Association between Sleep Disturbances During Childhood and Smoking Trajectories During Adulthood: The Longitudinal TEMPO Cohort Study

OBJECTIVE

This study examined the longitudinal association between child sleep disturbances from ages 3 to 16 and smoking in adulthood among subjects from a French cohort study.

METHODS

Data from 2,134 subjects who participated in the French TEMPO cohort from 1991 to 2018 were used. Sleep disturbances observed from ages 3 to 16 years defined our exposure. Tobacco consumption trajectories constitute our outcomes and were ascertained by using Group-Based Trajectory Modeling, a semiparametric probabilistic method that hypothesizes the existence of distinct developmental trajectories over time within one population. The impact of SDs in childhood on adulthood's Tobacco consumption were studied using multinomial logistic regression.

RESULTS

Sleep disturbances at 16 years or under were observed in 26.5% of participants. Five smoking trajectories were defined: "non-smokers", "decrease in consumption at age 20 years", "low-level tobacco use", "smoking followed by cessation at age 30 years" and "high-level tobacco use". No statistically significant association between sleep disturbances and smoking trajectories was found. Compared with nonsmokers, adjusted odds-ratios and 95% Confidence Intervals for each trajectory were respectively: 0.81 [0.52-1.26], 1.28 [0.74-2.22], 1.37 [0.88-2.15] and 1.01 [0.60-1.69].

CONCLUSION

These results suggest that smoking in adulthood may not be related to sleep disturbances in childhood.

Labor market participation and depression during the COVID-19 pandemic among young adults (18 to 30 years): A nationally representative study in France

Objective

To examine the relationship between young adults' labor force participation and depression in the context of the COVID-19 pandemic.

Design setting participants

Data come from the nationally-representative EPICOV cohort study set up in France, and were collected in 2020 and 2021 (3 waves of online or telephone interviews: 02/05/2020-12/06/2020; 26/10/2020-14/12/2020; 24/06/2021-09/08/2021) among 2,217 participants aged 18-30 years. Participants with prior mental health disorder (n = 50) were excluded from the statistical analyses.

Results

Using Generalized Estimating Equation (GEE) models controlled for participants' socio-demographic and health characteristics and weighted to be nationally-representative, we found that compared to young adults who were employed, those who were studying or unemployed were significantly more likely to experience depression assessed using the PHQ-9 (multivariable ORs, respectively: OR: 1.29, 95% CI 1.05-1.60 and OR: 1.50, 1.13-1.99). Stratifying the analyses by age, we observed that unemployment was more strongly associated with depression among participants 25-30 years than among those who were 18-24 years (multivariable ORs, respectively, 1.78, 95% CI 1.17-2.71 and 1.41, 95% CI 0.96-2.09). Being out of the labor force was, to the contrary, more significantly associated with depression among participants 18-24 years (multivariable OR: 1.71, 95% CI 1.04-2.82, vs. 1.00, 95% CI 0.53-1.87 among participants 25-30 years). Stratifying the analyses by sex, we found no significant differences in the relationships between labor market characteristics and depression (compared to participants who were employed, multivariable ORs associated with being a student: men: 1.33, 95% CI 1.01-1.76; women: 1.19, 95% CI 0.85-1.67, multivariable ORs associated with being unemployed: men: 1.60, 95% CI 1.04-2.45; women: 1.47, 95% CI 1.01-2.15).

Conclusions and relevance

Our study shows that in addition to students, young adults who are unemployed also experience elevated levels of depression in the context of the COVID-19 pandemic. These two groups should be the focus of specific attention in terms of prevention and mental health treatment. Supporting employment could also be a propitious way of reducing the burden of the COVID-19 pandemic on the mental health of young adults.

Are we socially equally at risk of smoking during the COVID-19 pandemic? French data from 2009-2021

Background

Since 2020, the COVID-19 pandemic has greatly affected people including a significant increase in mental health difficulties. Cigarette smoking is found to be strongly associated with mental health conditions, which is why the pandemic might have influenced the secular decline in smoking rates observed over recent years. Persons belonging to socioeconomically disadvantaged groups may be particularly affected, both because the pandemic is found to exacerbate existing social inequalities and because this group was more likely to smoke before the pandemic. We examined the prevalence of smoking in a French cohort study, focusing on differences between educational attainment. In addition, we examined the association between educational level and interpersonal changes in tobacco consumption from 2018 to 2021.

Methods

The TEMPO cohort study included 1785 French adults followed between 1991 and 2021. With four assessments of smoking status available before and two after the onset of COVID-19, we estimated the smoking prevalence over time stratified by highest obtained diploma. We studied interpersonal change in smoking status between 2018 and 2021 among 148 smokers, using multinomial logistic regression.

Results

The prevalence of smokers was higher among those with low educational attainment compared with those with higher diploma at all timepoints. The difference between the two groups increased from 2020 to 2021 (4.8% to 9.4%). Smokers with high educational level were more likely to decrease their tobacco consumption from 2018-2021 compared to low educated smokers (aOR=2.72 [1.26;5.89]).

Conclusions

Current findings showed a widening of the socioeconomic gap over time in smoking rates, which emphasizes the vulnerability of persons with low educational attainment to smoking, also during the pandemic.

Key messages

• The existing gap in smoking prevalence between lower and higher diploma groups has increased from 2020 to 2021, which may be a consequence of the COVID-19 pandemic.

