Table 2

Correlation coefficients for percentage change (%∆) in AHI with %∆ in anthropometric and CT-measured variables

Variable	N	%∆ AHI
Variable	N	R	p Value
Anthropometry
%∆ Weight	54	0.334^*	0.014
%∆ Neck circumference	53	0.265	0.055
%∆ Waist circumference	53	0.280	0.043
Upper airway
%∆ Length	51	0.385	0.005
%∆ Volume	51	0.115	0.423
Regional fat
%∆ Mid-face fat volume	47	0.231	0.118
%∆ Lower face fat volume	47	0.219	0.139
%∆ Fat pad volume	42	−0.069	0.665
%∆ VAT	51	0.356	0.010
%∆ SCAT	52	0.328	0.018

↵* Spearman's ρ.
AHI, apnoea-hypopnoea index; R, correlation coefficient; SCAT, abdominal subcutaneous adipose tissue; VAT, abdominal visceral adipose tissue.