. 2021 Aug 11;11:16313. doi: 10.1038/s41598-021-95659-3

Table 1.

Alpha diversity indexes.

Model	Groups	Chao1		Shannon		Source
Model	Groups	Mean	P-value	Mean	P-value	Source
The first-night effect	PS150	222 ± 6.1	< 0.001	5.4 ± 0.3	0.624	This study
The first-night effect	Veh	190 ± 5.5	< 0.001	5.2 ± 0.6	0.624	This study
Pentobarbital induced sleep	PS150	288 ± 8.6	< 0.001	5.5 ± 0.4	0.03	²⁷
Pentobarbital induced sleep	Veh	237 ± 8.2	< 0.001	5.8 ± 0.2	0.03	²⁷

Statistical significance was calculated using the t-test.