• From 2018 to 2021, people with high school as highest qualification were less likely to decrease their tobacco use compared to higher educated people.

Smoking during pregnancy and children’s emotional and behavioural trajectories

Background

The nature of the relationship between maternal tobacco smoking during pregnancy and the occurrence of children's behavioural problems is still a matter of controversy. We tested this association using data collected among a sample of children followed from pregnancy to early adolescence (age 11.5 years), accounting for multiple parents’, children's and family characteristics.

Methods

Data come from 1424 mother-child pairs participating in the EDEN mother-child cohort set up in France. Using repeated measures (3, 5.5, 8 and 11.5 years) of the mother-reported Strengths and Difficulties Questionnaire, we estimated trajectories of children's emotional and behavioural difficulties. Two aspects of maternal smoking were studied: the timing and the level of use (cigarettes/day) during the first trimester of pregnancy. Multinomial regression models controlled for confounding factors including maternal mental health and socioeconomic characteristics using propensity scores with the overlap weighting technique.

Results

Contrary to bivariate analyses, in propensity score-controlled regression models, maternal smoking throughout pregnancy was no longer significantly associated with offspring emotional or behavioural difficulties. Maternal heavy smoking (≥10cigarettes/day) remained significantly associated with intermediate levels of overall emotional and behavioural difficulties (OR 1.64, 95%CI 1.04-2.58) and conduct problems (OR 3.05 95%CI 1.22-7.61), as well as with high levels of conduct problems symptoms (OR 2.82 95%CI 0.88-9.06) - although the latter did not reach statistical significance.

Conclusions

The association between maternal smoking in pregnancy and offspring emotional and behavioural difficulties appears to be largely explained by women's other characteristics. However, maternal heavy smoking appears to be related to offspring behavioural difficulties beyond the role of confounding characteristics.

Key messages

• The association between maternal smoking in pregnancy and offspring emotional and behavioural difficulties seem largely explained by the family's socio-demographic and behavioural characteristics.

• Maternal heavy smoking appears to be related to offspring behavioural difficulties beyond the role of confounding characteristics.

Early childcare type and child development at age 3.5 years, data from the French ELFE cohort

Background

Early childcare has been linked to child development in some countries. The aim of this study is to evaluate the impact of early childcare in the French context, where children can attend different types of childcare facilities prior to age 3 when they enter kindergarten, and development at age 3.5 years.

Methods

10,683 children from the ELFE French national birth cohort were classified into 4 groups depending on their main type of childcare between birth and age three: childminder (n = 5,014), centre-based childcare (n = 2,583), informal childcare (n = 777) and parents only (n = 2,465). Children's development was measured with the short form of the Child Development Inventory (CDI) via parents-reports at age 3.5 years. The CDI score was transformed into a Development Quotient (DQ) taking into account the child's age, and global developmental delay was defined as DQ < 90. Missing data was imputed by Fully Conditional Multiple Imputation with 10 imputations. Multinomial analyses were carried out adjusted by Inverse Probability Weighting based on Propensity Scores calculated using main selection and confounding variables.

Results

Compared to children who were cared for by parents only, children who were cared for by a childminder or in a centre-based childcare had a higher DQ (103.0 and 104.8 respectively) as well as a lower likelihood of global developmental delay (propensity-score weighted OR = 0.84, [95% CI 0.70-1.01] and propensity-score weighted OR = 0.54, [95% CI 0.44-0.66]) respectively.

Conclusions

In the French context, early centre-based childcare attendance is significantly associated with a lower risk of global child delay. Policies should make centre-based childcare more accessible to a broader number of children.

Key messages

• Early childcare type is linked to child development in France.

• Children in centre-based childhood had a lower likelihood of developmental delay compared to those looked after by parents only.

Effectiveness of a stepped-care programme of internet-based psychological interventions for healthcare workers with psychological distress: Study protocol for the RESPOND healthcare workers randomised controlled trial

Background and aims

The coronavirus disease 2019 pandemic has challenged health services worldwide, with a worsening of healthcare workers' mental health within initial pandemic hotspots. In early 2022, the Omicron variant is spreading rapidly around the world. This study explores the effectiveness and cost-effectiveness of a stepped-care programme of scalable, internet-based psychological interventions for distressed health workers on self-reported anxiety and depression symptoms.

Methods

We present the study protocol for a multicentre (two sites), parallel-group (1:1 allocation ratio), analyst-blinded, superiority, randomised controlled trial. Healthcare workers with psychological distress will be allocated either to care as usual only or to care as usual plus a stepped-care programme that includes two scalable psychological interventions developed by the World Health Organization: A guided self-help stress management guide (Doing What Matters in Times of Stress) and a five-session cognitive behavioural intervention (Problem Management Plus). All participants will receive a single-session emotional support intervention, namely psychological first aid. We will include 212 participants. An intention-to-treat analysis using linear mixed models will be conducted to explore the programme's effect on anxiety and depression symptoms, as measured by the Patient Health Questionnaire - Anxiety and Depression Scale summary score at 21 weeks from baseline. Secondary outcomes include post-traumatic stress disorder symptoms, resilience, quality of life, cost impact and cost-effectiveness.

Conclusions

This study is the first randomised trial that combines two World Health Organization psychological interventions tailored for health workers into one stepped-care programme. Results will inform occupational and mental health prevention, treatment, and recovery strategies.

