Night Shift Work Research Articles

Associations between long-term night shift work and incidence of chronic obstructive pulmonary disease: a prospective cohort study of 277,059 UK Biobank participants

BackgroundLittle is known about the effects of night shifts and their interactions with genetic factors on chronic obstructive pulmonary disease (COPD). In this study, we aim to investigate relationships between long-term night shift work exposure and COPD risk, and assess modification effects of genetic predisposition.MethodsA total of 277,059 subjects who were in paid employment or self-employed were included in the UK Biobank. Information on current and lifetime employment was obtained, and a weighted COPD-specific genetic risk score (GRS) was constructed. We used Cox proportional hazard models to investigate associations between night shift work and COPD risk, and their interaction with COPD-specific GRS.ResultsThe cohort study included 277,059 participants (133,063 men [48.03%]; mean [SD] age, 52.71 [7.08] years). During a median follow-up of 12.87 years, we documented 6558 incidents of COPD. From day work, irregular night shifts to regular night shifts, there was an increased trend in COPD incidence (P for trend < 0.001). Compared with day workers, the hazard ratio (HR) and 95% confidence interval (CI) of COPD was 1.28 (1.20, 1.37) for subjects with rarely/sometimes night shifts and 1.49 (1.35, 1.66) for those with permanent night shifts. Besides, the longer durations (especially in subjects with night shifts ≥ 10 years) and increasing monthly frequency of night shifts (in workers with > 8 nights/month) were associated with a higher COPD risk. Additionally, there was an additive interaction between night shifts and genetic susceptibility on the COPD risk. Subjects with permanent night shifts and high genetic risk had the highest risk of COPD (HR: 1.90 [95% CI: 1.63, 2.22]), with day workers with low genetic risk as a reference.ConclusionsLong-term night shift exposure is associated with a higher risk of COPD. Our findings suggest that decreasing the frequency and duration of night shifts may offer a promising approach to mitigating respiratory disease incidence in night shift workers, particularly in light of individual susceptibility.

Quality of Work Life among Nurses Working in Secondary Level Hospitals in Bangladesh

Background: Nurses play a crucial role in the healthcare delivery system. The phrase "quality of work life" (QWL) describes the range of elements that affect how successfully nurses can balance their personal and professional lives.Objective: To assess the level of quality of work life among nurses working in secondary-level hospitals in Bangladesh.Materials and Methods: To assess the quality of the work-life balance, a cross-sectional study including 232 nurses working in secondary-level hospitals was carried out from January to December 2022. The WALTON QWL scale was used to construct the questionnaire.Results: The QWL score average was 126.0±9.3. About two-thirds of the nurses (71.1%) among them reported moderate QWL. The nurses' QWL was statistically significant when considering their recent night shifts, their capacity to eat at the proper times, their ability to spend time with friends and family, their conflicts with coworkers, and their conflicts with doctors (p˂0.05). The majority of nurses who worked night shifts in the past month (75.1%) reported having moderate QWL, which included being able to take breaks during work hours (66.7%), experiencing sudden changes in the shift schedule (68.2%), not being able to eat at the right time (79.6%), not having many opportunities to spend time with family and friends (81.85), and having conflicts with coworkers (84.1%) and doctors (87.5%).Conclusion: The study revealed that most of the nurses experienced moderate levels of QWL. The prevalence of QWL among nurses may have affected patient care, satisfaction with care, increased medical errors, and decreased overall hospital job efficiency. Enhancing nurses' QWL will help to raise the standard of nursing care given to patients at all levels and, as a result, increase their productivity. KYAMC Journal Volume: 14, No: 03, October 2023: 151-157.

