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The overall quality of life in chronic renal patients is significantly impacted by the quality of sleep. Despite its significance, the aspect of sleep is often disregarded during medical consultations and not included in the anamnesis and complaints. To assess the sleep quality of non-dialysis chronic renal patients, the Pittsburgh scale is a valuable tool. Our hypothesis suggests that poor sleep quality is correlated with worsened clinical and laboratory indicators.
This study conducted a cross-sectional analysis on 134 patients who were part of a follow-up cohort of non-dialytic chronic kidney disease patients. Clinical and laboratory data were collected over a 3-year period. Independent variables were compared using either t-test or Mann-Whitney test, while categorical variables were verified using the Chi-squared test. Spearman's coefficient was used to evaluate correlations between variables.
According to the study's findings, most of the participants, specifically 69.2%, had poor sleep quality, while only 20% were diagnosed with sleep disorders. The study did not find any relationship between blood pressure control, ABI, or laboratory variables and poor sleep quality. However, the study did discover positive correlations between good sleep quality with glycated hemoglobin levels and poor sleep quality such and age. Among the questionnaire components that were most impacted by poor sleep quality were sleep latency and duration. Additionally, subjective sleep quality and sleep latency were found to be positively correlated with age.
Based on our study, we found that being single or widowed and having increased serum calcium levels (within normal limits) were associated with a perception of poor sleep quality. Additionally, poor sleep quality and sleep disorders were observed to be highly prevalent in the population we studied, particularly among older individuals. We also observed a correlation between poor sleep quality and altered levels of glycated hemoglobin.