Registration details

ClinicalTrials.gov Identifier: NCT04980326.

Is empowerment in sexual health measurable? A scoping review of definitions and measurement indicators

The concept of empowerment in sexual health is widely used in health promotion. This scoping review aims to identify how it is defined and measured. PubMed, Sage Journals, PsycInfo and the Web of Science are data sources. The inclusion criteria for studies were as follows: (1) an analysis of empowerment in sexual health, (2) quantitative evaluation and (3) publication in a peer-reviewed journal in French or English since January 1996. Data were extracted using a summary table of the definitions and indicators of empowerment in sexual health. Of the 2181 articles found, 29 met the inclusion criteria. Only 4 studies on 29 clearly defined empowerment in sexual health. Five dimensions emerged from the indicators used in the 29 studies in relation to sexual empowerment (social participation, participation in decision making, power to act, sexual health knowledge and gender norms), with two types of indicators: indicators unspecific to sexual health, which can be viewed as empowerment basic skills, and indicators specific to sexual health. Most studies concerned women and focused on individual empowerment, with a lack of measure of collective and structural levels of empowerment. Despite great heterogeneity in the definitions and indicators used, a set of core indicators emerged: participation in decision making, sexual negotiation power and sexual communication skills, knowledge and use of contraceptive methods, and HIV and sexually transmitted infections risk perception. This set could be systematically used in each study based on sexual empowerment concept, completed by supplementary indicators considering the specific context.

The association of substance use with attaining employment among unemployed job seeking adults: Prospective findings from the French CONSTANCES cohort

This study aimed to examine the prospective association between tobacco, alcohol and cannabis use with attaining employment among unemployed job seekers. Data from the French population-based CONSTANCES cohort on 5114 unemployed job seeking adults enrolled from 2012 to 2018 were analyzed. Binary logistic regressions were computed. Odds ratio (OR) and 95%CI of remaining unemployed at one-year of follow-up (versus attaining employment) according to substance use at baseline were obtained. The following independent variables were introduced into separate models: tobacco use (non-smoker, former smoker, light (<10cig/day), moderate (10-19cig/day) and heavy smoker (>19cig/day)), alcohol use according to the Alcohol Use Disorder Identification Test (non-users (0), low (<7), moderate (7-15) and high or very high-risk (>15)) and cannabis use (never used, no use in the previous 12 months, less than once a month, at least once a month but less than once per week, once per week or more). Analyses were adjusted for age, gender and education. At follow-up, 2490 participants (49.7%) were still unemployed. Compared to non-smokers, moderate and heavy smokers were more likely to remain unemployed, with ORs (95%CI) of 1.33 (1.08-1.64) and 1.42 (1.04-1.93), respectively. Compared to low-risk alcohol users, no alcohol users and high or very high-risk alcohol users were more likely to remain unemployed, with ORs (95% CI) of 1.40 (1.03-1.83) and 2.10 (1.53-2.87), respectively. Compared to participants who never used cannabis, participants who use cannabis once a week or more were more likely to remain unemployed, OR (95%CI) of 1.63 (1.33-2.01). Substance use may play an important role in difficulty attaining employment.

Substance Use Among Residents of Homeless Shelters During the COVID-19 Pandemic: Findings From France

Objectives: To record the prevalence and risk factors of substance use amongst homeless persons during the COVID-19 pandemic.

Methods: The ECHO study consisted in two independent cross-sectional waves of data collection in the regions of Paris, Lyon, and Strasbourg during the Spring of 2020 (n = 530) and 2021 (n = 319). Factors associated with substance use were explored using generalised logistic regression models.

Results: The most prevalent substance used was tobacco (38%–43%), followed by alcohol (26%–34%). The use of both substances positively associated with each other, although risk factors varied depending on the substance. The only factors consistently associated with alcohol and tobacco use were being male, exposure to theft/assault and participants’ region of origin. Whilst the rate of tobacco use was relatively stable between Spring 2020 and 2021, alcohol use was more common in 2021.

Conclusion: These findings highlight a high prevalence of substance use amongst homeless persons. People experiencing homelessness face specific challenges in the context of the pandemic, alongside greater vulnerability to illness and low healthcare access, therefore the need to improve prevention and support services for substance abuse within this population is vital.

Mental health problems and needs of frontline healthcare workers during the COVID-19 pandemic in Spain: A qualitative analysis

Background

Healthcare workers (HCWs) from COVID-19 hotspots worldwide have reported poor mental health outcomes since the pandemic's beginning. The virulence of the initial COVID-19 surge in Spain and the urgency for rapid evidence constrained early studies in their capacity to inform mental health programs accurately. Here, we used a qualitative research design to describe relevant mental health problems among frontline HCWs and explore their association with determinants and consequences and their implications for the design and implementation of mental health programs.

Materials and methods

Following the Programme Design, Implementation, Monitoring, and Evaluation (DIME) protocol, we used a two-step qualitative research design to interview frontline HCWs, mental health experts, administrators, and service planners in Spain. We used Free List (FL) interviews to identify problems experienced by frontline HCWs and Key informant (KI) interviews to describe them and explore their determinants and consequences, as well as the strategies considered useful to overcome these problems. We used a thematic analysis approach to analyze the interview outputs and framed our results into a five-level social-ecological model (intrapersonal, interpersonal, organizational, community, and public health).

