@article{pmid38443322,

title = {Behavioural therapy for shift work disorder improves shift workers' sleep, sleepiness and mental health: A pilot randomised control trial},

author = {Annie Vallières and Alric Pappathomas and Séverine de Billy Garnier and Chantal Mérette and Julie Carrier and Tyna Paquette and Célyne H Bastien},

doi = {10.1111/jsr.14162},

issn = {1365-2869},

year  = {2024},

date = {2024-12-01},

journal = {J Sleep Res},

volume = {33},

number = {6},

pages = {e14162},

abstract = {The present study evaluates the efficacy of behavioural therapy adapted for shift work disorder with a randomised control design in a healthcare population. Forty-three night shift workers (m. age: 34 years; 77% women) experiencing shift work disorder were randomised to either the behavioural therapy for shift work disorder (BT-SWD) or a waiting-list control group offered after the waiting period. Participants completed questionnaires on insomnia, sleepiness and mental health pre- and post-treatment, pre- and post-waiting, and at follow-up, and a sleep diary. As night shift workers alternate between sleeping during the day after their night shifts and transitioning to nighttime sleep on days off, insomnia severity and sleep variables were analysed for daytime and nighttime sleep. The BT-SWD involved sleep restriction therapy, stimulus control and fixed sleep periods in the dark. Statistical analyses were performed under intent-to-treat and per-protocol approaches. Repeated-measures two-way ANCOVA analysis, controlling for age, sex and pre-treatment daytime total sleep time, was performed with Bonferroni corrections, and between-group effect sizes computed. Fourteen participants dropped out after randomisation. Under the intent-to-treat analysis, BT-SWD participants had a significant greater decrease in daytime insomnia severity and an increase in daytime total sleep time at post-treatment than the control group, with large between-group effect sizes (-1.25 and 0.89). These corresponding results were also significant with large effect sizes under the per-protocol analysis. Sleepiness, anxiety and depression levels improved at post-treatment and maintained at follow-up when the BT-SWD treated controls were added to the BT-SWD group. The behavioural therapy for shift work disorder can be used to improve the sleep and mental health of healthcare night workers.},

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pubstate = {published},

tppubtype = {article}

}

@article{pmid38485134,

title = {Digital cognitive behavioural therapy for insomnia reduces insomnia in nurses suffering from shift work disorder: A randomised-controlled pilot trial},

author = {Johanna Ell and Hanna A Brückner and Anna F Johann and Lisa Steinmetz and Lara J Güth and Bernd Feige and Heli Järnefelt and Annie Vallières and Lukas Frase and Katharina Domschke and Dieter Riemann and Dirk Lehr and Kai Spiegelhalder},

doi = {10.1111/jsr.14193},

issn = {1365-2869},

year  = {2024},

date = {2024-12-01},

journal = {J Sleep Res},

volume = {33},

number = {6},

pages = {e14193},

abstract = {Insomnia is a primary symptom of shift work disorder, yet it remains undertreated. This randomised-controlled pilot trial examined the efficacy of a digital, guided cognitive behavioural therapy for insomnia adapted to shift work (SleepCare) in nurses with shift work disorder. The hypothesis was that SleepCare reduces insomnia severity compared with a waitlist control condition. A total of 46 unmedicated nurses suffering from shift work disorder with insomnia (age: 39.7 ± 12.1 years; 80.4% female) were randomised to the SleepCare group or the waitlist control group. The primary outcome measure was the Insomnia Severity Index. Other questionnaires on sleep, mental health and occupational functioning, sleep diary data and actigraphy data were analysed as secondary outcomes. Assessments were conducted before (T0), after the intervention/waitlist period (T1), and 6 months after treatment completion (T2). The SleepCare group showed a significant reduction in insomnia severity from T0 to T1 compared with the control condition (β = -4.73, SE = 1.12, p < 0.001). Significant improvements were observed in sleepiness, dysfunctional beliefs about sleep, pre-sleep arousal, sleep effort, self-reported sleep efficiency and sleep onset latency. No significant effect was found in actigraphy data. Depressive and anxiety symptoms, cognitive irritation and work ability improved significantly. Overall, satisfaction and engagement with the intervention was high. SleepCare improved insomnia severity, sleep, mental health and occupational functioning. This is the first randomised-controlled trial investigating the efficacy of digital cognitive behavioural therapy for insomnia in a population suffering from shift work disorder with insomnia. Future research should further explore these effects with larger sample sizes and active control conditions.},