Assess the Quality Of Life of Nurses Working In Shift Duties In Public Sector Hospital

Working in shifts is a prerequisite for nurses to help patients, jeopardizing their own physical and mental health as well as having an influence on their social and family life, consequently leading to a lack of attentiveness and subpar job performance, putting the patients' lives in peril. This study aims to assess the nurses’ quality of life working in shift duties. 255 nurses participated in a cross-sectional analytical study of a public sector hospital. Participants were selected through consecutive non-probability sampling techniques. Data was collected using demographic characteristics and the WHO SF36 questionnaire and analyzed through SPSS version 21.0. The mean age was 31.6 ±7.3 years with the majority of 67.8% female nurses. The mean experience was 8.7 ± 6.4 years, duty hours 39 ± 11.7 hours, and 31% were working night shifts. Comparing the shift duties with all seven health parameters of quality of life, and general health, social activities energy and emotions were found statistically significant P&lt;0.05. Compared with experience, only general health was found to have a statistically significant association at P&lt;0.005 whereas no other parameter was found to have any association. Age and marital status showed a statistically significant association moreover, education also had an association with 3 health parameters. However, the experience was found to have a statistically significant association with mental health (P&lt;0.007). The current study concluded that the health and quality of life of nurses are negatively impacted by the stress of their shift work. It may also cast a shadow over the delivery of care, which may be one of the variables influencing patients' outcomes.

Effects of working conditions on the perception of night work safety and health effects on nurses.

To examine night working conditions by shift work type and identify the effects of night working conditions on nurses' perceptions of shift work safety and health effects. Night work is the main factor affecting nurses' health. However, the safety of night working conditions has not been sufficiently examined in previous studies. This study used a cross-sectional research design and an online survey using a tool released by the Australian Manufacturing Workers' Union, and the responses of 348 shift work nurses in Korea were analyzed. Logistic regression analysis was used to examine the effects of shift work conditions on the perceived safety of night work and health effects. The STROBE reporting guidelines were utilized, and data were collected from December 1 to December 31, 2021. The adjusted logistic regression analysis showed that perceived threat to safety and the health effects of shift work were not significant according to shift type. However, night-shift-work nurses who worked alone (P=0.003), lacked an emergency recovery system (P=0.026), and had difficulty commuting perceived a threat to their health (P=0.007). Additionally, nurses who experienced loss of concentration (P=0.006) and inadequate rest time (P<0.001) perceived the health effects of shift work. Urgent monitoring of night work conditions is necessary for the 2-shift work type. Nurses must work night shifts together and an emergency system should be established for their safety. Night work conditions should be improved to prevent the hazards of night work and its negative health effects on nurses. This study suggests the necessity of a policy to enhance night work safety, including emergency coping systems and sufficient inter-shift rest time.

Pengaruh Shift Kerja terhadap Stres Kerja pada Lima Orang Karyawan PT Asam Jawa, Kota Pinang

The Occupational Health and Safety Branch (2008) explains that optimizing work shift arrangements can help reduce the potential health impacts on employees. Shift work involves various schedules and work patterns, and its arrangement must take into account a number of factors, such as the length of the shift or the number of hours worked per shift, team size, rest breaks, rotation periods or speed, and shift timing. The aim of this research is to determine the influence of shift work on the stress levels of PT Pegawai Asam Jawa employees in Kota Pinang, and whether there is a relationship between shift work variables and employee stress at PT Asam Jawa in Kota Pinang, using qualitative methodology. This study involved 114 participants. The research indicates that although morning shift workers do not experience high levels of stress, night shift workers do, resulting in decreased overall productivity in the afternoon and evening. Worker performance, health, and psychosocial issues are the subjects of these complaints. Except for night shift workers who complain of being less focused due to poor quality, there are no physical complaints experienced by morning shift workers and night shift workers in terms of body complaints, so the impact of shift work on employee stress can be observed.

Chronic blue light-emitting diode exposure harvests gut dysbiosis related to cholesterol dysregulation.

Night shift workers have been associated with circadian dysregulation and metabolic disorders, which are tightly coevolved with gut microbiota. The chronic impacts of light-emitting diode (LED) lighting at night on gut microbiota and serum lipids were investigated. Male C57BL/6 mice were exposed to blue or white LED lighting at Zeitgeber time 13.5-14 (ZT; ZT0 is the onset of "lights on" and ZT12 is the "lights off" onset under 12-hour light, 12-hour dark schedule). After 33 weeks, only the high irradiance (7.2 J/cm2) of blue LED light reduced the alpha diversity of gut microbiota. The high irradiance of white LED light and the low irradiance (3.6 J/cm2) of both lights did not change microbial alpha diversity. However, the low irradiance, but not the high one, of both blue and white LED illuminations significantly increased serum total cholesterol (TCHO), but not triglyceride (TG). There was no significant difference of microbial abundance between two lights. The ratio of beneficial to harmful bacteria decreased at a low irradiance but increased at a high irradiance of blue light. Notably, this ratio was negatively correlated with serum TCHO but positively correlated with bile acid biosynthesis pathway. Therefore, chronic blue LED lighting at a high irradiance may harvest gut dysbiosis in association with decreased alpha diversity and the ratio of beneficial to harmful bacteria to specifically dysregulates TCHO metabolism in mice. Night shift workers are recommended to be avoid of blue LED lighting for a long and lasting time.

