Cognitive stimulation therapy (CST) is a psychosocial treatment for people with dementia. It is an evidence-based treatment which shows improvement in cognition, well-being and quality of life of people living with dementia. CST is recognised as one of the interventions which is cost-effective.

The National Institute of Health and Care Excellence (NICE) guideline recommends that people with mild to moderate dementia should be given opportunities to take part in CST. The CST sessions done in North Norfolk are weekly sessions which span 90 minutes. A group of between 8–10 people attend a 14-week CST treatment course.

The aim of this study is to evaluate the effectiveness of the CST on cognition and social independence of patients with dementia in North Norfolk.

Patients diagnosed with mild to moderate dementia at the memory service were referred for CST sessions. A trained professional assessed the patients to determine their eligibility for CST. The assessment included: assessing motivation to join a group therapy, administration of the short-version of the Addenbrooke Cognitive Examination questionnaire (MINI-ACE) to assess cognitive functions and the administration of Engagement and Independence in Dementia Questionnaire (EIDQ) which measures the social independence of the patients. A higher score on both questionnaires indicates better cognitive function and social independence, respectively.

The CST sessions spanned from February 2023 to May 2023. The patients were re-assessed after the 14-week sessions of CST for their MINI-ACE and EIDQ scores. A qualitative questionnaire was administered for feedback about the sessions.

Data were obtained from patients' clinical record following approval from the research and service evaluation team of the Trust.

Nine patients completed the 14-week CST sessions. The mean age of the patients was 82.9 ± 4.8. 66.7% were male and 33.3% were female. 77.8% were on memory medication and 22.2% were not on memory medication. 44.4%, 33.3%, 11.1% and 11.1% were diagnosed with dementia in Alzheimer's Disease; Mixed Alzheimer's-Vascular Dementia, Lewy Body Dementia and Frontotemporal Dementia, respectively.

The same proportion of patients (44.5%) had both increased and decreased MINI-ACE score after CST while 11% had no changes in MINI-ACE score. Majority (66.7%) had increased EIDQ score after CST, 22.2% had decreased EIDQ score and 11.1% had no changes.

The CST sessions done in North Norfolk showed more positive effect on social independence than cognition in people with dementia.

Catatonia is a neuropsychiatric disorder characterised by psychomotor changes that can affect individuals across the lifespan. Although features of catatonia have been described in adults, the most common clinical symptoms among paediatric patients with catatonia are not well characterised.

The goal of this study was to characterise the symptoms of catatonia demonstrated by paediatric patients, and to explore demographic and diagnostic factors associated with greater catatonia severity.

We conducted a multicentre retrospective cohort study, from 1 January 2018 to 6 January 2023, of patients aged 18 and younger with a clinical diagnosis of catatonia and symptom assessment using the Bush Francis Catatonia Rating Scale (BFCRS).

A total of 143 patients met inclusion criteria. The median age was 15 (interquartile range: 13–16) years and 66 (46.2%) patients were female. Neurodevelopmental disabilities were present in 55 (38.5%) patients. Patients demonstrated a mean of 6.0 ± 2.1 signs of catatonia on the Bush Francis Catatonia Screening Item, with a mean BFCRS score of 15.0 ± 5.9. Among the 23 items of the BFCRS, six were present in >50% of patients (staring, mutism, immobility/stupor, withdrawal, posturing/catalepsy, rigidity), and four were present in <20% of cases (waxy flexibility, mitgehen, gegenhalten, grasp reflex). In an adjusted model, patients with neurodevelopmental disorders demonstrated greater BFCRS severity than those with other diagnoses.

Catatonia was diagnosed in a range of mental health conditions. Further research is needed to define optimal diagnostic criteria for catatonia in paediatric patients, and clarify the clinical course of the disorder.

Coercive or restrictive practices such as compulsory admission, involuntary medication, seclusion and restraint impinge on individual autonomy. International consensus mandates reduction or elimination of restrictive practices in mental healthcare. To achieve this requires knowledge of the extent of these practices.

We determined rates of coercive practices and compared them across countries.

We identified nine country- or region-wide data-sets of rates and durations of restrictive practices in Australia, England, Germany, Ireland, Japan, New Zealand, The Netherlands, the USA and Wales. We compared the data-sets with each other and with mental healthcare indicators in World Health Organization and Organisation for Economic Cooperation and Development reports.

The types and definitions of reported coercive practices varied considerably. Reported rates were highly variable, poorly reported and tracked using a diverse array of measures. However, we were able to combine duration measures to examine numbers of restrictive practices per year per 100 000 population for each country. The rates and durations of seclusion and restraint differed by factors of more than 100 between countries, with Japan showing a particularly high number of restraints.

We recommend a common set of international measures, so that finer comparisons within and between countries can be made, and monitoring of trends to see whether alternatives to restraint are successful. These measurements should include information about the total numbers, durations and rates of coercive measures. We urge the World Health Organization to include these measures in their Mental Health Atlas.

Neuropsychiatry, being at the interface between Neurology and Psychiatry, can fulfil the unmet needs of a cohort of people with complex presentations including psychiatry symptoms associated with neurological diseases and atypical psychiatry presentations with possible underlying aberrant brain processes. However, the development and provision of Neuropsychiatry services have lagged behind in the United Kingdom and some parts of the world, at the cost of ongoing symptom burden and reduced quality of life for vulnerable groups of patients. We set up a tertiary pilot service of Neuropsychiatry in Derbyshire from March 2022 and have been successfully operating both outpatient Neuropsychiatry clinics as well as inreach on to psychiatric wards. We set out to evaluate our service and explore the challenges and outcomes associated with our service development.

A mixed methods evaluation was completed, and the data were extracted from patient records and assessments. Feedback responses were obtained from referring clinicians and service users utilising structured feedback forms for each group. A thematic analysis approach was completed for qualitative responses. More than 140 patients have already been assessed by our Neuropsychiatry service to date, out of which we completed an initial analysis of records of 70 patients referred between March 2022 and February 2023. We further revisited the challenges (lack of resources including clinic space, admin and dedicated electronic medical records (EMR) section).

67% of referrals were from Neurology services with Functional Neurological Disorder (FND) predominating. 74% of patients referred had more than one diagnosis/symptom cluster. Patients reported significant benefits and overall positive experiences from the service. One patient reported, “After 3 years I finally not only have answers to my symptoms but also an explanation as to why. Without this service, I believe I would be still struggling.” Similar positive feedback was obtained from referring clinicians.

Our results demonstrate that a successful tertiary Neuropsychiatry service can be established and run even under challenging circumstances including lack of resources. Our service now has a dedicated clinic running every week, a dedicated EMR section and we are currently in the process of submitting business plans towards sustainable commissioning. Furthermore, our service has been instrumental in reducing the length of inpatient stay, facilitating early discharges, diagnosing and treating reversible conditions that mimicked primary psychiatric issues, as well as improving the quality of life of a vulnerable cohort of people previously diagnosed with complex conditions such as FND and personality disorders.

A nationwide register-based cohort study from Finland including 48 124 incident benzodiazepines and related drug (BZDR) users aged 18–65 years who initiated use in 2006 and were not dispensed BZDRs during 2004–2005. The follow-up was 5 years or until death, whichever occurred first.

To investigate sociodemographic and clinical factors associated with high-dose use of BZDRs (i.e. Z-drugs) among new BZDR users.

The temporal BZDR dose was calculated as a point estimate every 6 months after initiation as defined daily doses (DDDs) per day, based on the PRE2DUP method (an approach based on mathematical modelling of personal drug purchasing behaviours). Sociodemographic and clinical factors associated with dose categories were studied using multinomial logistic regression.

During the 5-year follow-up, very high-dose BZDR use was observed in 7.4% (n = 3557) and medium high-dose use in 25.5% (n = 12 266) of the users (corresponding to ≥30 mg and 10–29 mg in diazepam equivalents, respectively). Very high-dose use was more common among men compared with women (10.9% versus 4.6%). Very high-dose use patterns were especially observed in younger age groups (18- to 25-year-olds). Compared with oxazepam, initiating BZDR use with clonazepam (adjusted odds ratio 3.86, 95% CI 3.24–4.60), diazepam (2.05, 1.78–2.36) or alprazolam (1.76, 1.52–2.03) was associated with increased odds for very high-dose use. Both medium high-dose and very high-dose BZDR use were associated with a lower level of education. In all, 58% of very high-dose use occurred in BZDR users who received their first prescription from general practitioners.

Clinicians should be aware of the dose escalation risk especially when prescribing diazepam, alprazolam or clonazepam for psychiatric indications. If BZDRs are needed, our findings suggest favouring oxazepam.

Investigations of computerised cognitive training (CCT) show heterogeneous results in slowing age-related cognitive decline.

To comprehensively evaluate the effectiveness of serious games-based CCT, integrating control conditions, neurophysiological and blood-based biomarkers, and subjective measures.

In this bi-centric randomised controlled trial with parallel groups, 160 participants (mean age 71.3 years) with cognitive impairment ranging from subjective decline to mild cognitive impairment, were pseudo-randomised to three arms: an intervention group receiving CCT immediately, an active control (watching documentaries) and a waitlist condition, which both started the CCT intervention after the control period. Both active arms entailed a 3-month intervention period comprising a total of 60 at-home sessions (five per week) and weekly on-site group meetings. In the intervention group, this was followed by additional 6 months of CCT, with monthly booster sessions to assess long-term training effects. Behavioural and subjective changes were assessed in 3-month intervals. Biological effects were measured by amyloid blood markers and magnetic resonance imaging obtained before and after training.

Adherence to the training protocol was consistently high across groups and time points (4.87 sessions per week). Domain-specific cognitive scores showed no significant interaction between groups and time points. Significant cognitive and subjective improvements were observed after long-term training. Voxel-based morphometry revealed no significant changes in grey matter volume following CCT, nor did amyloid levels moderate its effectiveness.

Our study demonstrates no benefits of 3 months of CCT on cognitive or biological outcomes. However, positive effects were observed subjectively and after long-term CCT, warranting the inclusion of CCT in multicomponent interventions.

Cannabis-based medicinal products (CBMPs) are increasingly being used to treat post-traumatic stress disorder (PTSD), despite limited evidence of their efficacy. PTSD is often comorbid with major depression, and little is known about whether comorbid depression alters the effectiveness of CBMPs.

To document the prevalence of depression among individuals seeking CBMPs to treat PTSD and to examine whether the effectiveness of CBMPs varies by depression status.

Data were available for 238 people with PTSD seeking CBMP treatment (5.9% of the treatment-seeking sample) and 3-month follow-up data were available for 116 of these. Self-reported PTSD symptoms were assessed at treatment entry and at 3-month follow-up using the PTSD Checklist – Civilian Version (PCL-C). The probable presence of comorbid depression at treatment entry was assessed using the nine-item Patient Health Questionnaire (PHQ-9). Additional data included sociodemographic characteristics and self-reported quality of life.

In total, 77% met screening criteria for depression, which was associated with higher levels of PTSD symptomatology (mean 67.8 v. 48.4, F(1,236) = 118.5, P < 0.001) and poorer general health, quality of life and sleep. PTSD symptomatology reduced substantially 3 months after commencing treatment (mean 58.0 v. 47.0, F(1,112) = 14.5, P < 0.001), with a significant interaction (F(1,112) = 6.2, P < 0.05) indicating greater improvement in those with depression (mean difference 15.3) than in those without (mean difference 7).

Depression is common among individuals seeking CBMPs to treat PTSD and is associated with greater symptom severity and poorer quality of life. Effectiveness of CBMPs for treating PTSD does not appear to be impaired in people with comorbid depression.

Childhood maltreatment is a well-established transdiagnostic risk factor for suicidal ideation; however, previous studies on their association in schizophrenia have produced highly varied results. Moreover, the mechanism linking childhood maltreatment and suicide ideation remains unclear in schizophrenia.

This cross-sectional study aimed to investigate the association between childhood maltreatment and suicide ideation in people with schizophrenia and tested whether insomnia mediated this relationship.

Positive and Negative Syndrome Scale (PANSS), Insomnia Severity Index (ISI), Childhood Trauma Questionnaire – Short Form and Beck Suicidal Ideation Inventory were employed. Logistic regression and mediation analysis were performed.

(a) The prevalence of suicide ideation, insomnia, sexual abuse, emotional neglect, emotional abuse, physical abuse and physical neglect was 10% (n = 61), 18% (n = 111), 11% (n = 68), 25% (n = 153), 6.3% (n = 39), 17% (n = 106) and 39% (n = 239), respectively. In all, 52% (n = 320) reported childhood maltreatment; (b) patients with suicide ideation demonstrated higher insomnia and childhood maltreatment. PANSS depression factor, ISI, lifetime suicidal attempts and emotional abuse were independently associated with suicide ideation; (c) insomnia partially mediated the effects of emotional abuse and emotional neglect on suicide ideation, and insomnia completely mediated the effects of physical neglect and physical abuse on suicide ideation.

