Eurasian Journal of Chemical, Medicinal and Petroleum Research

Abstract Introduction: Pregnancy-related hormonal and vascular changes may increase nasal mucosal congestion, particularly during the third trimester, when sleep disturbance is also common. Nasal obstruction can promote mouth breathing, nocturnal discomfort, and fragmented sleep. This study aimed to evaluate the effect of NOSE score on sleep quality in primigravid women during the third trimester of pregnancy.

Material and methods: This descriptive cross-sectional study will be conducted at Tabriz University of Medical Sciences in 2026 on 66 primigravid women in the third trimester of pregnancy, selected by convenience sampling. The main variables will include demographic and obstetric characteristics, NOSE score, sleep quality indices, and pregnancy-related sleep disruptors such as nocturia, reflux, back pain, fetal movement-related awakening, and nocturnal breathing discomfort.

Results: Among 66 primigravid women, poor sleep quality was associated with significantly higher NOSE scores than good sleep quality (56.84 ± 18.27 vs. 31.46 ± 14.92, p < 0.001), with severe nasal obstruction occurring more often in poor sleepers (39.47% vs. 10.71%, p = 0.012). NOSE score correlated with worse sleep quality (r = 0.58, p < 0.001) and remained an independent predictor in adjusted analysis (B = 0.07, p = 0.001).

Conclusion: Poor sleep quality in third-trimester primigravid women was significantly associated with greater nasal obstruction severity. Higher NOSE scores independently predicted worse sleep quality, suggesting that nasal symptoms may represent an important and potentially modifiable contributor to sleep disturbance during late pregnancy.

Abstract Introduction: Nurses working in intensive care units (ICUs) face high levels of stress due to frequent exposure to critical and end-of-life situations. This can result in death anxiety and poor sleep quality, both of which negatively affect their well-being and job performance. This study investigates the relationship between death anxiety and sleep quality among ICU nurses in West Azerbaijan.

Material and Methods: This cross-sectional study was conducted on 200 ICU nurses selected through stratified random sampling from hospitals in West Azerbaijan. Data were collected using a demographic questionnaire, the Templer Death Anxiety Scale (TDAS), and the Pittsburgh Sleep Quality Index (PSQI). Statistical analysis, including Pearson correlation and multiple regression, was performed to examine the relationship between death anxiety and sleep quality. Significance was set at p < 0.05.

Results: The mean death anxiety score among nurses was 37.5 ± 8.9, with female nurses reporting significantly higher scores than male nurses (39.2 ± 8.7 vs. 33.8 ± 9.2, p < 0.001). The average PSQI score was 9.3 ± 3.4, indicating poor sleep quality in 73% of participants. A positive correlation was found between death anxiety and PSQI scores (r = 0.56, p < 0.001), and death anxiety was a significant predictor of poor sleep quality (β = 0.42, p < 0.001).

Conclusion: This study highlights a strong association between death anxiety and poor sleep quality among ICU nurses. Addressing these issues through training, supportive work environments, and mental health interventions is essential to enhance nurses' well-being and patient care quality.