TABLE 1 ] .

Polysomnographic Measures in the 50 Children Enrolled in the HRP-LRP-PSG Comparative Study

Measure	Mean ± SD
Time in bed, min	515.0 ± 28.9
TST, min	442.1 ± 43.3
LNREM, min	27.6 ± 17.7
LREM, min	113.4 ± 62.2
Stage N1, % TST	13.2 ± 7.0
Stage N2, % TST	35.9 ± 8.8
Stage N3, % TST	28.5 ± 8.6
Stage REM, % TST	22.4 ± 5.5
Arousal index, per h TST	10.3 ± 5.5
PLMS index, per h TST	0.04 ± 0.3

HRP = home respiratory polygraphy; LNREM = non-rapid eye movement sleep latency; LREM = rapid eye movement sleep latency; LRP = in-laboratory respiratory polygraphy; PLMS = periodic leg movements during sleep; PSG = polysomnography; TST = total sleep time.