Results

We recruited 75 FL and 22 KI interviewees, roughly balanced in age and gender. We detected 56 themes during the FL interviews and explored the following themes in the KI interviews: fear of infection, psychological distress, stress, moral distress, and interpersonal conflicts among coworkers. We found that interviewees reported perceived causes and consequences across problems at all levels (intrapersonal to public health). Although several mental health strategies were implemented (especially at an intrapersonal and interpersonal level), most mental health needs remained unmet, especially at the organizational, community, and public policy levels.

Conclusions

In keeping with available quantitative evidence, our findings show that mental health problems are still relevant for frontline HCWs 1 year after the COVID-19 pandemic and that many reported causes of these problems are modifiable. Based on this, we offer specific recommendations to design and implement mental health strategies and recommend using transdiagnostic, low-intensity, scalable psychological interventions contextually adapted and tailored for HCWs.

What differentiates youths who use e-cigarettes from those who smoke traditional tobacco products?

Background

Electronic cigarette (e-cigarette) use has spread among adolescents in many countries, however users’ characteristics are not well known. We aimed to compare characteristics of exclusive e-cigarette users to those of exclusive tobacco users and dual users.

Methods

Data come from a representative sample of 11–19 years old students in Paris, surveyed each year between 2013 and 2017. Current e-cigarette and tobacco use were ascertained in the preceding 30 days. Data were analyzed using random intercept multinomial logistic regression models, exclusive tobacco smokers being the reference group.

Results

Among the 17,435 students included, 2.3% reported exclusive e-cigarette use, 7.9% exclusive tobacco use and 3.2% dual e-cigarette and tobacco use. Compared to exclusive tobacco smokers, e-cigarette users were: a) less likely to use cannabis (adjusted Odds-Ratio (aOR) = 0.15, 95% confidence interval (95% CI) = 0.09–0.25); b) more likely to initiate smoking with an e-cigarette or a hookah rather than traditional cigarettes (aOR = 2.91, 95% CI = 1.74–4.87 and aOR = 15.99, 95% CI = 8.62–29.67, respectively). Additionally, exclusive e-cigarette users are younger with an aOR = 0.29 (95% CI = 0.17–0.49) among 13–15 years and aOR = 0.11 (95% CI = 0.06–0.21) among > 17 years as compared to 11–13 years. The probability of being an exclusive e-cigarette user is lower among participants whose best friend smokes tobacco (aOR = 0.30, 95% CI = 0.20–0.44). Exclusive tobacco users and dual users have similar profiles.

Conclusions

Adolescents who only used e-cigarettes had intermediate levels of risk compared to nonusers and those who used tobacco and/or e-cigarettes, suggesting that e-cigarettes use extends to young people at low-risk of using tobacco products.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-13673-0.

The role of substance use in the risk of not getting employed among young people: Prospective findings from the CONSTANCES cohort

Introduction

It remains unclear whether substance use in youth could be associated with a lower likelihood of accessing employment.

Objectives

To examine prospectively associations between substance use and the risk of not getting employed among young people.

Methods

From the French population-based CONSTANCES cohort, 2,873 students who never worked were included between 2012 and 2018 and followed-up for 2.7 years in average. Generalized estimating equations computed the odds of being unemployed versus employed according to substance use at baseline controlling for sociodemographic factors and depressive state. Tobacco use (smoking status and number of cigarettes), cannabis use frequency, and at-risk alcohol use according to the Alcohol Use Disorder Identification Test (total score >7) were introduced separately in the models.

Results

Tobacco use wasn’t significantly associated with employment. Cannabis use at least weekly, and at-risk alcohol use, were associated with increased odds of being unemployed (OR=1.85, 95%CI(1.29, 2.64)) and OR=1.34, 95%CI(1.04, 1.71)), respectively. Additional analyses on sub-scores of alcohol use suggested that the association was mainly driven by alcohol dependence rather than frequency of use.

Conclusions

Public health campaigns must target youth by advising them of the detrimental roles of regular cannabis use and at-risk alcohol use and their lower chances of getting employed.

Disclosure

No significant relationships.

Effect of Tobacco Cessation Aids on Smoking Cessation and Duration of Abstinence : a French Population-Based Study

Introduction

Although smoking prevalence has been decreasing worldwide, sustained tobacco cessation remains a challenging goal for many smokers. Nicotine replacement therapy (NRT) products remain among the most widespread type of cessation tobacco aids, along with the more recently introduced electronic cigarette, the efficiency of which is still a matter of debate in the public health community.

Objectives

This study aims to contribute to the ongoing discussion about effective ways of encouraging tobacco cessation and in particular evaluating the role of the two aforementioned tobacco cessation aids with regard to lasting smoking abstinence in real-life settings.

Methods

The study is based on the French 2017 Health Barometer, a cross-sectional survey conducted by Santé Publique France. Two distinct outcomes related to tobacco cessation were used: smoking status at 6 months follow-up (yes vs. no) and the duration of smoking abstinence. These two study outcomes were examined respectively among N1 = 2783 and N2 = 1824 participants. All results were weighted based on inclusion probability weights and controlled for propensity scores via overlap weighting (OW), which is appropriate when exposure groups are disparate.

