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Objective sleep of older primiparous J apanese women during the first 4 months postpartum: An actigraphic study
Author(s) -
Iwata Hiroko,
Mori Emi,
Tsuchiya Miyako,
Sakajo Akiko,
Saeki Akiko,
Maehara Kunie,
Ozawa Harumi,
Morita Akiko,
Maekawa Tomoko
Publication year - 2015
Publication title -
international journal of nursing practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 55
eISSN - 1440-172X
pISSN - 1322-7114
DOI - 10.1111/ijn.12391
Subject(s) - actigraphy , medicine , sleep (system call) , postpartum depression , obstetrics , pregnancy , insomnia , psychiatry , biology , computer science , genetics , operating system
This longitudinal study was designed to examine objective sleep parameters of older primiparous J apanese women during the first 4 months postpartum using actigraphy. The participants were 18 older primiparae (Mean ( SD ) = 37.06 (2.62) years, range 35–44 years) who gave birth to healthy neonates at one of three urban J apanese hospitals. Objective sleep quality was measured using actigraphy for 48 h at 1, 2 and 4 months postpartum. The F riedman test was used to test for differences in sleep parameters across time. Sleep duration ( SMIN ) increased significantly from 2 months (Mean ( M ) = 301.94 min) to 4 months ( M = 372.78 min). Sleep efficiency ( SE ) increased significantly from 1 month (73.52%) to 2 (86.66%) and 4 months (89.05%). Waking after sleep onset ( WASO ) decreased significantly from 1 month ( M = 114.64 min) to 2 ( M = 40.18 min) and 4 months ( M = 38.36 min) and long waking episodes ( LWEP ) significantly decreased from 1 month (4.67) to 2 (2.69) and 4 months (3.12). Persistent postpartum sleep problems can be a sign of postpartum depression as well as health problems among infants.