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Association Between Anemia Subtypes and Insomnia Symptoms in Community‐Dwelling Older Adults
Author(s) -
ChenEdinboro Lenis,
MurrayKolb Laura,
Simonsick Eleanor,
Ferrucci Luigi,
Allen Richard,
Payne Martha,
Spira Adam
Publication year - 2015
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.29.1_supplement.392.7
Subject(s) - insomnia , anemia , medicine , ferritin , transferrin saturation , iron deficiency , sleep (system call) , depression (economics) , iron deficiency anemia , pediatrics , psychiatry , macroeconomics , computer science , economics , operating system
Insomnia and anemia can lead to poor health. We determined the cross‐sectional association between anemia and insomnia symptoms in 1,066 adults (71.6±10.7 yr) from the Baltimore Longitudinal Study of Aging. Anemia status categories were non‐anemic, iron‐deficient anemic, and anemic without iron deficiency. Iron measures included ferritin, transferrin saturation, mean cell volume, and hemoglobin. Subjects reported sleep duration and insomnia variables from the Women's Health Initiative Insomnia Rating Scale: waking up several times at night, trouble falling asleep, waking earlier than planned, trouble getting back to sleep, and sleep quality. In models adjusted for demographics, BMI, smoking, alcohol, medical conditions, Center for Epidemiologic Studies Depression Scale, and Restless Legs Syndrome, iron‐deficient anemics had longer sleep duration than non‐anemics (B=‐0.62, 95% CI ‐1.16‐(‐0.08)). Anemic adults without iron deficiency had more nighttime awakenings than non‐anemics (B=0.39, 95% CI 0.04‐0.74)). Results suggest that anemia subtypes are differentially associated with insomnia‐related variables. We need studies with objective sleep measures to further examine the association between anemia and disturbed sleep.