Our study calls for formal assessments for childhood maltreatment and insomnia in schizophrenia, which might help identify suicide ideation early. In addition, interventions targeting insomnia might help reduce suicide ideation among people with schizophrenia who experience childhood maltreatment.

People with psychosis experience worse cardiometabolic health than the same-aged general population. In New Zealand, Indigenous Māori experiencing psychosis have greater risk of cardiometabolic and other physical health problems.

To identify a cohort of adults accessing secondary mental health and addiction services in New Zealand, with a previous psychosis diagnosis as of 1 January 2018, and compare odds of hospital admission outcomes, mortality and receipt of cardiometabolic blood screening between Māori and non-Māori in the following 2 years.

Crude and adjusted logistic regression models compared odds of hospital admission outcomes, mortality and receipt of cardiometabolic blood screening (lipids and haemoglobin A1c) between Māori and non-Māori, occurring between 1 January 2018 and 31 December 2019.

A cohort (N = 21 214) of Māori (n = 7274) and non-Māori (n = 13 940) was identified. Māori had higher adjusted risk of mortality (odds ratio 1.26, 95% CI 1.03–1.54), and hospital admission with diabetes (odds ratio 1.64, 95% CI 1.43–1.87), cardiovascular disease (odds ratio 1.54, 95% CI 1.25–1.88) and any physical health condition (odds ratio 1.07, 95% CI 1.00–1.15) than non-Māori. Around a third of people did not receive recommended cardiometabolic blood screening, with no difference between Māori and non-Māori after covariate adjustment.

Māori experiencing psychosis are more likely to die and be admitted to hospital with cardiovascular disease or diabetes than non-Māori. Because of the higher cardiometabolic risk borne by Māori, it is suggested that cardiometabolic screening shortfalls will lead to worsening physical health inequities for Māori experiencing psychosis.

This project aims to evaluate Southampton's Drugs and Alcohol Support Hub Service (DASH) for young people (YP) provided by the charity, No Limits. It aims to produce insights and recommendations for No Limits to improve their service for YPs and positively influence local commissioning and governmental bodies. This project was part of the Wessex Public Health Fellowship for Junior Doctors, which aims to provide experience of working in public health and teach relevant research skills.

An adapted-Donabedian framework was implemented and a review of the literature informed a ‘harm-reduction’ lens for analysis. Mixed methods were used: Quantitative analysis reviewed data from 50 (anonymised) YPs. All data were routinely collected by No Limit's staff as Young People Outcome Records (YPORs) and Client Information Reviews (CIRs), as well as outcome measures collected quarterly for the National Drug Treatment Monitoring Service (NDTMS). Qualitative methods included a thematic analysis of five semi-structured interviews with service providers.

Cannabis and alcohol were the most commonly reported problem drugs for YP (48% and 36%, respectively). In terms of smoking per weekdays, 67% of YPs were using cannabis for the same number of days and 15% had decreased smoking days. For smoking in grams, 26% were smoking the same amount of cannabis compared with 41% smoking less. For alcohol, 41% consumed fewer units and 44% had increased alcohol-free days. Importantly, 63% of YPs reported increased quality of life and 59% increased happiness.

Thematic analysis generated seven themes: harm reduction, mental health, relationships and trust, inter-agency working, YP-led care, individual outcomes and differences between reported outcomes and care provided. Harm reduction for most meant helping the YP build healthier relationships with drugs vis-à-vis enforcing abstinence. Trust was necessary for service providers to support YP reach their goals and YP-led, individualised goals benefitted most. Next, service providers often supported YP with mental health and sometimes this created challenges beyond their professional capabilities, thus emphasising the importance of collaborative inter-agency working. Lastly, providers were frustrated with required NDTMS outcome measures given they failed to capture service benefits.

DASH service's ‘harm reduction’ approach to supporting YP with substance misuse is in-line with evidence-based best practice guidance. However, reported NDTMS outcomes remain driven by an abstinence-informed agenda. This policy is grounded in governmental policies that do not consider the nuance of substance misuse disorders and are reflective of Nancy Reagan's 1980s ‘Just say No’ campaign. To prioritise the health and mental health of young people, government must reframe their policy on substance misuse.

