Functional impairment and quality of life in newly diagnosed adults attending a tertiary ADHD clinic in Ireland.

BACKGROUND: Attention Deficit-Hyperactive Disorder (ADHD) is a neurodevelopmental disorder, often persisting into adulthood. AIMS: To investigate the levels of functionality and quality of life (QoL) in adult patients newly diagnosed with ADHD and to compare with those without an ADHD diagnosis. METHODS: Consecutive patients who were referred to and assessed in a tertiary adult ADHD clinic enrolled in the study. Diagnosis of ADHD was based on DSM-5 criteria. Functionality was measured using the Weiss Functional Impairment Rating Scale (WFIRS) and the Global Assessment of Functioning Scale (GAF). QoL was assessed with the Adult ADHD Quality of Life Questionnaire (AAQoL). RESULTS: Three-hundred and forty participants were recruited, 177 (52.1%) females. Of them 293 (86.2%) were newly diagnosed with ADHD. Those with ADHD had significant lower functionality as it was measured with the WFIRS and GAF, and worse QoL (AAQoL) compared to those without. In addition, a significant correlation between GAF and WFIRS was found. CONCLUSIONS: The results show that adults with ADHD have decreased functionality and worse QoL when compared against those presenting with a similar symptomatology, but no ADHD diagnosis. ADHD is not just a behavioural disorder in childhood, but a lifelong condition with accumulating problems that can lead to lower QoL and impaired functioning throughout adulthood.

"We're seen as part of the supply chain of medicines rather than as the professionals that we are": The wellbeing of community pharmacists during the COVID response.

INTRODUCTION: Challenges facing community pharmacists in delivering and adapting services during the COVID-19 response have been reported. However, few qualitative studies have examined the impact of these experiences on their wellbeing, and what supports the profession requires in the future. AIM(S): To examine the work-related experiences and psychosocial needs of community pharmacists situated in the Republic of Ireland arising from the COVID-19 response. METHOD: 11 pharmacists and 1 representative were interviewed and data analysed through inductive thematic analysis. RESULTS: Work experiences were characterised by increased workload linked to multiple roles pharmacists played during the pandemic. Remaining open, meeting the social and medical needs of patients unable to easily access other primary services exerted its toll on pharmacists while at the same time providing a sense of professional fulfilment. Participants felt contributions made to the community during COVID-19 went largely unrecognised by the wider healthcare structure. This added to a prior sense of professional disenchantment arising from long-standing under-resourcing, lack of clinical autonomy and high administrative burden eroding their sense of purpose and meaning. Informal, peer-support networks were preferred over formal psychological support initiatives. CONCLUSIONS: The post-pandemic environment is an opportune time for policy makers to reconsider the role of community pharmacists. Greater clinical autonomy beyond dispensing of medicines, for example, for example, would also serve to enhance the sense of purpose and meaning of pharmacists as healthcare professionals. The longer-term well-being of community pharmacists is contingent on recognition of the value that community pharmacy bring both to the healthcare system and wider society as a whole.

Does the Etiology, Phenomenology and Motor Subtype of Delirium Differ When It Occurs in Patients With An Underlying Dementia?: A Multi-Site, International Study.

OBJECTIVES: To compare the etiology, phenomenology and motor subtype of delirium in patients with and without an underlying dementia. METHODS: A combined dataset (n = 992) was collated from two databases of older adults (>65 years) from liaison psychiatry and palliative care populations in Ireland and India. Phenomenology and severity of delirium were analysed using the Delirium Symptom Rating Scale Revised (DRS-R98) and contributory etiologies for the delirium groups were ascertained using the Delirium Etiology Checklist (DEC). Delirium motor subtype was documented using the abbreviated version of the Delirium Motor Subtype Scale (DMSS4). RESULTS: Delirium superimposed on dementia (DSD) showed greater impairment in short term memory, long term memory and visuospatial ability than the delirium group but showed significantly less perceptual disturbance, temporal onset and fluctuation. Systemic infection, cerebrovascular and other Central nervous system etiology were associated with DSD while metabolic disturbance, organ insufficiency and intracranial neoplasm were associated with the delirium only group. CONCLUSION: The etiology and phenomenology of delirium differs when it occurs in the patient with an underlying dementia. We discuss the implications in terms of identification and management of this complex condition.

Burnout in mental health services in Ireland during the COVID-19 pandemic.

