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. 2022 Oct 27;17(10):e0276165. doi: 10.1371/journal.pone.0276165

Table 4. Regression analysis of differences between mid- and pre-pandemic sleep disturbance (PROMIS) (as outcome) and Fitbit sleep measures (REM and deep sleep).

Dependent/outcome: PROMIS (F’20 -F’19)
Model Variables entered R2 B SE (B) β t p
1 %REM (F’20 -F’19) 0.269 -0.466 0.199 -0.518 -2.348 0.033
2 %REM (F’20 -F’19) 0.269 -0.471 0.210 -0.524 -2.246 0.041
Gender   -0.444 3.718 -0.028 -0.119 0.907
1 %deep (F’20 -F’19) 0.248 -0.328 0.143 -0.498 -2.300 0.035
2 %deep (F’20 -F’19) 0.250 -0.337 0.156 -0.512 -2.164 0.047
Gender   -0.574 3.251 -0.042 -0.176 0.862

Model 1: unadjusted regression

Model 2: adjusted for sex

B: unstandardized coefficient

SE (B): standard error for coefficient B

β: standardized coefficient