Table 4.

REM sleep and NREM sleep stages episode number for each third of the TST

	Former IDA	Nonanemic controls	p value
First third
NREM1	1.4 ± 1.1	2.0 ± 1.2	<0.06
NREM2	3.7 ± 1.2	3.4 ± 1.3	NS
SWS	2.4 ± 1.0	2.0 ± 0.6	NS
REM	1.2 ± 0.7	0.6 ± 0.7	<0.01
Second third
NREM1	1.2 ± 1.5	1.3 ± 1.1	NS
NREM2	3.7 ± 1.2	3.4 ± 1.3	NS
SWS	0.8 ± 0.6	1.1 ± 0.6	NS
REM	1.6 ± 0.7	2.0 ± 0.7	<0.05
Third third
NREM1	1.4 ± 1.5	0.9 ± 0.9	NS
NREM2	3.0 ± 1.1	3.0 ± 1.1	NS
SWS	0.8 ± 0.7	1.0 ± 0.7	NS
REM	2.6 ± 0.8	2.2 ± 0.8	<0.07

^*Values are means ± SD.