BACKGROUND: Burnout is a consequence of chronic occupational stress. Specific work-related factors may contribute to burnout experienced by those working in mental health services (MHS), many of which have increased since the COVID-19 pandemic. AIMS: To examine personal, work- and patient-related burnout among MHS staff in Ireland during the COVID-19 pandemic, and explore the impact of work-related conditions on burnout. METHOD: We conducted a cross-sectional survey of three MHS across Ireland utilising a study-specific questionnaire, the Copenhagen Burnout Inventory and the Effort-Reward Imbalance scale. RESULTS: Of 396 participants, 270 (70.6%) were female. Moderate and high personal burnout was experienced by 244 (64.1%) participants; work-related burnout by 231 (58.5%) participants and patient-related burnout by 83 (21.5%) participants. Risk factors for both personal and work-related burnout were female gender, urban service, time spent outside main responsibilities, overcommitment, high score on the Effort-Reward Imbalance scale and intention to change job. Being younger, with high workload and deterioration of personal mental health during the pandemic was associated with higher personal burnout, whereas a lack of opportunity to talk about work-related stress contributed to work-related burnout. Fewer factors were associated with patient-related burnout, namely overcommitment, working in urban services and poorer physical and mental health during the COVID-19 pandemic. CONCLUSIONS: High levels of personal and work-related burnout were found among mental health workers. The weak association with COVID-19-related factors suggest levels of burnout predated the pandemic. This has implications for MHS given the recognised additional work burden created by COVID-19.

Perspectives of psychiatric trainees and examiners on the assessment of communication skills during an online clinical examination: a qualitative study.

BACKGROUND: Effective doctor-patient communication is a core competency for healthcare professionals. With the pivot to online clinical education and assessment due to the COVID-19 pandemic, there was a need to explore the views of psychiatric trainees and examiners on assessment of communication skills during online high stakes postgraduate examinations. METHODS: The study was designed as descriptive qualitative research. All candidates and examiners of the September and November 2020 sitting of online Basic Specialist Training exam (a clinical Objective Structured Clinical Examination exam completed in the first 4 years of psychiatry training) were invited to participate. The respondents were interviewed by Zoom which was transcribed verbatim. Data were analyzed by NVivo20 pro and various themes and subthemes were drawn using Braun and Clarke thematic analysis. RESULTS: A total of seven candidates and seven examiners were interviewed with an average duration of 30 minutes and 25 minutes, respectively. Four main themes emerged: Communication, Screen optimization, Continuation postpandemic and Overall experience. All candidates preferred to continue an online format post pandemic for practical reasons e.g., avoiding travel and overnight stay, while all examiners preferred to go back to in-person Objective Structured Clinical Examination. However, continuation of online Clinical Formulation and Management Examination was agreed by both groups. CONCLUSION: The participants were largely satisfied with the online examination but did not consider it equal to face-to-face for picking up nonverbal cues. Overall minimal technical issues were reported. These findings may be helpful to modify current psychiatry membership examinations or similar assessments in other countries and specialties.

Work-related experiences of consultant psychiatrists during the COVID-19 response: qualitative analysis.

BACKGROUND: Research has begun to draw attention to the challenges mental health professionals faced in delivering services during the COVID-19 pandemic response. However, few studies have examined the specific experiences of consultant psychiatrists. AIMS: To examine the work-related experiences and psychosocial needs of consultant psychiatrists situated in the Republic of Ireland arising from the COVID-19 response. METHOD: We interviewed 18 consultant psychiatrists and analysed data using inductive thematic analysis. RESULTS: Work-related experience of participants was characterised by increased workload associated with assumption of guardianship of physical and mental health of vulnerable patients. Unintended consequences of public health restrictions increased case complexity, limited availability of alternative supports and hindered the practice of psychiatry, including inhibiting peer support systems for psychiatrists. Participants perceived available psychological supports as generally unsuitable for their needs given their specialty. Long-standing under-resourcing, mistrust in management and high levels of burnout exacerbated the psychological burden of the COVID-19 response. CONCLUSIONS: The challenges of leading mental health services were evident in the increased complexity involved in caring for vulnerable patients during the pandemic, contributing to uncertainty, loss of control and moral distress among participants. These dynamics worked synergistically with pre-existing system-level failures, eroding capacity to mount an effective response. The longer-term psychological well-being of consultant psychiatrists - as well as the pandemic preparedness of healthcare systems - is contingent on implementation of policies addressing long-standing under-investment in the services vulnerable populations rely on, not least community mental health services.

Prevalence of Personality Disorders in Adults With Attention Deficit Hyperactivity Disorder (ADHD).

