Table 2.

PERMANOVA analysis results to determine if the investigated contrasts or parameters contributed to beta diversity of the samples. Neither body mass index (BMI) nor age significantly impacted beta diversity when only baseline fecal samples (from the first session; n = 9) were considered (see main text). Baseline, baseline sample; d2, day 2; HOMA-IR, Homeostatic model assessment of insulin resistance; NS, normal sleep; OGTT, oral glucose tolerance test; PSD, partial sleep deprivation. All P-values are two-sided.

Variable	P value	Sample count
Time point	0.991	18, 18
Age	0.001	36
BMI	0.004	36

Paired tests	P value	Sample count
d2 PSD_vs. d2 NS	0.581	9, 9
Baseline NS vs. d2 NS	0.455	9, 9
Baseline PSD vs. d2 PSD	0.632	9, 9
HOMA-IR d2	0.121	18
OGTT Matsuda index	0.235	18