Results

After adjusting on potential confounders, tobacco cessation at 6 months remains significantly associated with e-cigarette use (OR: 1.50 (1.12-1.99)) and e-cigarette use combined with NRT (OR:1.88 (1.15-3.07)). This association did not reach statistical significance in the long-term analysis, nor did the results of NRT use alone in both analyses.

Conclusions

Overall, while electronic cigarette use alone and combined with NRT is associated with an increase in the likelihood of smoking cessation, the long-term effects are probably limited.

Disclosure

No significant relationships.

Symptoms of anxiety/depression during the COVID-19 pandemic and associated lockdown in the community: longitudinal data from the TEMPO cohort in France

Introduction

The COVID-19 pandemic and associated preventive measures have an impact on the persons’ mental health, including increasing risk of symptoms of anxiety and depression in particular. Individual experiencing mental health difficulties in the past could be especially vulnerable during lockdown, however, few studies have tested this empirically considering preexisting mental health difficulties using longitudinal data.

Objectives

The objective of this study is to examine the longitudinal association between preexisting symptoms of anxiety/depression and symptoms of anxiety/depression during lockdown due to the COVID-19 pandemic in a community sample.

Methods

Seven waves of data collection were implemented from March-May 2020. Generalized estimation equations models were used to estimate the association between preexisting symptoms of anxiety/depression and symptoms of anxiety/depression during lockdown among 662 mid-aged individuals from the French TEMPO cohort.

Results

We found an elevated odds ratio of symptoms of anxiety/depression (OR=6.73 95% [CI=4.45–10.17]) among individuals experiencing such symptoms prior lockdown. Furthermore, the odds of symptoms of anxiety/depression during lockdown was elevated among women (OR=2.07 [95% CI=1.32–3.25]), subjects with low household income (OR=2.28 [1.29–4.01]) and persons who reported loneliness (OR=3.94 [2.47–6.28]).

Conclusions

This study demonstrates a strong relationship between preexisting symptoms of anxiety/depression and anxiety/ depression during the COVID-19 outbreak among mid-aged French adults. The findings underline the role of preexisting symptoms of anxiety/depression as a vulnerability factor of anxiety/depression during lockdown. Furthermore, the study shows that loneliness is independently associated with symptoms of anxious/depression, when controlling for prior anxiety/depression symptoms.

Disclosure

No significant relationships.

Non-participation to a longitudinal and interventional survey on the psychological impact of the COVID-19 pandemic among healthcare workers (PSYCOVER) in France

Introduction

We conducted a national longitudinal survey among healthcare workers in the context of the Covid-19 pandemic, (1) to assess mental health and (2) to describe the results of an intervention to improve capacity of resilience. Non-participation is rarely studied despite being an important methodological matter when performing studies on mental health.

Objectives

The study aims to describe and identify the factors associated with non-participation of healthcare workers to the intervention part of a national longitudinal study on the psychological impact of the COVID-19 pandemic.

Methods

Participants were recruited from April to October 2021 via an Internet link widely disseminated. Data collected include participant’ socio-demographic, occupational and working conditions, general health, professional burnout and mental health. The intervention proposed the use of tools for self-management of stress and resilience (PsySTART-Responder® and Anticipate.Plan.Deter™ program). A robust Poisson regression was used to identify factors associated with non-participation.

Results

Among 724 participants, 41% participated to the intervention part. Factors associated to non-participation to the intervention were to work with few or no COVID-19 patients, and low scores in the anxiety scale. Social determinants, occupational characteristics or general health were not associated with non-participation.

Conclusions

Our study provides a better understanding of the participation of healthcare workers that was not frequently studied. The results logically suggest lower participation among those with better mental health and not directly concerned with management of COVID-19 patients. Non-participation to the intervention was not associated with social factors, which is an argument in favour of using such a design/intervention in a socially heterogeneous population.

Disclosure

No significant relationships.

Factors associated with suicidal ideation in the French nationwide EPICOV study

Introduction

The COVID-19 pandemic seems associated with a worsening in mental health issues as well as a widening of pre-existing social and health inequalities. Assessment of its impact on suicidal behavior might therefore be relevant.

Objectives

To assess factors associated with suicidal ideation in the general population, using data from the French nationwide Epicov study

Methods

In the nationally representative Epicov study, data on occurrence of suicidal ideation from November 2019 to November 2020 were available, including timing with respect to France’s lockdown periods. We studied the incidence of suicidal ideation among participants without a prior history of suicidal behavior, after May 11, 2020, when first COVID-19 related lockdown was suspended. Studied factors assessed sociodemographic and health status, including mental health, as well as COVID-19 related information such as symptom. Associations between selected factors and suicidal ideation were assessed in sex-stratified adjusted logistic regression models.

Results

In the Epicov study, prevalence of suicidal ideation was of 2,9%, as opposed to around 4% pre-pandemic. Among 48 702 female and 41 016 male participants, health or financial issues were associated with a higher incidence of suicidal ideation. Interestingly, Covid19-like symptoms were also associated with higher risk of suicidal ideation. While an impaired mental health has been observed in survivors of past pandemics, given the unprecedented context of the current pandemic, this association needs further investigation.

Conclusions

While the COVID-19 pandemic might have lowered suicidal ideation, it’s aftermaths may reverse the trend. To prevent this rise, identification of vulnerable groups is crucial to promote tailored public health strategies.

Disclosure

No significant relationships.