OBJECTIVE: To estimate the prevalence of PDs according to Millon's evolution-based model among adult ADHD outpatients. METHOD: Cross-sectional study of consecutive patients referred to an adult ADHD clinic. PDs were evaluated with Millon Clinical Multiaxial Inventory-III (MCMI-III). RESULTS: One-hundred-eighty-one participants had valid MCMI-III, of whom147 were diagnosed with ADHD. Mean age: 32.97, SD:11.56, females: 74 (50.3%). Among the 147 participants with ADHD, 29 (19.7%) did not meet criteria for any PD, 43 (29.3%) met the criteria for one PD, 34 (23.1%) for two PDs and the rest three or more. Most common PD was Dependent (n = 58) followed by Depressive (n = 45). Inattentive sub-type was associated with dependent PD, while combined type with antisocial, negativistic (passive/aggressive) and sadistic PD. CONCLUSION: Particular personality profiles were more common with different ADHD subtypes. Given the developmental origins of PD, further research may help identify possible links with childhood difficulties.

Holistic assessment of patients with chronic mental disorders who attend a metabolic clinic in Sligo Town catchment area.

BACKGROUND: People with serious mental illness exhibit higher morbidity and mortality rates of chronic diseases than the general population. AIMS: The aim of this study was to establish a dedicated clinic for patients with chronic mental illness to monitor physical health and quality of life in accordance with best practice guidelines. METHODS: Patients were invited to attend the clinic. The following areas were examined: personal and family history of cardiovascular disease, diet, exercise, and smoking. Mental state examination, waist circumference, BP, pulse, ECG and BMI. Laboratory tests including U + E, LFTs, HbA1c, Lipid profile and other tests as appropriate such as serum lithium. AIMS scale, HoNOS and WHOQOL-BREF scales as additional indicators of global health. RESULTS: A total of 80 patients attended during 3.5 years of clinic. Mean age was 54.9 years (SD: 13.81) at first contact and 45% were females. Mean years in the service was 19.66 (SD: 11.54) and mean number of previous hospital admissions was 4.4 (SD: 5.63). Metabolic syndrome was present in 42% at first assessment. A statistically significant improvement was found for the psychological domain of the WHOQOL-BREF and the HoNOs, particularly at third assessment. (ß = 4.64, Wald x2 = 7.38, df:1, p = 0.007, CI:1.3-8.1, ß = - .889, Wald x2 = 4.08, df:1, p = 0.043, CI: - 1.752 to - .026) respectively. CONCLUSION: The results show a high prevalence of physical health conditions in this cohort, some of which represent a new diagnosis. This implicates better allocation of existing resources for screening and early detection, and potential to run joint clinics with primary care.

Prevalence of attention deficit hyperactivity disorder in an adult mental health service in the Republic of Ireland.

OBJECTIVE: Attention Deficit Hyperactivity Disorder (ADHD) is well recognised in childhood. However, recognition that it commonly persists into adulthood is relatively recent. This study is the 2nd phase of a two-phase epidemiological investigation of the prevalence of adult ADHD in outpatients in Ireland. METHOD: In phase-1, 634 participants were screened with Adult ADHD Self-Report Scale (ASRS) and Wender Utah Rating Scale (WURS). Those scoring positive in both scales have been invited to participate in the 2nd phase where the scales Conners' Adult ADHD Diagnostic Interview (CAADID), Mini International Neuropsychiatric Interview (MINI), and Global Assessment of Functioning (GAF) were administered, plus clinical evaluation based in DSM-5. RESULTS: 131 were eligible, 110 participated (84.0%). Using the CAADID (DSM-IV criteria) 71 were diagnosed with ADHD. Projecting to the total sample (N = 634) the prevalence was 13.25%, CI:95%:10.71-16.14. Converting the DSM-IV criteria to DSM-5, 89 had ADHD (prevalence:16.72%, CI: 13.9-19.86). Using clinical evaluation, 86 were diagnosed with ADHD (prevalence:16.09%, CI:13.31-19.18). Only 3 cases were diagnosed before with ADHD. Comorbidity was higher in those with ADHD, with the median number of additional diagnoses 2 (min 0 max 8, IQR 3) Also, they had significantly higher rates of depression and recurred depression. Agreement between DSM-IV and DSM-5 was high (rho = 0.90, p < .0001). CONCLUSIONS: High rates of undiagnosed ADHD were found to be present among AMHS attendees. Clinicians in AMHS need to be knowledgeable and alert to possible ADHD among their caseloads, and offer appropriate intervention. Interventions are urgently required to increase the detection and treatment of adult ADHD.