The impact of night shift stress and sleep disturbance on nurses quality of life: case in Palestine Red Crescent and Al-Ahli Hospital

BackgroundNurses play a vital role in providing round-the-clock care to patients, but the challenges associated with working night shifts can have significant implications for their well-being and quality of life.MethodsThis cross-sectional study aimed to investigate the impact of night shift stress and sleep disturbance on the quality of life among nurses working in Palestine Red Crescent Society and Al-Ahli Hospital. Convenience sampling was used to recruit 189 full-time registered nurses with at least one year of job experience. The participants completed a questionnaire assessing night shift stress, sleep disturbance, and quality of life. Descriptive statistics, correlation analysis, and path analysis were conducted to analyze the data.ResultsThe results reveal that quality of life has positive and low relationship with both night shift stress and sleep disturbances. Results also reveal that night shift stress had a direct negative impact on the quality of life of nurses. Sleep disturbance was found to mediate the relationship between night shift stress and quality of life, indicating that higher levels of night shift stress were associated with increased sleep disturbance, which, in turn, led to poorer quality of life outcomes.ConclusionThese findings highlight the importance of addressing night shift stress and sleep disturbance among nurses to enhance their well-being and improve the quality of care provided to patients. In conclusion, this study contributes to the existing literature by demonstrating the detrimental effects of night shift stress and sleep disturbance on the quality of life of nurses. It emphasizes the importance of implementing interventions and creating supportive work environments that address the unique challenges faced by nurses working night shifts.

The interrelationships between sleep regularity, obstructive sleep apnea, and hypertension in a middle-aged community population.

Little is known about the interrelationships between sleep regularity, obstructive sleep apnea (OSA) and important health markers. This study examined whether irregular sleep is associated with OSA and hypertension, and if this modifies the known association between OSA and hypertension. Six hundred and two adults (age mean(SD) = 56.96(5.51) years, female = 60%) from the Raine Study who were not evening or night shift workers were assessed for OSA (in-laboratory polysomnography; apnea-hypopnea index ≥ 15 events/hour), hypertension (doctor diagnosed, or systolic blood pressure ≥140 mmHg and/or diastolic ≥90 mmHg) and sleep (wrist actigraphy for ≥5 days). A sleep regularity index (SRI) was determined from actigraphy. Participants were categorized by tertiles as severely irregular, mildly irregular, or regular sleepers. Logistic regression models examined the interrelationships between SRI, OSA and hypertension. Covariates included age, sex, body mass index, actigraphy sleep duration, insomnia, depression, activity, alcohol, smoking, and antihypertensive medication. Compared to regular sleepers, participants with mildly irregular (OR 1.97, 95% confidence intervals [CI] 1.20 to 3.27) and severely irregular (OR 2.06, 95% CI: 1.25 to 3.42) sleep had greater odds of OSA. Compared to those with no OSA and regular sleep, OSA and severely irregular sleep combined had the highest odds of hypertension (OR 2.34 95% CI: 1.07 to 5.12; p for interaction = 0.02) while those with OSA and regular/mildly irregular sleep were not at increased risk (p for interaction = 0.20). Sleep irregularity may be an important modifiable target for hypertension among those with OSA.

