included: younger age (hazard ratio [HR] 1.18 per 5 years younger; 95% confidence Interval 1.05, 1.30), higher depression score (HR 1.04; 1.01, 1.06), non-married status (HR 1.37; 1.04, 1.82), never self-weighing prior to enrollment (HR 2.01; 1.25, 3.23), and randomization to minimal vs. intensive lifestyle intervention (HR 1.46; 1.11, 1.91). Conclusions Younger age, symptoms of depression, non-married status, never self-weighing, and randomization to minimal intervention were associated with a higher likelihood of missing consecutive data collection visits, even in a high-retention trial like Look AHEAD. Whether modifications to screening or retention efforts targeted to these attributes might enhance long-term retention in behavioral trials requires further investigation.
AB - Objective To identify baseline attributes associated with consecutively missed data collection visits during the first 48 months of Look AHEAD - a randomized, controlled trial in 5,145 overweight/obese adults with type 2 diabetes designed to determine the long-term health benefits of weight loss achieved by lifestyle change. Design and Methods The analyzed sample consisted of 5,016 participants who were alive at month 48 and enrolled at Look AHEAD sites. Demographic, baseline behavior, psychosocial factors, and treatment randomization were included as predictors of missed consecutive visits in proportional hazard models. Results In multivariate Cox proportional hazard models, baseline attributes of participants who missed consecutive visits (n = 222) included: younger age (hazard ratio [HR] 1.18 per 5 years younger; 95% confidence Interval 1.05, 1.30), higher depression score (HR 1.04; 1.01, 1.06), non-married status (HR 1.37; 1.04, 1.82), never self-weighing prior to enrollment (HR 2.01; 1.25, 3.23), and randomization to minimal vs. intensive lifestyle intervention (HR 1.46; 1.11, 1.91). Conclusions Younger age, symptoms of depression, non-married status, never self-weighing, and randomization to minimal intervention were associated with a higher likelihood of missing consecutive data collection visits, even in a high-retention trial like Look AHEAD. Whether modifications to screening or retention efforts targeted to these attributes might enhance long-term retention in behavioral trials requires further investigation.
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U2 - 10.1002/oby.20613
DO - 10.1002/oby.20613
M3 - Article
C2 - 23996977
AN - SCOPUS:84892369093
SN - 1930-7381
VL - 22
SP - 131
EP - 140
JO - Obesity
JF - Obesity
IS - 1
ER -