COVID-19-related occupational stress in staff in an acute paediatric teaching hospital in Ireland.

BACKGROUND: The COVID-19 pandemic has resulted in major strains for healthcare staff. OBJECTIVES: This study aims to assess prevalence of occupational burnout (BO) during COVID-19 in staff working in an acute paediatric hospital setting. PARTICIPANTS: One hundred and thirty-three staff, out of 1900 eligible staff (9.6% response rate), completed an online or paper and pencil survey. METHODS: The Copenhagen Burnout Inventory was used as the main outcome measure. Additional questions examined the impact of COVID-19 and restrictions on work setting and personal health. RESULTS: The majority of respondents reported moderate or higher levels of BO for personal (n=93; 70%) and work domains (n=83; 62%). Rates of patient-related BO were lower (n=18; 13%). Higher rates of BO were found in staff with self-rated COVID-19 adverse effects on physical (n=50, 38%) and mental health (n=88, 66%) (F (2, 13.019)=16.019, p<0.001). The majority of staff had no stress reduction training at any stage in their career, either professional (60%), on the job (62%) or postpandemic (59%) work. Although most (82%) were aware of occupational health supports, few (30%) reported an intention to access these if needed; 65% (n=86) of the respondents seriously considered changing jobs in the last 6-12 months. CONCLUSION: High level of occupational stress among hospital staff during COVID-19, in the absence of stress reduction training is a risk factor for BO. Interventions, acceptable to the employee, are urgently needed given the likelihood of additional work demands as COVID-19 continues.

Comparison of verbal and computerised months backwards tests in a hospitalized older population.

BACKGROUND: Delirium is extremely prevalent, yet underdiagnosed, in older patients and is associated with prolonged length of hospital stay and higher mortality rates. Impaired attention is the cardinal deficit in delirium and is a required feature in diagnostic criteria. The verbal months backwards test (MBT) is the most sensitive bedside test of attention, however, hospital staff occasionally have difficulty with its administration and interpretation. We hypothesise that the MBT on an electronic tablet may be easier and more consistent to use for both experienced and unexperienced medical professionals and, if the diagnostic efficacy was similar, aid delirium diagnosis. AIM: We aim to investigate the correlation of the verbal MBT with a computerised MBT application. METHODS: Participants recruited (age > 65, n = 75) were allocated to different cohorts (Dementia and Delirium (DMDL), Dementia (DM), Delirium (DL), No Neurocognitive Disorder (NNCD)) and were administered both the verbal and electronic versions. RESULTS: Correlation between measurements were: overall Spearman's rho = 0.772 (p < 0.0001); DMDL rho = 0.666 (p < 0.0001); DL rho = 0.778 (p = 0.039); DM rho = 0.378 (p = 0.203); NNCD rho = 0.143 (p = 0.559). DISCUSSION: Overall, and for the delirious subset, statistically significant agreement was present. Poor inter-test correlation existed in the groups without delirium (DM, NNCD). CONCLUSIONS: The MBTc correlates well with the MBTv in patients who are clinically suspected to have delirium but has poor correlation in patients without delirium. Visuospatial cognition and psychomotor deficits in a dementia cohort and mechanical factors (such as tremor, poor fingernail hygiene and visual impairment) in a group with no neurocognitive disorder may limit the utility of the MBTc in a hospitalised older population.

Delirium Item Bank: Utilization to Evaluate and Create Delirium Instruments.