Emotional demands at work and risk of hospital-treated depressive disorder in up to 1.6 million Danish employees: a prospective nationwide register-based cohort study

OBJECTIVE

Previous studies on effects of emotional demands on depression have relied on self-reported exposure data and lacked control for potential confounding by pre-employment risk factors for depression. This study used a register-based design to examine the risk of hospital-treated depressive disorder in relation to occupational levels of emotional demands at work, furthermore addressing the role of risk factors for depression before workforce entry.

METHODS

We analyzed data from two Danish register-based cohorts - Job Exposure Matrix Analyses of Psychosocial Factors and Healthy Ageing in Denmark (JEMPAD, N= 1 665 798) (17) and Danish Work Life Course Cohort (DaWCo, N=939 411), which link assessments of emotional demands by job exposure matrices to records of hospital-treated depressive disorder among employees aged 15-59 years at baseline (average follow up: 9.7 years in JEMPAD, 7.3 years in DaWCo). Potential confounders comprised sociodemographics, job control, work-related violence and physical demands at work. In DaWCo, we followed individuals from their entry into the workforce, and also included data on risk factors for depression before workforce entry (eg, parental income, education, and psychiatric diagnoses).

RESULTS

Employees in occupations with high emotional demands had an increased risk of hospital-treated depressive disorder with confounder-adjusted hazard ratios of 1.32 [95% confidence interval (CI) 1.24‒1.41] and 1.19 (95% CI 1.09‒1.30) in JEMPAD and DaWCO, respectively. This association remained after controlling for risk factors before workforce entry.

CONCLUSIONS

This study suggests that employees in occupations with high emotional demands are at increased risk of hospital-treated depressive disorder. This increased risk was neither attributable to reporting bias nor explained by the included risk factors for depression recorded before workforce entry.

TV, computer, tablet and smartphone use and autism spectrum disorder risk in early childhood: a nationally-representative study

Background

Screen media use in early childhood has largely increased in recent years, even more so during the COVID-19 epidemic, and there is much discussion regarding its influence on neurodevelopment, including Autism Spectrum Disorder (ASD).

Methods

We examined the relationship between use of TV, computer, tablet and smartphone at age 2 years and risk of ASD assessed in telephone-based questionnaires among 12,950 children participating in the nationally representative ELFE (‘Etude Longitudinale Française sur les Enfants’) birth cohort study in France.

Results

In inverse-probability weighted (IPW) multinomial regression analyses, children’s weekly or daily screen media use was associated with an increased likelihood of an intermediate risk of ASD (IPW-controlled OR for weekly use:1.07, 95% CI 1.02—1.12; IPW-controlled OR for daily use:1.05, 95% CI 1.02—1.08) but inversely associated with a high risk (IPW-controlled OR for weekly use: 0.60, 95% CI 0.50—0.73; IPW-controlled OR for daily use: 0.75, 95% CI 0.62—0.91), as ascertained by the M-CHAT. This was confirmed when studying TV as well as computer/tablet exposure separately.

Conclusions

Overall, our nationally-representative study conducted among a large sample of 2-year-old children, indicates a complex relationship between screen exposure and ASD risk.

Children's Diet at 2 Years and Trajectories of Hyperactivity-Inattention Symptoms and Conduct Problems Between 3 and 8 Years: The EDEN Cohort

BACKGROUND

Although the role of diet is increasingly acknowledged in psychiatry, data are still scarce regarding its early impact on the most significant behavioral disorders of childhood (i.e., hyperactivity-inattention and conduct problems).

OBJECTIVES

The objective of this study was to explore the relation between children's dietary patterns at 2 years and developmental trajectories of hyperactivity-inattention and conduct problems between 3 and 8 years.

METHODS

We recruited 1432 mother-child dyads from the French EDEN (etude sur les déterminants pré- et postnatals du développement et de la santé de l'enfant) mother-child cohort to conduct the analyses. Three dietary patterns, labeled guidelines, processed and fast foods, and baby foods, were identified using an FFQ in children aged 2 years in a previous study. The Strengths and Difficulties Questionnaire was used to assess hyperactivity-inattention and conduct problems at 3, 5, and 8 years of age and build related trajectories from 3 to 8 years. The relation between children's dietary patterns at 2 years and the worst developmental trajectories of hyperactivity-inattention and conduct problems were determined with multivariable logistic regressions adjusted for potential socioeconomic, maternal, and child confounders.

RESULTS

The score on the guidelines dietary pattern was negatively associated with the risk of hyperactivity-inattention problems (OR: 0.75; 95% CI: 0.60-0.94), contrary to adherence to the baby foods dietary pattern (OR: 1.41; 95% CI: 1.16-1.71).

CONCLUSIONS

Distinct patterns of children's diet at 2 years were predictive of developmental trajectories of hyperactivity-inattention problems between 3 and 8 years. These results highlight the relevance of conducting further studies to clarify the mechanisms involved.

Impact of the COVID-19 pandemic on vulnerable groups, including homeless persons and migrants, in France: a qualitative study

•

Social inequalities in health increased especially during lockdown.

•

Homeless persons felt neglected as lockdown was designed for those with stable housing.

•

Access to an emergency shelter had positive impacts on homeless persons.

•

Sudden implementation of lockdown reminded prior violent or traumatic circumstances.

