Abstract:Objective To explore the risk factors of sleep disturbances in patients under peritoneal dialysis. Methods Totally 175 peritoneal dialysis patients form our peritoneal dialysis center were included. Demographic, clinical and laboratory characteristics, beck depression scale score-II (BDI-II), self-rating anxiety scale score (SAS) and the pittsburgh sleep index (PSQI) of each patients were collected. According to patients’ PSQI, they were divided into two groups named “normal group” (PSQI ≤ 5 points) and “poor sleep group (PSQI > 5 points). Results Depression, anxiety, total sleep score, iPTH and hs-CRP in sleep disorder group were higher than those in better sleep group (P < 0.05), while hemoglobin, BMI and total kt/V in poor sleep group were lower than those in normal group (P < 0.05). iPTH, hs-CRP, the scales of BDI-II and SAS was significantly higher than normal group (r s = 0.363, 0.450 and 0.354, P < 0.05), and PSQI was negatively correlated with hemoglobin level and total Kt/V (r s = -0.332 and -1.89, P < 0.05). Moreover, the BDI-II score and iPTH were independent risk factors of PSQI (P < 0.05). According to patients’ hemoglobin, they were divided into three anemia groups, the difference between the two groups was statistically significant; the PSQI of mild anemia group was higher than that of normal group (P < 0.05); and that of moderate anemia group was higher than that of mild anemia group (P < 0.05); there was no significant difference in PSQI between moderate anemia group and severe anemia group (P > 0.05). Conclusions Sleep disturbances are common among peritoneal dialysis patients, which may be related to anemia, dialysis adequacy, iPTH and depression.