Chrono Dentistry and the association between shift work and oral health in a representative sample population: An Internet survey

Background: Most physiological processes in mammals display circadian rhythms that are driven by the endogenous circadian clock. Disruptions of the circadian clock have been associated with nearly every major human disease. With that as the central idea, this study attempted to see the variations in the form and function of the oral cavity with respect to the circadian cycle by comparing the oral health problems of daytime-only workers with those who worked night shifts. Aims: To study the relationship between the circadian clock and oral diseases by comparing the oral health problems and lifestyle of daytime-only and night shift workers. Methods and Material: A pre-validated questionnaire containing 12 close-ended questions was circulated among 40 night and 40 day shift workers. Appropriate statistical analysis was carried out. Results: Increased incidence of extractions and decay was found in night shift workers. Of all, 65% of the day shift workers had lost a few of their teeth to decay and extractions while the same was found in 70% of the night shift workers. Pain in teeth was also found to be prevalent in night shift workers with 80% of the participants claiming that they experienced pain in their teeth while 60% of the day shift workers experienced such pain. 90% of the participants claimed to be non-smokers in the day shift work. In the night shift, 52.5% of participants were current smokers. Smoking was prevalent among night shift workers. Conclusions: The results of this study show a clear relationship between night shift work and oral health problems. Hence, stronger measures to provide oral health maintenance support for night shift workers are needed.

Ishrana radnika koji rade u noćnoj smeni - razlog ili izgovor za nepravilnu ishranu

The availability of artificial light and light-emitting devices has changed human life in relation to time, enabling 24-hour health care, trade, and production, as well as the expansion of social life around the clock. In Europe, about 21% of the labor force consists of shift workers. 10% of the employed population work evening shifts or the night shift, and 7% of employees in Europe regularly work the night shift. According to the Bureau of Labor Statistics, more than 15 million Americans work the night shift. Shift work, especially night-time work, seriously affects dietary habits. It is known that night-time work produces a conflict between the socially determined rhythm of eating and the circadian biological rhythms related to the feeling of hunger, satiety, as well as the metabolism itself. Night meals cause disorders of intestinal motility, affect digestion, absorption, but also the utilization of nutrients and possible medical therapy (if the individual has one). From the point of view of chronobiology, humans belong to diurnal species, which to a certain extent explains why night shift workers have a decreased appetite at night, when the human body is programmed for rest and fasting, as well as for endogenous mobilization of glucose. From the psychosocial aspect, shift workers usually experience a discrepancy between their daily routines (including the meal schedule) and those they have with family and friends, which further leads to even more severe disorders of dietary habits. However, it is difficult to give dietary recommendations regarding nutrition. Firstly, there are no clear views on whether night shift workers should eat during the night hours or not. Secondly, even if night eating is encouraged, definitive evidence is lacking on which types of food should be consumed and which should be avoided. Thirdly, the most nutritious foods may not be available at that time of night. Finally, eating at night certainly has an impact on the metabolism. With all the above in mind, we have tried to provide some useful guidelines regarding these issues.

Associations of Night Shift Status During Pregnancy With Small for Gestational Age and Preterm Births.

Shift work, including night shift work, during pregnancy has been associated with adverse birth outcomes such as small for gestational age (SGA) infants and preterm births. This study, conducted in South Korea using the Korean CHildren's ENvironmental health Study (Ko-CHENS) cohort, aimed to investigate the association between shift work and night shift status during pregnancy and adverse birth outcomes. The Korean Ko-CHENS is a nationwide prospective birth cohort study of children's environmental diseases, conducted by the Ministry of Environment and the National Institute of Environmental Research. This study included pregnant women recruited from 2015 to 2020 for Ko-CHENS Core Cohorts, and 4,944 out of a total of 5,213 pregnant women were selected as final subjects. A logistic regression model was used to identify the risk factors affecting SGA births, preterm births, and low-birth-weight infants, and the odds ratio (OR) was adjusted. This was confirmed by calculating ORs. Maternal age, infant sex, maternal educational status, body mass index, smoking status, alcohol consumption status, parity, gestational diabetes mellitus, preeclampsia, and abortion history were used as adjusted variables. No statistically significant differences were observed in the birth outcomes or maternal working patterns. There were no significant differences in the adjusted odds ratios (aORs) of SGA and preterm births between the non-worker, day worker, and shift worker. However, there was a significant difference in the aORs of SGA between non-workers and night shift workers. (aORs [95% confidence interval], 2.643 [1.193-5.859]). Working during pregnancy did not increase the risk of SGA or preterm birth, and night shift work did not increase the risk of preterm birth. However, night-shift work increases the risk of SGA.

