Sleep disorders in pregnancy.
BACKGROUND
The precise function of sleep in animals and human beings is still unknown, and any sort of physical, social or psychological variation may change the normal sleep-wake cycle.


OBJECTIVE
This research aims is to determine the sleep disorders (SD) for each of the three trimesters of the pregnancy comparing them to the pre-pregnancy state (PG).


METHODS
SD were investigated in three hundred pregnant women 11- to 40-years-old through with a brief clinical interview based on directed questions. One hundred pregnant women were considered for each trimester.


RESULTS
The rate of pregnant women with insomnia increased by 23% in the 2nd trimester (p< 0.005); the rate for excessive daytime sleepiness (EDS) by 15% in the 1st trimester (p<0.003), 55% in the 2nd trimester (p<0.001) and by 14% in the 3rd trimester (p<0.002); the rate for mild sleepiness increased by 33% in the 2nd trimester (p<0.002) and by 48% in the 3rd trimester (p<0.001); the rate for specific awakenings increased by 63% in the 1st trimester, by 80% in the 2nd trimester and by 84% in the 3rd trimester (p<0.001).


CONCLUSIONS
SD were more frequent during pregnancy comparatively to PG state, mostly at the expenses of EDS and specific awakenings.
Lopes
Eliane Aversa
EA
Sleep Disorders Center, Department of Neurology, Federal University of Sao Paulo, Sao Paulo, SP, Brazil.
Carvalho
Luciane Bizari Coin de
LB
Seguro
Priscila Bernal da Costa
PB
Mattar
Rosiane
R
Silva
Ademir Baptista
AB
Prado
Lucila B Fernandes do
LB
Prado
Gilmar Fernandes do
GF
D000293:Adolescent; D000328:Adult; D001938:Brazil / Q000453:epidemiology; D002648:Child; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis / Q000453:epidemiology*; D011264:Pregnancy Trimesters; D015995:Prevalence; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology