Health Effects of Sleep Quality in Premutation Carrier Mothers of Individuals With Fragile X Syndrome.
Robert S Dembo, Jinkuk Hong, Leann Smith DaWalt and 2 others
PMID 37104861WHAT IT FOUND
Poor sleep predicted more depressive symptoms four years later for all mothers.
For physical health conditions, poor sleep was only harmful for mothers with mid-range CGG repeats, not those with lower or higher repeat counts.
Key findings
01Poor sleep quality at baseline predicted more depressive symptoms four years later for the entire group of premutation carrier mothers.
02The link between poor sleep and physical health conditions depended on genetic makeup; it was significant only for mothers with mid-range CGG repeats.
03Sleep difficulties in the child with fragile X syndrome were a significant predictor of both maternal physical health conditions and depressive symptoms.
STILL TO COME
How it was doneWhat they found
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
Sleep quality was measured by self-report, which may not match objective sleep data. The study could not determine cause and effect, only associations. Physical health was measured as a count of conditions, ignoring severity or onset. Information about other medications taken by the mothers was not available. The sample was restricted to co-residing dyads, so results may not apply to mothers who do not live with their child with FXS.
Declared interests
The research was supported by the National Institute of Health (Extramural). The authors declared no conflicts of interest.
The easy way to misread this
Do not assume that poor sleep causes physical health problems for all premutation carriers. This study found that link only for the subgroup with mid-range CGG repeats. For others, the association was not significant.