Influence of night shift work on circadian heart-rate rhythm in nurses: using a Holter electrocardiogram that can be continuously measured for two weeks.

The influence of night shift work on circadian heart-rate rhythm was examined in nurses engaged in shift work using a Holter electrocardiogram, continuously measured for two weeks, and cosine periodic regression analysis. We enrolled 11 nurses who were engaged in a two-shift system. The R2 value in the cosine regression curve of heart-rate rhythm (concordance rate), indicating the concordance rate between the actual heart rate over 24 h and the cosine regression curve approximated by the least-squares procedure, was significantly lower in the night shift (0.40 ± 0.15) than in the day shift (0.66 ± 0.19; p<0.001). Moreover, the amplitude was significantly lower and the acrophase was significantly delayed in the night shift. Thus, the circadian heart-rate rhythm was disrupted by the night shift work. Although the heart-rate acrophase recovered during the day and two days after the night shift, the concordance rate and amplitude did not recover, indicating that the influence of night shift work on circadian heart-rate rhythm might persist even two days after the night shift. Based on these results, adequate clinical attention should be paid to how to spend the day and two days after the night shift to correct the circadian heart-rate rhythm disruption caused by night shift work.

Mortality from Aortic Disease in Relation with Sleep Duration at Night and Daytime Napping: The Japan Collaborative Cohort Study.

Few studies have investigated the impact of sleep duration at night and daytime napping on mortality from aortic disease. In this study, we examined the associations of sleep duration at night with daytime napping and mortality from aortic disease. We followed 67,269 participants (26,826 men and 40,443 women, aged 40-79 years) who were not night shift workers and had no history of stroke, heart disease, or cancer. The baseline survey was conducted in 1988-1990, and follow-up continued until the end of 2009. Sleep duration at night was classified into three categories: ≤ 6, 7, and ≥ 8 hours/day. We also asked the presence or absence of daytime napping. Hazard ratios (HRs) for mortality from aortic disease with 95% confidence intervals (CIs) were estimated using the Cox proportional hazards model. During an average 16.3-year follow-up period, we observed 87 deaths from aortic dissection and 82 from aortic aneurysms. There was no association between sleep duration at night and mortality from aortic disease, but daytime napping was associated with an increased risk of mortality from total aortic disease; the multivariable-adjusted HRs were 1.48 [95% CIs: 1.08-2.02]. Furthermore, the stratified analysis revealed a stronger association with medium sleep duration (7 hours at night) compared to the other shorter and longer sleep duration: the multivariable-adjusted HR for aortic disease, 2.02 [1.16-3.52]. Daytime napping but not sleep duration at night was associated with an increased risk of mortality from aortic disease.

Human serum proteomics reveals a molecular signature after one night of sleep deprivation.

Sleep deprivation is highly prevalent and caused by conditions such as night shift work or illnesses like obstructive sleep apnea. Compromised sleep affects cardiovascular-, immune-, and neuronal systems. Recently, we published human serum proteome changes after a simulated night shift. This pilot proteomic study aimed to further explore changes in human blood serum after 6 hours of sleep deprivation at night. Human blood serum samples from eight self-declared healthy females were analyzed using Orbitrap Eclipse mass spectrometry (MS-MS) and high-pressure liquid chromatography. We used a within-participant design, in which the samples were taken after 6 hours of sleep at night and after 6 hours of sleep deprivation the following night. Systems biological databases and bioinformatic software were used to analyze the data and comparative analysis were done with other published sleep-related proteomic datasets. Out of 494 proteins, 66 were found to be differentially expressed proteins (DEPs) after 6 hours of sleep deprivation. Functional enrichment analysis revealed the associations of these DEPs with several biological functions related to the altered regulation of cellular processes such as platelet degranulation and blood coagulation, as well as associations with different curated gene sets. This study presents serum proteomic changes after 6 hours of sleep deprivation, supports previous findings showing that short sleep deprivation affects several biological processes, and reveals a molecular signature of proteins related to pathological conditions such as altered coagulation and platelet function, impaired lipid and immune function, and cell proliferation. Data are available via ProteomeXchange with identifier PXD045729. This paper is part of the Genetic and other molecular underpinnings of sleep, sleep disorders, and circadian rhythms including translational approaches Collection.