INTRODUCTION: The large number of heterogeneous instruments in active use for identification of delirium prevents direct comparison of studies and the ability to combine results. In a recent systematic review we performed, we recommended four commonly used and well-validated instruments and subsequently harmonized them using advanced psychometric methods to develop an item bank, the Delirium Item Bank (DEL-IB). The goal of the present study was to find optimal cut-points on four existing instruments and to demonstrate use of the DEL-IB to create new instruments. METHODS: We used a secondary analysis and simulation study based on data from three previous studies of hospitalized older adults (age 65+ years) in the USA, Ireland, and Belgium. The combined dataset included 600 participants, contributing 1,623 delirium assessments, and an overall incidence of delirium of about 22%. The measurements included the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition diagnostic criteria for delirium, Confusion Assessment Method (long form and short form), Delirium Observation Screening Scale, Delirium Rating Scale-Revised-98 (total and severity scores), and Memorial Delirium Assessment Scale (MDAS). RESULTS: We identified different cut-points for each existing instrument to optimize sensitivity or specificity, and compared instrument performance at each cut-point to the author-defined cut-point. For instance, the cut-point on the MDAS that maximizes both sensitivity and specificity was at a sum score of 6 yielding 89% sensitivity and 79% specificity. We then created four new example instruments (two short forms and two long forms) and evaluated their performance characteristics. In the first example short form instrument, the cut-point that maximizes sensitivity and specificity was at a sum score of 3 yielding 90% sensitivity, 81% specificity, 30% positive predictive value, and 99% negative predictive value. DISCUSSION/CONCLUSION: We used the DEL-IB to better understand the psychometric performance of widely used delirium identification instruments and scorings, and also demonstrated its use to create new instruments. Ultimately, we hope that the DEL-IB might be used to create optimized delirium identification instruments and to spur the development of a unified approach to identify delirium.

ADHD in Adults: A Systematic Review and Meta-Analysis of Prevalence Studies in Outpatient Psychiatric Clinics.

OBJECTIVE: Systematic review and meta-analysis to estimate the pooled prevalence of ADHD in adult attendees of outpatient mental health clinics and to investigate factors influencing prevalence rates. METHODS: The following were extracted: demographics, design of the study (screening only or two-phase), scales/criteria for diagnosis of ADHD, number of ADHD, and non-ADHD participants. RESULTS: The pooled prevalence of ADHD from screening studies (n = 9) was 26.7%, (95% CI [17.2-37.4]), ADHD = 1727, No ADHD = 3,578. From studies employing a two-stage design (n = 5), prevalence was 14.61%, CI [10.39-19.41], ADHD = 561, No ADHD = 3,578. Age and gender did not have any significant effect on the estimated prevalence. By contrast exclusion of psychotic disorders lowers prevalence. The screening scale used also influence prevalence rates. CONCLUSION: Meta-analysis shows high rates of adult ADHD among psychiatric outpatient clinics. Applying DSM-5 criteria increased prevalence rates. More methodologically robust studies, using two-stage design, need to be conducted to help assist in service planning.

The Effectiveness of Community Mental Health Teams in Relation to Team Cohesion, Authentic Leadership and Size of the Team: A study in the North West of Ireland.

Community Mental Health Teams (CMHTs) are increasingly being considered effective models of recovery focused care, however their effectiveness and factors that may affect it have not fully evaluated. Cross-sectional study in Ireland included 106 members from 8 CMHTs. We examined CMHT's effectiveness and the effects of authentic leadership, team cohesion, team members' experience and team tenure on effectiveness, by administering the Team Effectiveness Scale, Authentic Leadership Questionnaire, and Organizational Cohesion Scale. Data on demographics, discipline, years of experience, tenure in the same team, full or partial membership, and number of team members were collected. Results from multilevel regression analysis indicated significant association (p < 0.05) between effectiveness of CMHTs and factors including team cohesion, authentic leadership, size of the team and full membership. Therefore, to increase CMHTs effectiveness, interventions are needed to those areas: a switch to make leadership styles more authentic, to improve team cohesion, smaller team size and full membership.

COVID-19 related occupational stress in teachers in Ireland.

BACKGROUND: Sporadic school closures and a shift to online teaching have resulted in significant work changes for teachers in Ireland during the COVID-19 pandemic. Such rapid changes are likely to compound other personal or family stressors resultant from the pandemic. METHOD: This study examines occupational stress levels during COVID-19 amongst a national sample of 245 teachers in Ireland using the Copenhagen Burnout Inventory as the main outcome measure. RESULTS: Moderate or high levels of personal burnout was reported by 82% (n = 202) of the sample and 79% (n = 193) reported work burnout. COVID-19 related adverse effects were reported by teachers on physical (43%) and mental health (67%), with deterioration in eating (34%), sleeping (70%) and alcohol use (33%). 100 (42%) participants felt unable to keep safe at work. Low levels of job satisfaction were present (66%), negatively correlating with burnout scores (rs=-0.405, p<.01). 142 (58%) teachers had seriously considered changing jobs in the previous 6-12 months. CONCLUSION: Plans for continued educational access for students must urgently include interventions optimising the occupational environment and resources for teachers. This is necessary to prevent the deleterious impact of personal burnout on teacher wellbeing and to minimise the likelihood of increased staff turnover, early retirement and adverse impacts on teaching quality relating to work burnout.