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pubstate = {published},

tppubtype = {article}

}

@article{pmid39327793,

title = {Predictability of sleep in insomnia: sleep patterns of patients from a sleep psychology clinic},

author = {Dave Laroche and Hans Ivers and Celyne H Bastien and Annie Vallières},

doi = {10.1111/jsr.14369},

issn = {1365-2869},

year  = {2024},

date = {2024-09-01},

journal = {J Sleep Res},

pages = {e14369},

abstract = {The present study aims at identifying sleep patterns in insomnia in a clinical sample using three strategies to define poor nights. Sleep diaries and self-reported questionnaires were collected from 77 clinical patients with insomnia. The conditional probabilities of observing a poor night after 1, 2, or 3 consecutive poor nights were computed according to three strategies with same criteria for sleep onset latency, wake after sleep onset, and sleep efficiency, but varying criterion for total sleep time. Latent profile analyses were conducted to derive sleep patterns. Uni- and multivariate analyses were conducted to characterise the sleep patterns identified. A total of 1586 nights were analysed. The strategy used significantly influenced the average percentage of reported poor nights. Two to three sleep patterns were derived per strategy. Within each strategy, sleep patterns differed from each other on sleep variables and night-to-night variability. Results suggest the existence of sleep patterns in insomnia among individuals consulting in psychological clinics. Adding a total sleep time of 6-h cut-off as a criterion to define poor nights increases the accuracy of the strategy to define poor night and allows to identify sleep patterns of poor nights in insomnia.},

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pubstate = {published},

tppubtype = {article}

}

@article{pmid37586843,

title = {The effectiveness of stimulus control in cognitive behavioural therapy for insomnia in adults: A systematic review and network meta-analysis},

author = {Mikael Demers Verreault and Élyse Granger and Xavier Neveu and Julia Pizzamiglio Delage and Célyne H Bastien and Annie Vallières},

doi = {10.1111/jsr.14008},

issn = {1365-2869},

year  = {2024},

date = {2024-05-01},

journal = {J Sleep Res},

volume = {33},

number = {3},

pages = {e14008},

abstract = {Stimulus control is part of the widely used cognitive behavioural therapy for insomnia. However, there is a lack of knowledge about its mechanisms of action and effectiveness when used alone. This systematic review with network meta-analysis aimed to evaluate stimulus control efficacy when used alone compared with cognitive behavioural therapy for insomnia or its components. The review also documented stimulus control mechanisms of action proposed by the authors. A search was conducted in several bibliographic databases (MEDLINE, PsycINFO, Embase, CINAHL, Psychology Behavioural Sciences Collection, Web of Science, and Cochrane Library) and in two registers from 1972 to June 2022. Randomised studies with adult participants presenting a diagnosis of insomnia and including at least one stimulus control instruction in a treatment group were included. Risk of bias was assessed with the Quality Assessment of Controlled Intervention Studies. Twenty-three studies were included and three network meta-analyses were conducted. The quality of included studies was generally poor. Results indicate that stimulus control is an effective intervention to improve insomnia compared with control conditions. Not all stimulus control instructions seem essential, especially those known to recondition the bedroom for sleep. The review challenges the classical conditioning hypothesis. Results should be interpreted cautiously given the small number of studies included, bias risk, and inconsistencies in the network meta-analysis. Rigorous research is needed in evaluating stimulus control efficacy and mechanisms.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{pmid35963823,

title = {National strategy on the integration of sleep and circadian rhythms into public health research and policies: Report from the Canadian Sleep and Circadian Network},

author = {Jean-Philippe Chaput and Geneviève Gariépy and Sachin R Pendharkar and Najib T Ayas and Charles Samuels and Annie Vallières and Judith R Davidson and Charles M Morin and Guido Simonelli and Catherine Bourguinat and Reut Gruber and Dominique Petit and Indra Narang and Valérie Viau and Julie Carrier},

