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The percentage differences and Standard Errors in HRV indices contrasting SWS and REM, according to SDB status.
Footnote: (a) In both non-SDB and moderate SDB groups, HF, RMSSD, and SDNN decreased, and LF increased, from SWS into REM sleep.
(b) The SWS-REM changes were more pronounced in moderate SDB children, and the between group differences for HF (−24% in moderate SDB vs. −10% in no-SDB) and RMSSD (−27% vs. −12%) were significant at p < 0.05.
