Table 3. Standard regression coefficients (b) for weight-loss (kg)/body weight (kg) at the baseline using multiple regression analysis.

	Independent variables	R2	F	β	P
Model 1		0.281	46.2		<0.001
	Gender			–0.012	NS
	Employment pattern			0.097	0.036
	Changes in energy balance/bw			0.518	<0.001
Model 2		0.284	46.7		<0.001
	Gender			–0.033	NS
	Age			–0.107	0.018
	Changes in energy balance/bw			0.518	<0.001
Model 3		0.286	35.3		<0.001
	Gender			–0.021	NS
	Age			–0.079	NS
	Employment pattern			0.056	NS
	Changes in energy balance/bw			0.516	<0.001

Multiple linear regression analysis was conducted to investigate whether weight loss was independently related to gender, employment situation or energy balance. NS: nonsignificant (P≥0.05).