72991
document
Socio-demographic , anthropometric , and psychosocial predictors of attrition across behavioral weight-loss trials . Preventing attrition is a major concern in behavioral weight loss intervention studies . The purpose of this analysis was to identify baseline and six-month predictors associated with participant attrition across three independent clinical trials of behavioral weight loss interventions ( PREFER , SELF , and SMART ) that were conducted over 10 years . Baseline measures included body mass index , Barriers to Healthy Eating , Beck Depression Inventory-II ( BDI ) , Hunger Satiety Scale ( HSS ) , Binge Eating Scale ( BES ) , Medical Outcome Study Short Form ( MOS SF-36 v2 ) and Weight Efficacy Lifestyle Questionnaire ( WEL ) . We also examined early weight loss and attendance at group sessions during the first 6 months . Attrition was recorded at the end of the trials . Participants included 504 overweight and obese adults seeking weight loss treatment . The sample was 84.92 % female and 73.61 % white , with a mean ( ± SD ) age of 47.35 ± 9.75 years . After controlling for the specific trial , for every one unit increase in BMI , the odds of attrition increased by 11 % . For every year increase in education , the odds of attrition decreased by 10 % . Additional predictors of attrition included previous attempts to lose 50-79 lbs , age , not possessing health insurance , and BES , BDI , and HSS scores . At 6 months , the odds of attrition increased by 10 % with reduced group session attendance . There was also an interaction between percent weight change and trial ( p < .001 ) . Multivariate analysis of the three trials showed education , age , BMI , and BES scores were independently associated with attrition ( ps ≤ .01 ) . These findings may inform the development of more robust strategies for reducing attrition .
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Intervention_Psychological
(
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Intervention_Educational
PREFER , SELF
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Intervention_Educational
SMART )
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Intervention_Physical
Baseline measures included body mass index
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Intervention_Physical
Barriers to Healthy Eating
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Intervention_Educational
Beck Depression Inventory-II ( BDI )
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Intervention_Physical
Hunger Satiety Scale ( HSS
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Intervention_Physical
Binge Eating Scale ( BES )
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Intervention_Educational
Medical Outcome Study Short Form ( MOS SF-36 v2
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Intervention_Educational
Weight Efficacy Lifestyle Questionnaire ( WEL )
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Intervention_Educational
early weight loss and attendance at group sessions during the first 6 months .
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Outcome_Physical
body mass index
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Outcome_Physical
Barriers to Healthy Eating
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Outcome_Other
Beck Depression Inventory-II ( BDI )
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Outcome_Other
Hunger Satiety Scale ( HSS )
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Outcome_Other
Binge Eating Scale ( BES )
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Outcome_Other
Medical Outcome Study Short Form ( MOS SF-36 v2 )
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Outcome_Other
Weight Efficacy Lifestyle Questionnaire ( WEL )
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Outcome_Physical
early weight loss
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Outcome_Physical
attendance
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Outcome_Physical
Attrition
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Outcome_Physical
in BMI
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Outcome_Physical
year increase in education
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Outcome_Other
possessing health insurance , and BES , BDI , and HSS scores
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Outcome_Physical
of attrition
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Participant_Sample-size
504
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Participant_Condition
overweight and obese
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Participant_Age
adults
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Participant_Sample-size
84.92 %
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Participant_Sex
female
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Participant_Sample-size
73.61 %
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Participant_Age
age of 47.35 ± 9.75 years
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Participant_Condition
previous attempts to lose 50-79 lbs
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Participant_Condition
not possessing health insurance