Table 3.

REM sleep and NREM sleep stages (% of TST) for each third of the TST

	Former IDA	Nonanemic controls	p value
First third
NREM1	2.5 ± 3.3	2.0 ± 1.5	NS
NREM2	15.4 ± 4.3	15.2 ± 5.6	NS
SWS	15.7 ± 5.9	17.2 ± 6.0	NS
REM	3.1 ± 2.4	1.3 ± 1.8	<0.006
Second third
NREM1	1.8 ± 1.9	1.4 ± 1.8	NS
NREM2	18.5 ± 6.7	16.9 ± 6.9	NS
SWS	4.0 ± 3.3	4.8 ± 3.4	NS
REM	6.5 ± 2.8	7.1 ± 3.4	NS
Third third
NREM1	2.3 ± 2.8	1.2 ± 2.1	NS
NREM2	20.0 ± 6.9	18.5 ± 7.0	NS
SWS	3.2 ± 3.8	4.4 ± 4.4	NS
REM	6.9 ± 2.8	9.8 ± 4.0	<0.002

^*Values are means ± SD.