Pharmacological treatment options for patients with dementia owing to Alzheimer's disease are limited to symptomatic therapy. Recently, the US Food and Drug Administration approved the monoclonal antibody lecanemab for the treatment of amyloid-positive patients with mild cognitive impairment (MCI) and early Alzheimer´s dementia. European approval is expected in 2024. Data on the applicability and eligibility for treatment with anti-amyloid monoclonal antibodies outside of a study population are lacking.

This study examined eligibility criteria for lecanemab in a real-world memory clinic population between 1 January 2022 and 31 July 2023.

We conducted a retrospective, single-centre study applying the clinical trial eligibility criteria for lecanemab to out-patients of a specialised psychiatric memory clinic. Eligibility for anti-amyloid treatment was assessed following the phase 3 inclusion and exclusion criteria and the published recommendations for lecanemab.

The study population consisted of 587 out-patients. Two-thirds were diagnosed with Alzheimer's disease (probable or possible Alzheimer's disease dementia in 43.6% of cases, n = 256) or MCI (23%, n = 135), and 33.4% (n = 196) were diagnosed with dementia or neurocognitive disorder owing to another aetiology. Applying all lecanemab eligibility criteria, 11 (4.3%) patients with dementia and two (1.5%) patients with MCI would have been eligible for treatment with this compound, whereas 13 dementia (5.1%) and 14 (10.4%) MCI patients met clinical inclusion criteria, but had no available amyloid status.

Even in a memory clinic with a good infrastructure and sufficient facilities for dementia diagnostics, most patients do not meet the eligibility criteria for treatment with lecanemab.

Psychotic symptoms and elevated fasting blood glucose (FBG) are frequently observed in people with major depressive disorder (MDD), but there is a lack of research into this relationship within this cohort.

This study aimed to preliminarily explore the prevalence of psychotic symptoms and their predictors among patients with MDD and elevated FBG.

This study enrolled 1718 patients with first-episode and drug-naïve (FEDN) MDD. Sociodemographic data and physical and biochemical indicators were collected. Clinical symptoms were assessed with tools such as the Hamilton Rating Scale for Anxiety, Hamilton Rating Scale for Depression (HRSD) and Positive and Negative Syndrome Scale positive subscale.

The odds ratio for psychotic symptoms in those with MDD and elevated FBG (18.7%) was 2.33 times higher than those with MDD without elevated FBG. Presence of psychotic symptoms was significantly correlated with HRSD score, suicide attempts, and total cholesterol and thyroid-stimulating hormone levels. The combination of HRSD score, suicide attempts and thyroid-stimulating hormone levels among patients with MDD and elevated FBG effectively distinguished between individuals with and without psychotic symptoms, achieving an area under the curve of 0.87.

Psychotic symptoms are frequently observed among FEDN MDD patients with elevated FBG, and depressive symptoms, suicide attempts and thyroid-stimulating hormone levels are related to psychotic symptoms in this cohort.

Understanding cause of death in people with depression could inform approaches to reducing premature mortality.

To describe all-cause and cause-specific mortality for people with severe depression in Scotland, by sex, relative to the general population.

We performed a retrospective cohort study, using psychiatric hospital admission data linked to death data, to identify adults (≥18 years old) with severe depression and ascertain cause-specific deaths, during 2000–2019. We estimated relative all-cause and cause-specific mortality for people with severe depression using standardised mortality ratios (SMRs), stratified by sex using the whole Scottish population as the standard.

Of 28 808 people with severe depression, 7903 (27.4%) died during a median follow-up of 8.7 years. All-cause relative mortality was over three times higher than expected (SMR, both sexes combined: 3.26, 95% CI 3.19–3.34). Circulatory disease was the leading cause of death, and, among natural causes of death, excess relative mortality was highest for circulatory diseases (SMR 2.51, 2.40–2.66), respiratory diseases (SMR 3.79, 3.56–4.01) and ‘other’ causes (SMR 4.10, 3.89–4.30). Among circulatory disease subtypes, excess death was highest for cerebrovascular disease. Both males and females with severe depression had higher all-cause and cause-specific mortality than the general population. Suicide had the highest SMR among both males (SMR 12.44, 95% CI 11.33–13.54) and females (22.86, 95% CI 20.35–25.36).