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Crisis communication should be adapted to improve adherence to preventive measures.

Social inequalities tended to increase in the context of the pandemic, particularly in relation to the measures taken to manage and reduce the risk of COVID-19. When lockdown measures required the general population “to stay home”, what were homeless people expected to do? The ECHO study is a cross-sectional, descriptive study with a convergent mixed-method design. Data were collected across shelters in France both during and immediately following the lockdown (April – June 2020). This article presents the study’s qualitative findings, with a focus on understanding both the experiences and perceptions among these populations of the measures taken to limit the COVID-19 infection. A total of 26 semi-directed individual interviews were conducted across seven shelters in both Lyon (42%) and Paris (58%). Data were analysed using thematic content analysis with partial blinded coding. Four key themes were identified: 1- Reactions to the introduction of lockdown: a sudden implementation reminiscent of prior violent or traumatic circumstances amongst participants, 2- Accommodation during lockdown: participants’ conflicting visions of the shelter, 3- Influence of the media and public communication: an abundant flow of information impacting participant’s wellbeing and representations on the pandemic, and 4- The individual impact of lockdown: perceived health and limitations to daily life activities. The most vulnerable populations have borne the heaviest burden during the pandemic. It is therefore crucial that we improve both the availability of information, and the health literacy of, all groups within the national population.

Longitudinal survey on the Psychological Impact of the COVID-19 Pandemic in Healthcare Workers (PsyCOVer) in France: study protocol

INTRODUCTION

In the pandemic, healthcare professionals face even higher levels of stress. It is therefore a priority to estimate the impact of the pandemic on mental health and to propose targeted strategies to improve resilience. The aims of the study were to (1) assess the mental health of healthcare professionals working with patients with COVID-19 and identify social determinants that may increase the risk of negative outcomes; and (2) test the effectiveness of an intervention to improve the resilience of healthcare professionals in France.

METHODS AND ANALYSIS

To evaluate the first objective, a national longitudinal study will be carried out among healthcare professionals working with patients with COVID-19. Participants will be recruited via an internet link that will be widely disseminated on social media, mailing lists, medical boards and French medical journals. Primary outcomes are mental health distress/symptoms and resilience. Secondary outcomes are burnout, social and occupational supports and substance use. To meet the second objective, an interventional study will be conducted. The main outcome is the effectiveness of the PsySTART-Responder and the Anticipate.Plan.Deter program. Qualitative analyses will be conducted to understand the strategies used to cope with the pandemic.

ETHICS AND DISSEMINATION

The study protocol was approved by the Sorbonne Université Ethical Committee (No 2020-CER-2020-27) and was declared to French Commission on Information Technology and Liberties, CNIL (N°2222413, 20-05-2021). The results of this study will provide a better understanding of mental health and social inequalities in mental health among healthcare professionals working in the pandemic; data about the effectiveness of the PsySTART-Responder and the Anticipate.Plan.Deter interventional program in France.

Characteristics of persons who died by suicide in prison in France: 2017-2018

BACKGROUND

In northern countries, suicide rates among prisoners are at least three times higher for men and nine times higher for women than in the general population. The objective of this study is to describe the sociodemographic, penal, health characteristics and circumstances of suicide of French prisoners who died by suicide.

METHODS

This study is an intermediate analysis of the French epidemiological surveillance program of suicides in prison. All suicides in prison in 2017-2018 in France were included in the study. Archival sociodemographic and penal data and specific data on the circumstances of the suicidal act were provided by the National Prison Service. Health data was provided by physicians working in prison using a standardized questionnaire.

RESULTS

In 2017-2018, 235 prisoners died by suicide. The suicide rate was 16.8/10 000 person-years. Among suicide cases, 94.9% were male, 27.2% were under 30, 25.1% were aged 30 to 39, 27.7% were aged 40 to 49 and 20.0% were 50 or older. At the time of suicide, 48.5% were on custodial remand. Incarceration is associated with a threefold increase in the frequency of anxio-depressive disorders (24.6% in prison versus 8.2% before prison). The week before the suicidal act, 60% of prisoners visited the health unit and a significant event was detected for 61% of all cases. Suicide was less than 1 week after prison entry for 11.9% of prisoners, corresponding to a suicide rate 6.4 (CI_95% [4.3 - 9.5]) times higher than for the remaining time in prison, and was more than 1 year after entry for 33.7% of them.

CONCLUSIONS

The high frequency of events the week before suicide in our study suggests that events in prison could play a role in the occurrence of suicides. Comparative studies are needed to further explore the time association between events and suicide in prison. As most of prisoners who died by suicide visited the health unit the week before suicide, the identification of triggering factors could help psychiatrists and other health professionals to assess the short-term risk of suicide and to implement preventive measures.

Emotional and attention-deficit/hyperactivity disorder symptoms of preterm vs. full-term children during COVID-19 pandemic restrictions

BACKGROUND

Preterm children are at higher risk of developing mental health problems than full-term children. Deterioration of children's mental health was observed during COVID-19 pandemic restrictive measures. Our study compared emotional and attention-deficit/hyperactivity disorder (ADHD) symptoms during school closure between preterm and full-term children.

METHODS

Data from two French birth cohorts-ELFE and EPIPAGE-2-were used. In 2011, infants born ≥22 weeks' gestation were recruited. Parents completed the Strengths and Difficulties Questionnaire when the children were 9 years old and experiencing school closure. Multivariate multinomial logistic regression models were used.

