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. Author manuscript; available in PMC: 2021 Jan 26.
Published in final edited form as: Int J Obes (Lond). 2020 Jul 26;44(10):2011–2022. doi: 10.1038/s41366-020-0644-1

Table 2.

Associations of pre-treatment demographic, behavioral, and hormonal characteristics with change in BMI z-score by FBT.

Ba 95% CIb βc P-value
Sex (F vs. M) −0.057 −0.220, 0.106 −0.12 0.48
Ethnicity (White/Non-Hispanic vs. Non-white/Hispanic) 0.088 −0.068, 0.245 0.19 0.26
Annual Household Income (Below vs. Above median) −0.032 −0.195, 0.132 −0.067 0.69
BMI z-score 0.195 −0.052, 0.443 0.26 0.12
Fat mass % 0.011 0.000, 0.022 0.32 0.05
Activity 0.002 −0.002, 0.005 0.15 0.37
Healthy Eating Index 0.003 −0.003, 0.010 0.17 0.30
Change in Hunger score by meal 0.001 −0.002, 0.004 0.14 0.41
Change in Fullness score by meal −0.001 −0.004, 0.001 −0.20 0.24
Hunger scores during study (AUC) −4.52e-06 −1.63e-05, 7.23e-06 −0.13 0.44
Fullness scores during study (AUC) −3.67e-06 −1.98e-05, 1.25e05 −0.08 0.65
Calories consumed at ad libitum buffet (% of daily need) −0.001 −0.005, 0.003 −0.11 0.52
Log(Leptin) 0.038 −0.088, 0.164 0.10 0.55
HOMA-IR 0.009 −0.014, 0.031 0.14 0.43
a

Unstandardized regression coefficient.

b

95% CI of the unstandardized regression coefficient.

c

Standardized regression coefficient. Negative regression coefficients indicate greater reduction of BMI z-score by FBT associated with increased value of independent variable. All independent predictors measured pre-treatment (BMI z-score at Week 1 of FBT). Annual household income was calculated as below or above local regional median (https://www.deptofnumbers.com/income/washington/seattle/) for the reporting period. Activity is moderate and vigorous levels (average min/d from 7 days of consecutive wear). Healthy Eating Index calculated based on 2010 criteria. Hunger and fullness ratings assessed by visual analog scale. Change in appetite ratings were calculated from before to after the standardized meal. Hunger and fullness scores during study are area under the curve (AUC) for hunger and fullness ratings calculated by the trapizoidal method and included all serial ratings throughout the pre-treatment study visit day. N=37 (except for N=36 change in appetite scores, N=35 log(leptin), 33 HOMA).