People with severe depression have markedly higher all-cause mortality than the general population in Scotland, with relative mortality varying by cause of death. Effective interventions are needed to reduce premature mortality for people with severe depression.

Long-acting benzodiazepine is the treatment standard for alcohol withdrawal and three regimens are defined – fixed-dose (for outpatient and inpatient settings with untrained staff), symptom-triggered (inpatient setting with trained staff) and front-loading (when a severe withdrawal state is anticipated). Standards in this regard are published by ASAM, NICE and guidelines by Govt. of India. A clinical audit was performed to explore the treatment strategy used in a de-addiction centre in India.

Description of the initial audit cycle.

Setting: Dedicated 10-bed de-addiction ward, attached to a general hospital, with an average of 15 admissions/month of patients with disorders of alcohol use. The centre was established as a special project (‘Vimukthi’) in 2018 and is serviced by a team of three nurses, one doctor and one clinical psychologist, and visited by psychiatrists from the general hospital.

Measurement of performance and comparison with standards: Measurement was done in May 2023 after the authors took charge of the ward. The centre used a fixed-dose regimen of short-acting lorazepam for all patients to manage withdrawal symptoms. There was no documentation of risk profiling. We therefore recommended that tailored treatment based on patient profile be introduced. Risk profiling based on symptoms, signs and history and a symptom-triggered regimen for withdrawal management using nurse-administered CIWA-AR rating could be incorporated into a standard operating procedure (SOP). An SOP was developed and after team discussion and training it was introduced in October 2023.

Re-audit of the implementation phase of SOP over three months (Oct 2023 to Dec 2023) was conducted. Case files were noted to document risk stratification as 34% low risk, 52% intermediate risk and 14% high risk. Symptom-triggered regimen was administered to all patients with added front-loading for all high-risk and some moderate-risk patients. Staff and patients expressed satisfaction with the new protocol. We noticed a significant reduction in the use of oral lorazepam (from 3324 mg for 63 patients during the comparative period of Oct 2022–Dec 2022 to 10 mg for 39 patients), while the use of injectable lorazepam increased by 25% (0.8 mg/patient to 1 mg/patient). Use of oral diazepam increased from nil to 170 mg with one patient receiving injectable diazepam.

Introducing an SOP that incorporated risk profiling, use of long-acting benzodiazepines, symptom-triggered and front-loading regimens and nurse-administered CIWA-Ar monitoring led to the reduced use of short-acting and uptake of long-acting oral benzodiazepines in inpatient alcohol withdrawal management. Decisions based on risk profiling led to an increase in the use of injectable benzodiazepines. We report that conducting this audit cycle led to the improvement of treatment standards in a specialized inpatient de-addiction centre in India.

Both depression and respiratory disease are common today in young populations. However, little is known about the relationship between them.

This study aims to explore the association between depression in childhood to early adulthood and respiratory health outcomes in early adulthood, and the potential underlying mechanisms.

A prospective study was conducted based on the Swedish BAMSE (Barn, Allergi, Miljö, Stockholm, Epidemiologi [Children, Allergy, Milieu, Stockholm, Epidemiology]) birth cohort (n = 4089). We identified clinically diagnosed depression through the dispensation of antidepressants, using national register data confirmed by self-reported diagnosis. At the 24-year follow-up, respiratory health was assessed via questionnaires and clinical evaluation. Metabolic and inflammatory profiles were analysed to explore potential mechanisms.

Among the 2994 participants who provided study data, 403 (13.5%) had depression at any time point from around age 10 to 25 years. Depression was associated with higher risks of any chronic bronchitis symptoms (odds ratio = 1.58, 95% CI 1.21–2.06) and respiratory symptoms (odds ratio = 1.41, 95% CI 1.11–1.80) in early adulthood, independent of body mass index (BMI) and smoking status. Compared to individuals without depression, those with depression had a higher fat mass index (FMI (β = 0.48, 95% CI 0.22–0.74)) and increased blood levels of fibroblast growth factor 21 and Interleukin-6 in early adulthood. These markers together with FMI were found to partly mediate the association between depression and respiratory symptoms (total mediation proportion: 19.8 and 15.4%, respectively, P < 0.01).

Depression in childhood to early adulthood was associated with an increased risk of respiratory ill-health in early adulthood, independently of smoking. Metabolic and inflammatory dysregulations may underlie this link.