Table 3:

Comparison of Soft Tissue SUVs in Case and Control Subjects with Tongue Fat Data

	Patients with Sleep Apnea (n = 51)	Control Subjects (n = 26)	P Value*	P Value†	P Value‡
Primary soft tissue SUVs
Genioglossus (middle slice only)	1.26 ± 0.22	1.39 ± 0.31	0.0404	0.0205	0.0322
Genioglossus	1.28 ± 0.22	1.42 ± 0.32	0.0546	0.0153	0.0229
Control muscle SUVs
Masseter	1.02 ± 0.16	0.91 ± 0.24	0.0447	0.2124	0.1798
Pterygoid	1.14 ± 0.24	1.07 ± 0.24	0.2365	0.6268	0.7086
Subcutaneous fat deposits SUVs
Neck fat	0.44 ± 0.19	0.40 ± 0.19	0.4149	0.5845	0.5333
Submental fat	0.52 ± 0.21	0.52 ± 0.25	0.9536	0.9748	0.9070

Definition of abbreviation: SUV = standardized uptake value.

Significant differences (P < 0.05) are presented in bold.

^*P value from t test.

^†P value from linear regression adjusted for age, body mass index, sex, and race.

^‡P value from linear regression adjusted for age, body mass index, sex, race, and fat percentage in the lower retropalatal, upper retroglossal, and upper mid retroglossal regions of the tongue.