Table 3.

Factors associated with longitudinal percent weight gain based on multivariable mixed effect model (n = 575)

Variable	Adjusted mean difference of % weight regaina (95% CI)	p-value
Male vs. Female
At Challenge 1–2	2.17 (0.71, 3.62)	0.0037
At Challenge 2–3	3.93 (0.85, 7.00)	0.0126
At Challenge 3–4	1.58 (−2.44, 5.60)	0.4390
At Challenge 4–5 & more	0.08 (−4.24, 4.40)	0.9695
% weight loss for first Challenge	2.29 (0.85, 3.72)	0.0020
Previous Challenge final weight	−0.02 (− 0.03, − 0.01)	0.0014
Age at first Challenge	− 0.04 (− 0.09, 0.00)	0.0651
English vs. Spanish	− 0.20 (−1.48, 1.08)	0.7591
Group vs. Individual	1.40 (0.33, 2.48)	0.0107
Year gap between Challenges	0.80 (0.18, 1.43)	0.0124

^aPositive estimates means more weight gain

% weight gain = ((initial weigh-in at second Challenge – final weigh-in at first Challenge)/(initial weigh-in at second Challenge) × 100%)