doi = {10.1016/j.sleh.2022.06.005},

issn = {2352-7226},

year  = {2022},

date = {2022-10-01},

journal = {Sleep Health},

volume = {8},

number = {5},

pages = {551--563},

abstract = {Scientists in sleep and circadian rhythms, public health experts, healthcare providers, partners, and stakeholders convened in 2020 for a 2-day meeting organized by the Canadian Sleep and Circadian Network to develop a national strategy for integrating sleep and circadian rhythms into public health and policies in Canada. The objective of this paper is to present the national strategy that emerged from this meeting of 60 participants from across Canada. The meeting focused on 4 key target priorities: (1) atypical working schedules, (2) sleep and circadian rhythms of children and adolescents, (3) insomnia, and (4) impact of sleep apnea on health. Following constructive discussions, it was decided that the following 4 strategic objectives should be prioritized to accelerate the integration of sleep and circadian rhythms into public health policies in Canada: (1) increase public health sleep and circadian rhythm research, (2) increase public health education and knowledge mobilization on sleep, (3) inform and support public health sleep interventions and policies, and (4) promote sleep health training. Participants recommended that research and public health efforts address needs along the continuum of sleep health. The committee noted that strategies and interventions could differ across contexts, settings, sectors, and jurisdictions. The national strategy also identified high-priority research questions in public health and recommended mechanisms to build research capacity, providing a path forward for the integration of sleep and circadian rhythms into public health research and policies.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{pmid37279318,

title = {[Insomnia and suicide risk in cluster B personality disorder: A comparative cross-sectional study]},

author = {Magali Tisseyre and Alexandre Hudon and Charles-Édouard Giguère and Annie Vallières and Célyne Bastien and Félix-Antoine Bérubé and Lionel Cailhol},

issn = {1708-3923},

year  = {2022},

date = {2022-01-01},

journal = {Sante Ment Que},

volume = {47},

number = {2},

pages = {113--139},

abstract = {Objective The suicide mortality rate among people suffering from cluster B personality disorders is estimated at approximately 20%. High occurrence of comorbid depression and anxiety, as well as substance abuse, are known contributors to this risk. Not only have recent studies indicated that insomnia may be a suicide risk factor, but it is also thought to be highly prevalent in this clinical group. However, the mechanisms explaining this association are still unknown. It has been suggested that emotion dysregulation and impulsivity may mediate the link between insomnia and suicide. In order to better understand the association between insomnia and suicide in cluster B personality disorders, it is important to consider the influence of comorbidities. The aims of this study were first to compare the levels of insomnia symptoms and impulsivity between a group of patients with cluster B personality disorder and a healthy control group and second, to measure the relationships between insomnia, impulsivity, anxiety, depression, substance abuse and suicide risk within the cluster B personality disorder sample. Methods Cross-sectional study including 138 patients (mean age = 33.74; 58.7% women) with cluster B personality disorder. Data from this group were extracted from a Quebec-based mental health institution database (Signature bank: www.banquesignature.ca) and were compared to that of 125 healthy subjects matched for age and sex, with no history of personality disorder. Patient diagnosis was determined by diagnostic interview upon admission to a psychiatric emergency service. Anxiety, depression, impulsivity and substance abuse were also assessed at that time point via self-administered questionnaires. Participants from the control group visited the Signature center to complete the questionnaires. A correlation matrix and multiple linear regression models were used to explore relations between variables. Results In general, more severe insomnia symptoms and higher levels of impulsivity distinguished the group of patients with cluster B personality from the sample of healthy subjects, although groups did not differ on total sleep time. When all variables were included as predictors in a linear regression model to estimate suicide risk, subjective sleep quality, lack of premeditation, positive urgency, depression level and substance use were significantly associated with higher scores on the Suicidal Questionnaire-Revised (SBQ-R). The model explained 46.7% of the variance of scores at the SBQ-R. Conclusion This study yields preliminary evidence indicating the possible implication of insomnia and impulsivity in suicide risk for individuals with cluster B personality disorder. It is proposed that this association seems to be independent of comorbidity and substance use levels. Future studies may shed light on the possible clinical relevance of addressing insomnia and impulsivity in this clinical population.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{pmid34571477,

title = {Sleep in times of crises: A scoping review in the early days of the COVID-19 crisis},

author = {Guido Simonelli and Dominique Petit and Julia Pizzamiglio Delage and Xavier Michaud and Marie Denise Lavoie and Charles M Morin and Roger Godbout and Rebecca Robillard and Annie Vallières and Julie Carrier and Célyne Bastien},

