This study examined the sleep and mood differences between premenopaus
al and perimenopausal women matched for age and sociodemographic varia
bles. Wrist actigraphy, Profile of Mood State (POMS), State-Trait Anxi
ety Inventory (STAI), a sleep questionnaire, and responses to a sleep
diary were recorded for a period of 1 week. It was found that the slee
p disruption of perimenopausal subjects was significantly greater than
that of the premenopausal group (p<0.05). Overall, the perimenopausal
group demonstrated a significant increase in sleep disruption and moo
d alterations when compared with the premenopausal group. Actigraphic
data showed that perimenopausal subjects experienced longer and more n
umerous arousals resulting in significantly less sleep (p<0.05). In ad
dition, perimenopausal subjects scored significantly higher (p<0.05) o
n the STAI and significantly lower on the Vigor subscale of the POMS (
p<0.01) than premenopausal subjects. Correlational analyses indicated
that sleep and mood changes were significantly related in the perimeno
pausal group, bur not in the premenopausal group. Taken together, thes
e results suggest that the mood changes experienced by the perimenopau
sal group may be mediated by sleep disruption. (C) 1997 Elsevier Scien
ce Inc.