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Article: Can early weight loss, eating behaviors and socioeconomic factors predict successful weight loss at 12- and 24-months in adolescents with obesity and insulin resistance participating in a randomised controlled trial?
Title | Can early weight loss, eating behaviors and socioeconomic factors predict successful weight loss at 12- and 24-months in adolescents with obesity and insulin resistance participating in a randomised controlled trial? |
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Authors | |
Keywords | Insulin resistance Weight loss Socioeconomic RESIST Predictors Pediatric Obesity Eating behaviors |
Issue Date | 2016 |
Citation | International Journal of Behavioral Nutrition and Physical Activity, 2016, v. 13, n. 1, p. 1 How to Cite? |
Abstract | © 2016 Gow et al.Background: Lifestyle interventions in adolescents with obesity can result in weight loss following active intervention but individual responses vary widely. This study aimed to identify predictors of weight loss at 12- and 24-months in adolescents with obesity and clinical features of insulin resistance. Methods: Adolescents (n = 111, 66 girls, aged 10-17 years) were participants in a randomised controlled trial, the RESIST study, examining the effects of two diets differing in macronutrient content on insulin sensitivity. Eighty-five completed the 12-month program and 24-month follow-up data were available for 42 adolescents. Change in weight was determined by BMI expressed as a percentage of the 95th percentile (BMI95). The study physician collected socioeconomic data at baseline. Physical activity and screen time, and psychological dimensions of eating behavior were self-reported using the validated CLASS and EPI-C questionnaires, respectively. Stepwise multiple regressions were conducted to identify models that best predicted change in BMI95 at 12- and 24-months. Results: Mean BMI95 was reduced at 12-months compared with baseline (mean difference [MD] ± SE: -6.9 ± 1.0, P < 0.001) but adolescents had significant re-gain from 12- to 24-months (MD ± SE: 3.7 ± 1.5, P = 0.017). Participants who achieved greater 12-month weight loss had: greater 3-month weight loss, a father with a higher education, lower baseline external eating and parental pressure to eat scores and two parents living at home. Participants who achieved greater 24-month weight loss had: greater 12-month weight loss and a lower baseline emotional eating score. Conclusions: Early weight loss is consistently identified as a strong predictor of long-term weight loss. This could be because early weight loss identifies those more motivated and engaged individuals. Patients who have baseline factors predictive of long-term weight loss failure may benefit from additional support during the intervention. Additionally, if a patient does not achieve early weight loss, further support or transition to an alternate intervention where they may have increased success may be considered. Trial registration: Australian New Zealand Clinical Trial Registration Number (ACTRN) 12608000416392 https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=83071 |
Persistent Identifier | http://hdl.handle.net/10722/236625 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Gow, Megan L. | - |
dc.contributor.author | Baur, Louise A. | - |
dc.contributor.author | Ho, Mandy | - |
dc.contributor.author | Chisholm, Kerryn | - |
dc.contributor.author | Noakes, Manny | - |
dc.contributor.author | Cowell, Chris T. | - |
dc.contributor.author | Garnett, Sarah P. | - |
dc.date.accessioned | 2016-12-01T09:08:26Z | - |
dc.date.available | 2016-12-01T09:08:26Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | International Journal of Behavioral Nutrition and Physical Activity, 2016, v. 13, n. 1, p. 1 | - |
dc.identifier.uri | http://hdl.handle.net/10722/236625 | - |
dc.description.abstract | © 2016 Gow et al.Background: Lifestyle interventions in adolescents with obesity can result in weight loss following active intervention but individual responses vary widely. This study aimed to identify predictors of weight loss at 12- and 24-months in adolescents with obesity and clinical features of insulin resistance. Methods: Adolescents (n = 111, 66 girls, aged 10-17 years) were participants in a randomised controlled trial, the RESIST study, examining the effects of two diets differing in macronutrient content on insulin sensitivity. Eighty-five completed the 12-month program and 24-month follow-up data were available for 42 adolescents. Change in weight was determined by BMI expressed as a percentage of the 95th percentile (BMI95). The study physician collected socioeconomic data at baseline. Physical activity and screen time, and psychological dimensions of eating behavior were self-reported using the validated CLASS and EPI-C questionnaires, respectively. Stepwise multiple regressions were conducted to identify models that best predicted change in BMI95 at 12- and 24-months. Results: Mean BMI95 was reduced at 12-months compared with baseline (mean difference [MD] ± SE: -6.9 ± 1.0, P < 0.001) but adolescents had significant re-gain from 12- to 24-months (MD ± SE: 3.7 ± 1.5, P = 0.017). Participants who achieved greater 12-month weight loss had: greater 3-month weight loss, a father with a higher education, lower baseline external eating and parental pressure to eat scores and two parents living at home. Participants who achieved greater 24-month weight loss had: greater 12-month weight loss and a lower baseline emotional eating score. Conclusions: Early weight loss is consistently identified as a strong predictor of long-term weight loss. This could be because early weight loss identifies those more motivated and engaged individuals. Patients who have baseline factors predictive of long-term weight loss failure may benefit from additional support during the intervention. Additionally, if a patient does not achieve early weight loss, further support or transition to an alternate intervention where they may have increased success may be considered. Trial registration: Australian New Zealand Clinical Trial Registration Number (ACTRN) 12608000416392 https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=83071 | - |
dc.language | eng | - |
dc.relation.ispartof | International Journal of Behavioral Nutrition and Physical Activity | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Insulin resistance | - |
dc.subject | Weight loss | - |
dc.subject | Socioeconomic | - |
dc.subject | RESIST | - |
dc.subject | Predictors | - |
dc.subject | Pediatric | - |
dc.subject | Obesity | - |
dc.subject | Eating behaviors | - |
dc.title | Can early weight loss, eating behaviors and socioeconomic factors predict successful weight loss at 12- and 24-months in adolescents with obesity and insulin resistance participating in a randomised controlled trial? | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1186/s12966-016-0367-9 | - |
dc.identifier.scopus | eid_2-s2.0-84977566808 | - |
dc.identifier.volume | 13 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 1 | - |
dc.identifier.eissn | 1479-5868 | - |
dc.identifier.isi | WOS:000373194700001 | - |
dc.identifier.issnl | 1479-5868 | - |