| BNTa | PPVTb | Semantic verbal fluency | Phonemic verbal fluency | ||||
| r | p Value | r | p Value | r | p Value | r | p Value |
Daytime SO2 | 0.230* | 0.023 | 0.259* | 0.011 | 0.167 | 0.102 | 0.042 | 0.681 |
PO2 | 0.331** | 0.001 | 0.299** | 0.003 | 0.201* | 0.048 | 0.173 | 0.091 |
PCO2 | −0.136 | 0.184 | −0.128 | 0.212 | −0.044 | 0.665 | −0.067 | 0.517 |