Harmonization of Four Delirium Instruments: Creating Crosswalks and the Delirium Item-Bank (DEL-IB).

OBJECTIVES: Over 30 instruments are in current, active use for delirium identification. In a recent systematic review, we recommended 4 commonly used and well-validated instruments for clinical and research use. The goal of this study is to harmonize the four instruments on the same metric using modern methods in psychometrics. DESIGN: Secondary data analysis from 3 studies, and a simulation study based on the observed data. SETTING: Hospitalized (non-ICU) adults over 65 years old in the United States, Ireland, and Belgium. PARTICIPANTS: The total sample comprised 600 participants, contributing 1,623 assessments. MEASUREMENTS: Confusion Assessment Method (long-form and short-form), Delirium Observation Screening Scale, Delirium Rating Scale-Revised-98 (DRS-R-98) (total and severity scores), and Memorial Delirium Assessment Scale. RESULTS: Using item response theory, we linked scores across instruments, placing all four instruments and their separate scorings on the same metric (the propensity to delirium). Kappa statistics comparing agreement in delirium identification among the instruments ranged from 0.37 to 0.75, with the highest agreement between the DRS-R-98 total score and MDAS. After linking scores, we created a harmonized item bank, called the Delirium Item Bank (DEL-IB), consisting of 50 items. The DEL-IB allowed us to create six crosswalks, to allow scores to be translated across instruments. CONCLUSIONS: With our results, individual instrument scores can be directly compared to aid in clinical decision-making, and quantitatively combined in meta-analyses.

Association of Wender Utah Rating Scale (WURS)-61 items with clinical psychiatric diagnosis in adulthood.

BACKGROUND: The Wender Utah Rating Scale (WURS) is a widely used retrospective scale in adults presenting for ADHD evaluations which features items relating to childhood symptoms. AIMS: The aim of this study is to establish if certain childhood symptoms (including ADHD) as identified by the WURS-61 are associated with specific mental health disorders in adulthood. METHODS: Case-control study of N=630 attending Adult Mental Health Services (AMHS) and a control group without mental disorders (N=96). RESULTS: The mean age of the participants was 39.81 (SD 12.94) of which 387 (53.3%) were females. There were no significant differences between cases and controls in terms of age (t= 1.829, df 724, p=.068) and gender (x2=1.123, df 1, p=.289). Exploratory factor analysis of WURS-61 reveals 5 factors. Using factor scores and after cross-tabulation, we found that: The presence of childhood impulsivity, emotional lability and distress in addition to inattention/disorganisation were significantly associated with adult ADHD diagnosis (F90). WURS items which suggests childhood conduct problems were associated with a number of adult diagnoses, when present either on its own (psychoactive substance use, or when present in combination with childhood impulsivity, emotional lability and distress (personality disorders). CONCLUSION: There is an association between certain childhood behaviours and risk for later development of personality disorders, and psychoactive substance use. There is overlap of childhood symptoms to those who later diagnosed in adulthood with ADHD, personality disorders, and substance abuse.

Towards understanding the nature and need of delirium guidelines across nations and cultures.

BACKGROUND: Delirium is associated with a variety of adverse healthcare outcomes but is highly predictable, preventable and treatable. For this reason, numerous guidelines have been developed for delirium recognition, prevention and management across different countries and disciplines. Although research is adduced as evidence for these guidelines, a constant finding is the lack of implementation if they exist at all. Implementation is a human behaviour that can be influenced by various factors including culture at a micro- and macro-level. Hofstede's model proposes that national cultures vary along six consistent dimensions. AIM: Using this model, we examined the nature of delirium guidelines across countries in relation to Hofstede's six cultural dimensions. METHODS: Data collected for each country on: the six dimensions of Hofstede's model, number of delirium guidelines approved by a National professional body of each country (through searching databases), the annual old-age dependency ratio for each country. RESULTS: Sixty-four countries had the completed six dimensions of Hofstede's model. Twenty of them (31%) had one or more delirium guidelines. The total number of different delirium guidelines was 45. Countries with formal delirium guidelines have significantly lower power distance among their members, are more individualistic societies, have lower levels of uncertainty avoidance and higher old-age dependency ratio compared to those without delirium guidelines. DISCUSSION/CONCLUSION: The development and implementation of delirium guidelines vary across countries. Specific combinations of cultural dimensions influence the production of delirium guidelines. Understanding these important cultural differences can facilitate more widespread acceptance and implementation of guidelines.