doi = {10.1016/j.smrv.2021.101545},

issn = {1532-2955},

year  = {2021},

date = {2021-12-01},

journal = {Sleep Med Rev},

volume = {60},

pages = {101545},

abstract = {During the early days of the pandemic and in the context of a seemingly unknown global threat, several potential major sleep disruptors were identified by sleep researchers and practitioners across the globe. The COVID-19 pandemic combined several features that, individually, had been shown to negatively affect sleep health in the general population. Those features included state of crisis, restrictions on in-person social interactions, as well as financial adversity. To address the lack of a comprehensive summary of sleep research across these three distinctive domains, we undertook three parallel systematic reviews based on the following themes: 1) Sleep in times of crises; 2) Sleep and social isolation; and 3) Sleep and economic uncertainty. Using a scoping review framework, we systematically identified and summarized findings from these three separated bodies of works. Potential moderating factors such as age, sex, ethnicity, socioeconomic status, psychological predisposition, occupation and other personal circumstances are also discussed. To conclude, we propose novel lines of research necessary to alleviate the short- and long-term impacts of the COVID-19 crises and highlight the need to prepare the deployment of sleep solutions in future crises.},

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pubstate = {published},

tppubtype = {article}

}

@article{pmid34356162,

title = {Psychosocial Features of Shift Work Disorder},

author = {Annie Vallières and Chantal Mérette and Alric Pappathomas and Monica Roy and Célyne H Bastien},

doi = {10.3390/brainsci11070928},

issn = {2076-3425},

year  = {2021},

date = {2021-07-01},

journal = {Brain Sci},

volume = {11},

number = {7},

abstract = {To better understand Shift Work Disorder (SWD), this study investigates insomnia, sleepiness, and psychosocial features of night workers. The study compares night workers with or without SWD to day workers with or without insomnia. Seventy-nine night workers and 40 day workers underwent diagnostic interviews for sleep disorders and for psychopathologies. They completed questionnaires and a sleep diary for 14 days. The design was observatory upon two factors: Work schedule (night, day work) and sleep (good sleep, SWD/insomnia). Two-way ANCOVAs were conducted on psychosocial variables, and effect size were calculated. The clinical approach chosen led to distinct groups of workers. Night workers slept several periods (main sleep period after work, naps, nights on days off). High total wake time and low total sleep time characterized sleep in SWD. Most night workers with SWD still complained of sleepiness after main sleep. Cognitive activation distinguished groups of night workers. All other differences in psychosocial variables between night workers groups were similar to, but smaller than, the ones between day workers. The evaluation of SWD should consider all sleep periods of night workers with particular attention to self-reported total wake time, state sleepiness, and level of cognitive activation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{pmid32405918,

title = {Who Is Seeking Help for Sleep? A Clinical Profile of Patients in a Sleep Psychology Clinic},

author = {Annie Vallières and Alric Pappathomas and Taís Araújo and Megan R Crawford and Séverine de Billy Garnier},

doi = {10.1007/s12529-020-09882-9},

issn = {1532-7558},

year  = {2021},

date = {2021-04-01},

journal = {Int J Behav Med},

volume = {28},

number = {2},

pages = {207--213},

abstract = {BACKGROUND: The present study outlines a clinical profile of an ecologically valid population consulting for sleep difficulties at the Sleep Psychology Clinic of the Consultation service of the School of Psychology of Université Laval .nnMETHOD: Patients self-report to the sleep clinic. Following a phone screening interview, patients present to the clinic for a semi-structured clinical interview for sleep and psychopathology, which is conducted by psychologists and doctorate psychology students. A chart review of adult patients (56% female, M = 43.6 years) was conducted (between 2015 and 2018) to record diagnosed sleep, psychiatric, and medical conditions.nnRESULTS: There was a high level of comorbidity with an average of 2.85 diagnoses (any diagnosis combined) per patient (SD = 1.76), with 27% of the patients having at least four diagnoses. Reviewing specific types of disorders, 58.5% of patients presented with at least one comorbid psychiatric disorder, 27.5% with one medical comorbidity, or 39.5% with another sleep disorder alongside their primary sleep concern. Insomnia was the main sleep disorder (76%). Anxiety (77.8%) and depression (53.8%) were the predominant psychiatric disorders, while fibromyalgia (10.9%), hypertension (10.9%), and head trauma (9.1%) were the main medical conditions. Of patients with five diagnoses and more, 77.8% were taking on average 3.2 different types of medications. The number of diagnoses predicted the use of prescribed hypnotics and the use of any type of medications.nnCONCLUSION: This clinical profile emphasizes the reality of multiple morbidities, which may have implications for clinical decisions. Future research is required to evaluate transdiagnostic approaches for the sleep disorder patient with multiple morbidities.},

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}