The Effect of Night Shift on Blood Pressure in Healthcare Workers.

Individuals across all age groups may experience elevated blood pressure due to a combination of internal and environmental factors. Factors influencing arterial pressure include diet, stress, sleep patterns, and lifestyle. This study aims to investigate the susceptibility to high blood pressure among occupational groups working night shifts. The study included healthcare worker participants who had at least six night shifts per month. A control group consisted of participants performing the same roles during daytime. Participants with chronic diseasesor those taking blood pressure-affecting medication were excluded. Holter recordings were made over a minimum of 48 hours, including both a free day and a work day. The study involved 114 participants-55 in the study group and 59 in the control group. Statistically significant differences were noted between the groups in the daylight-night ratios of systolic and diastolic pressures, with P values of 0.006 and 0.005, respectively. The systolic daylight-night difference was -5.7 ± 5.5% in the study group and -9.0 ± 7.0% in the control group. The diastolic daylight-night difference was -7.9 ± 9.6% in the study group and -12.7 ± 8.2% in the control group. Occupations with nighttime work schedules are often associated with non-dipping blood pressure patterns due to sleep disturbances. It is crucial to consider the blunted dipping of blood pressure induced by night shift work when assessing and monitoring hypertension and related medical conditions.

Sexual violence and associated factors among female large-scale industry workers in Bahir Dar city administration, Amhara region, Ethiopia.

sexual violence is currently a serious public health problem affecting women´s health. Globally, 1 in 3 women faces sexual violence in their lifetime. Female industry workers are at an increased risk of sexual violence. Assessing the magnitude and factors associated with sexual violence among female industrial workers is important for interventions. The objective was to assess the prevalence and factors associated with sexual violence among female large-scale industries workers in Bahir Dar, Ethiopia, 2021. institution-based cross-sectional study was conducted on 807 female industry workers from September to October 2021. Participants were selected by systematic random sampling. The data were collected by a structured questionnaire. Data entry and analysis were done by Epi data v.3.1 and SPSS v.23, respectively. Multivariable logistic regression analysis was done to identify factors. Adjusted odds ratios were computed at 95%CI. A P-value below 0.05 was used to declare association. the prevalence of sexual violence were 59.4% (95% CI; 56.0%-62.6%). The significantly associated factors include; age less than twenty-five (AOR=4.01, 95%CI; 2.81, 10.83), never-married women (AOR=3.07, 95%CI; 1.11, 8.46), being secondary education (AOR=2.65, 95%CI; 1.51, 4.66), being contract employee (AOR=4.65, 95%CI; 1.92, 11.22), drinking alcohol (AOR=3.01, 95%CI; 1.49, 6.09), and night work shift (AOR=9.01, 95%CI; 4.53, 17.93). high rate (59.4%) of sexual violence was reported. Age, marital status, educational status, contract type of work agreement, drinking alcohol, and working night work shift were risk factors. Hence, emphasis on creating safe working environment & transportation, education on reproductive rights and reporting of sexual violence.

Condições de Trabalho Docente: uma escola do campo no semiárido piauiense

ABSTRACT Teaching working conditions are the set of resources and circumstances necessary for teachers to carry out their work and have an impact on the teaching-learning process. The objective of the research presented in this article was to investigate the conditions of teaching work in a rural high school located in a semi-arid in Piauí, Brazil. The qualitative approach was conducted through interviews with seven teachers who work night shifts in an annex of school, which serves young people from different rural communities. It was found that the working conditions offered to teachers are unsatisfactory in terms of the functions they perform, the employment relationship, the workload, transport conditions, infrastructure and the environmental conditions of the school space. The results made visible working conditions and how they impacted teachers' practice, reflecting on the teaching-learning process.

Cardiometabolic diseases according to the type and degree of hearing loss in noise-exposed workers.

