Hair Cortisol Concentration, Weight Loss Maintenance and Body Weight Variability: A Prospective Study Based on Data From the European NoHoW Trial
- PMID: 34659105
- PMCID: PMC8511813
- DOI: 10.3389/fendo.2021.655197
Hair Cortisol Concentration, Weight Loss Maintenance and Body Weight Variability: A Prospective Study Based on Data From the European NoHoW Trial
Abstract
Several cross-sectional studies have shown hair cortisol concentration to be associated with adiposity, but the relationship between hair cortisol concentration and longitudinal changes in measures of adiposity are largely unknown. We included 786 adults from the NoHoW trial, who had achieved a successful weight loss of ≥5% and had a body mass index of ≥25 kg/m2 prior to losing weight. Hair cortisol concentration (pg/mg hair) was measured at baseline and after 12 months. Body weight and body fat percentage were measured at baseline, 6-month, 12-month and 18-month visits. Participants weighed themselves at home ≥2 weekly using a Wi-Fi scale for the 18-month study duration, from which body weight variability was estimated using linear and non-linear approaches. Regression models were conducted to examine log hair cortisol concentration and change in log hair cortisol concentration as predictors of changes in body weight, change in body fat percentage and body weight variability. After adjustment for lifestyle and demographic factors, no associations between baseline log hair cortisol concentration and outcome measures were observed. Similar results were seen when analysing the association between 12-month concurrent development in log hair cortisol concentration and outcomes. However, an initial 12-month increase in log hair cortisol concentration was associated with a higher subsequent body weight variability between month 12 and 18, based on deviations from a nonlinear trend (β: 0.02% per unit increase in log hair cortisol concentration [95% CI: 0.00, 0.04]; P=0.016). Our data suggest that an association between hair cortisol concentration and subsequent change in body weight or body fat percentage is absent or marginal, but that an increase in hair cortisol concentration during a 12-month weight loss maintenance effort may predict a slightly higher subsequent 6-months body weight variability.
Clinical trial registration: ISRCTN registry, identifier ISRCTN88405328.
Keywords: hair cortisol; obesity; stress; weight loss; weight loss maintenance.
Copyright © 2021 Larsen, Turicchi, Christensen, Larsen, Jørgensen, Mikkelsen, Horgan, O’Driscoll, Michalowska, Duarte, Scott, Santos, Encantado, Palmeira, Stubbs and Heitmann.
Conflict of interest statement
RS consults for Slimming World UK via Consulting Leeds, a wholly owned subsidiary of the University of Leeds. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
References
-
- Aune D, Sen A, Prasad M, Norat T, Janszky I, Tonstad S, et al. . BMI and All Cause Mortality: Systematic Review and Non-Linear Dose-Response Meta-Analysis of 230 Cohort Studies With 3.74 Million Deaths Among 30.3 Million Participants. BMJ (2016) 353:i2156. doi: 10.1136/bmj.i2156 - DOI - PMC - PubMed
-
- Ng M, Fleming T, Robinson M, Thomson B, Graetz N, Margono C, et al. . Global, Regional, and National Prevalence of Overweight and Obesity in Children and Adults During 1980-2013: A Systematic Analysis for the Global Burden of Disease Study 2013. Lancet (2014) 384:766–81. doi: 10.1016/S0140-6736(14)60460-8 - DOI - PMC - PubMed
-
- Delahanty LM, Pan Q, Jablonski KA, Watson KE, McCaffery JM, Shuldiner A, et al. . Genetic Predictors of Weight Loss and Weight Regain After Intensive Lifestyle Modification, Metformin Treatment, or Standard Care in the Diabetes Prevention Program. Diabetes Care (2012) 35(2):363–6. doi: 10.2337/dc11-1328 - DOI - PMC - PubMed
