Association between negative psychology and sleep quality in dialysis patients during the COVID-19 pandemic.
Liuyan Huang, Fan Zhang, Rong Zhu and 4 others
PMID 36807533WHAT IT FOUND
90.2% of dialysis patients reported poor sleep.
Higher depression and stress scores were linked to a higher chance of poor sleep; anxiety was not. This is association, not proof that treating depression or stress improves sleep.
Key findings
0190.2% of the 378 dialysis-dependent CKD patients reported poor sleep quality, defined as a PSQI score above 5 on the 0 to 21 scale.
02After adjustment, each 2.4-point SD increase in depression score was associated with a 49% higher risk of poor sleep quality, and each 7.1-point SD increase in stress score was associated with a 95% higher risk; each 1.6-point SD increase in anxiety was not significant.
03The association between negative psychology and poor sleep did not differ by dialysis modality in interaction testing.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study was a one-time cross-sectional survey, so it cannot show that depression or stress caused poor sleep. Participants were recruited by purposive sampling from three Shanghai centres, so they may not represent all dialysis patients. Sleep quality, anxiety, depression, and stress were all self-reported, and the study did not perform an a priori sample size calculation. The findings were collected during the Shanghai COVID-19 pandemic and apply to dialysis-dependent CKD patients, not necessarily to pre-dialysis or transplant patients.
Declared interests
Funded by the Municipal Human Resources Development Program for Outstanding Leaders in Medical Disciplines in Shanghai (2017BR023). The supplied text does not state author conflicts of interest.
The easy way to misread this
Do not conclude that treating depression or stress will improve sleep in dialysis patients. This was a cross-sectional survey, so it shows association at one time point, not cause or effect.