This study aimed to determine the association between cardiometabolic diseases, including metabolic syndrome, hypertension, and diabetes, and the type and degree of hearing loss in noise-exposed workers. A total of 237,028 workers underwent air conduction pure tone audiometry in 2015 to assess their health and diagnose cardiometabolic diseases. The study defined metabolic syndrome, hypertension, and diabetes using blood pressure, fasting blood sugar, cholesterol, and triglyceride levels. Mid-frequency hearing loss was defined as ≥ 30 dB at 2,000 Hz, whereas high-frequency hearing loss was ≥ 40 dB at 4,000 Hz. The average air conduction hearing thresholds at these frequencies were used to determine hearing loss degrees. The odds ratio (OR) of combined exposure to noise and night-shift work in all cardiometabolic diseases was higher than that of noise exposure alone. The risk of cardiometabolic diseases was dose-response, with higher hearing loss causing higher ORs. The ORs of hypertension compared with the normal group were 1.147 (1.098-1.198), 1.196 (1.127-1.270), and 1.212 (1.124-1.306), and those of diabetes were 1.177 (1.119-1.239), 1.234 (1.154-1.319), and 1.346 (1.241-1.459) for mild, moderate, and moderate-severe hearing loss, respectively. Workers who are exposed to noise tend to demonstrate high risks of hearing loss and cardiometabolic diseases; thus, bio-monitoring of cardiometabolic diseases, as well as auditory observation, is necessary.

A cross-sectional study on the effect of altered sleep patterns on working memory among nursing professionals

Background: Sleep is a critical component of existence and vital for the rejuvenation of the body. A minimum of 7 h of sleep is needed for adults for optimal wellness. In the present condition, extended periods of wakefulness are a common occurrence. Such wakefulness can be acute total sleep deprivation or chronic partial sleep restriction. Both forms can negatively impact cognitive abilities. It is prevalent among nursing professionals, who play a vital role in health care, remaining alert during working hours, especially night shifts. Aims and Objectives: This study aims to examine the effects of altered sleep patterns on working memory among nursing personnel working day and night shifts. Materials and Methods: The necessary documents for conducting the study were obtained from the institution and the participants. For this cross-sectional study, 31 nursing staff, age group of 25–40 years, males – six, and females – 25 were chosen according to the selection criteria. They were posted to wards on rotational day and night shifts. Rey–Osterrieth figure copy and recall test (Rey–Osterrieth complex figure test [ROCF]) was used for assessing working memory. The performance was based on a copy score and a recall score. Results: A paired “t” test with one-way repeated within the subject analysis of variance test was applied for analysis. Recall scores of ROCF were significantly less. Copy scores of ROCF were also less but statistically insignificant. Conclusion: The present study showed that the recall scores were significantly less in nursing professionals at the end of the night shift duration indicating poor working memory.

Validity of self-reported sleep duration in the Cancer Prevention Study- 3.

We examined the one-year test re-test reliability and validity criterion of survey-assessed sleep duration collected from two separate questions. The Activity Validation Sub Study included 751 participants of the Cancer Prevention Study-3 study to further investigate rest/activity cycles. Sleep duration was collected using three methods: survey, Daysimeter device, and sleep diary. Survey-assessed sleep duration was collected using 2 different questions, each with different response options (categorical and continuous). Selected participants (n = 170) were asked to wear a Daysimeter device for seven consecutive days for two non-consecutive quarters. Participants were excluded from the current study due to incomplete/implausible survey or device data or reported working night shift. We calculated reliability of pre- and post-survey sleep duration for both survey question using Spearman correlation. We used the method of triads to estimate the validity coefficient (VC) between the three sleep duration measurements in the present study and the "true" latent sleep duration measure, and bootstrapping methods to calculate the 95% confidence intervals (95%CI). Of 119 participants included in the study (52.10% male), test-retest correlation showed strong and moderate correlations for sleep duration collected continuously and categorically, respectively. The VC for survey-assessed continuous sleep duration was 0.82 (95%CI 0.71, 0.90) for weekday and 0.68 (95%CI 0.46, 0.83) for weekend. Performance of the VC was slightly weaker for survey-assessed categorical sleep duration (weekday VC = 0.57 95%CI 0.42, 0.71; weekend VC = 0.47 95%CI 0.29, 0.62). The two survey-assessed sleep duration questions used in the AVSS and CPS-3 cohorts are valid approximations of sleep duration.