SLEEP 2011 Abstract Supplement

A. Basic Science VIII. Behavior
well as REMS, microarchitecture must be assessed. NNDAs, particularly,
might emerge from NREMS. The finding that prazosin reduced
NREMS arousals suggests that it may help ameliorate PTSD symptoms
by consolidating NREMS.
Support (If Any): Research funded by USPHS Grant MH072897 to
A.R.M.
0210
IMPACT OF PRENATAL MATERNAL BELIEFS ON INFANTS’
NIGHTTIME SLEEP ARRANGEMENTS IN THE FIRST 3
MONTHS OF LIFE
Huang X 1 , Wang H 1 , Zhang L 1 , Liu X 2 , Ding H 3 , Jiang F 4 , Mauricio O 5
1
Children’s Health Care, National Center for Women and Children’s
Health, China CDC, Beijing, China, 2 Bronchoscopy Center, Affiliated
Children Hospital of Beijing Capital Medical University, Beijing,
China, 3 General Hospital of Chinese People’s Armed Police Forces,
Beijing, China, 4 Shanghai Xin Hua Hospital Affiliated with Shanghai
Jiaotong University School of Medicine, Shanghai, China, 5 The Procter
& Gamble Company, Cincinnati, OH, USA
Introduction: As part of an ongoing, multi-center longitudinal study we
report here, initial findings on the correlation of prenatal beliefs about
infant sleep with postnatal nighttime sleep practices, during the first 3
months after birth.
Methods: From 10 Maternal and Child Hygiene hospitals in nine cities
in China, 347 eligible women were enrolled in the study at approximately
34 weeks of pregnancy; after delivery 260 healthy, full-term infants
met inclusion criteria and were enrolled as study subjects. Prior to delivery,
all expectant mothers completed a questionnaire on attitudes towards
four aspects of infant sleep: sleep location, sleep position, state of
infant’s consciousness at the time of being put to sleep, and dealing with
nocturnal wakes. Following delivery, sleep diaries were administered
over 3 consecutive nights starting at10 and 28 days and 2 and 3 months
postnatally. The correlation of prenatal beliefs to postnatal infants’ sleep
practices was analyzed by Kappa consistency check.
Results: On prenatal survey, 79% of women expressed a preference
for the child to sleep in a separate crib in the same room with an adult
and11% anticipated co-sleeping with the child. On post-natal survey,
only 38% reported their child slept in an independent crib, whereas 57%
reported co-sleeping (prenatal to post-natal kappa = 0.06). Regarding
sleeping position, 55% preferred the supine position on prenatal survey
and 36% preferred putting the infant on the side; postnatally, the
respective proportions were 71% and 29% (kappa = 0.16). On when to
put the child to sleep, 63% indicated this should happen when the child
was drowsy but not yet asleep, whereas 31% indicated the infant should
be fully asleep; postnatally, 31% were putting the child to sleep when
drowsy, whereas 64% were waiting until he/she was fully asleep (kappa
= 0.02). Regarding night awakenings, 65% of the prenatal sample stated
they should wait a few minutes before taking action while 33% anticipated
taking immediate action; postnatally, the proportions reversed
with 76% taking immediate action and only 18 % waiting a few minutes
before taking action (kappa = 0.00).
Conclusion: With the one favorable exception of sleep position practices,
we conclude that prenatal beliefs are poor predictors of postnatal
sleep related practices and that opportunities exist for educational
interventions to improve postnatal sleep practices among primiparous
Chinese women.
0211
LOWER SUBJECTIVE SOCIOECONOMIC POSITION IS
ASSOCIATED WITH POORER SLEEP QUALITY AND
GREATER DAYTIME SLEEPINESS IN CHILDREN AND
ADOLESCENTS
Jarrin DC 1 , McGrath JJ 1 , Drake C 2
1
Psychology, Concordia University, Montreal, QC, Canada, 2 Sleep
Medicine, Henry Ford Hospital, Detroit, MI, USA
Introduction: In adults, low socioeconomic position is associated with
short sleep duration, poor sleep quality, more sleep complaints, and considerably
more accumulated sleep debt. While researchers have started
to examine whether a socioeconomic gradient exists for sleep problems
in adults, relatively little is known about this relationship in children and
adolescents. The aim of the present study was to identify whether a subjective
socioeconomic gradient exists for sleep duration, sleep quality
and daytime sleepiness, while controlling for parental objective indicators
of socioeconomic position.
Methods: Participants were part of the larger Healthy Heart Project and
included 244 families (parents aged 30 to 65 years: M=45.03, SD=6.13;
81.4% female; youth aged 8 to 18 years: M=12.66, SD=2.03; 46.3%
female). Total household income and parental education were used as
indicators of objective socioeconomic position. The MacArthur Scale
(adolescent version; Goodman et al., 2001) was used to measure youth
subjective socioeconomic position. Sleep duration was the difference
between self-reported bed- and wake-times. Perceived sleep quality
was rated on a 10-point Likert scale (1=poor to 10=excellent). Daytime
sleepiness was assessed with the self-report Pediatric Daytime Sleepiness
Scale (Drake et al., 2003).
Results: After adjusting for age, sex, and body mass index (BMI), lower
objective socioeconomic position was significantly associated with
shorter sleep duration (t=3.23, p