Table 6.

Multiple regression analysis models (stepwise method) with the GAGS score as a dependent variable to estimate the predictive value of anthropometric measurements, BIA-parameters assessed, and adherence to the MD in patients with acne

Parameters	Multiple regression analysis
	R2	β	t	p value*
Model 1
PREDIMED score	0.239	− 0.504	− 4.09	< 0.001
Model 2
PhA (°)	0.213	− 0.478	− 3.81	< 0.001

In the first model included anthropometric measurements, BIA-parameters, and PREDIMED score, PREDIMED score entered at the first step. In the second model including only BIA-parameters, PhA was entered at the first step

GAGS Global Acne Grading System, PREDIMED PREvención con DIeta MEDiterránea, PhA phase angle

*A p value in bold type denotes a significant difference (p < 0.05)