RESULTS

Subjects included 4164 full-term and 1119 preterm children. In univariate analyses, compared to full-term children: extremely and very preterm children more frequently had abnormal and borderline ADHD scores (odds ratio [OR] 1.86, 95% confidence interval [CI] 1.50-2.30, OR 1.42, 95% CI 1.08-1.85, respectively) and abnormal emotional scores (OR 1.86, 95% CI 1.43-2.40); moderate to late preterm children more often had abnormal ADHD scores (OR 1.33, 95% CI 1.01-1.78). The associations did not remain when previous symptoms at 5 years old were considered.

CONCLUSIONS

School closure during lockdown did not appear to increase the risk of mental health problems in preterm compared to full-term children.

IMPACT STATEMENT

Preterm children are at higher risk of developing mental health problems than full-term children. Deterioration in children's mental health was observed during COVID-19 pandemic restrictions. However, whether preterm children were a particularly vulnerable subgroup during school closure is unclear. In univariate analyses, extremely and very preterm children more often had abnormal and borderline ADHD symptoms and abnormal emotional symptom scores than full-term children. The associations did not remain significantly associated when previous symptoms were considered. Preterm compared to full-term children more often suffer from ADHD and emotional symptoms, but school closure during lockdown did not appear to increase this risk.

Adolescent cannabis experimentation and unemployment in young to mid-adulthood: Results from the French TEMPO Cohort study

BACKGROUND

France accounts for one of the highest levels of recreational cannabis use, with almost 40% of youth aged 17 reporting having experimented with cannabis. We investigated the impact of early cannabis experimentation (defined as first-time use ≤ 16 years) on future probability of unemployment in young to mid-adulthood using a longitudinal, community sample over the span of 9 years.

METHODS

Data were obtained from the French TEMPO Cohort study, set up in 2009 among young adults aged 22-25 years old. Participants who reported information on age of cannabis experimentation and employment status in at least one study wave (2009, 2011, 2015 and 2018) were included in the statistical analyses (N = 1487, 61.2% female).

RESULTS

In A-IPW-adjusted analyses, early cannabis experimenters (≤ 16 years) had 1.71 (95% CI: 1.46-2.02) times higher odds of experiencing unemployment compared to late cannabis experimenters (> 16 years) and 2.40 (95% CI: 2.00 - 2.88) times higher odds of experiencing unemployment compared to non-experimenters. Late cannabis experimenters experienced 1.39 (95% CI: 1.17-1.68) times higher odds of being unemployed compared to non-experimenters, and early cannabis experimenters experienced 3.84 (95%CI: 2.73-5.42) times higher odds of experiencing long-term unemployment (defined as unemployed at least twice) compared to non-experimenters.

CONCLUSIONS

Participants who ever used cannabis, especially at or before the age of 16, had higher odds of experiencing unemployment, even when accounting for many psychological, academic and family characteristics which preceded cannabis initiation.

Risk and protective factors related to children's symptoms of emotional difficulties and hyperactivity/inattention during the COVID-19-related lockdown in France: results from a community sample

OBJECTIVE

The COVID-19 epidemic has spread worldwide since December 2019. To contain it, preventive measures including social distancing, economic shutdown, and school closures were introduced, carrying the risk of mental health burden in adults and children. Although the knowledge base regarding children's response to trauma and adverse events in general has broadened, descriptions of their mental health during epidemics remain scarce. In particular, the role of family socioeconomic characteristics and parental mental health are poorly understood.

METHODS

We assessed the correlates of children's emotional difficulties and symptoms of hyperactivity/inattention during the COVID-19 lockdown in a French community-based sample. Data came from 432 community-based parents (27-46 years, TEMPO cohort) and their children (mean age 6.8 ± 4.1) interviewed online. Children's symptoms of emotional difficulties and hyperactivity/inattention were assessed using the parent-reported Strengths and Difficulties Questionnaire during the 5th week of home confinement. Family socioeconomic characteristics and parental mental health and substance use were assessed weekly during the first 5 weeks of home confinement. Data were analyzed using logistic regression models.

RESULTS

7.1% of children presented symptoms of emotional difficulties and 24.7% symptoms of hyperactivity/inattention. Family financial difficulties and parental symptoms of anxiety and depression, as well as children's sleeping difficulties and screen time, were associated with the presence of psychological difficulties.

CONCLUSION

Children's emotional and behavioural difficulties are associated with parental mental health and socioeconomic difficulties. In the unprecedented situation of the COVID-19 epidemic, parents and professionals involved in caring for children should pay special attention to their mental health needs.

Impact of Longitudinal Social Support and Loneliness Trajectories on Mental Health during the COVID-19 Pandemic in France

(1) Background: Little is known about how the COVID-19 pandemic has impacted social support and loneliness over time and how this may predict subsequent mental health problems. This study aims to determine longitudinal trajectories of social support and loneliness in the French general population during the first year of the COVID-19 pandemic and study whether variations in these trajectories are associated with symptoms of depression and anxiety; (2) Methods: Analyses were based on data from 681 French participants in the international COVID-19 Mental Health Study (COMET) study, collected at four periods of time between May 2020 and April 2021. Group-based trajectory modelling (GBTM) was used to determine social support and loneliness trajectories. Associations between the identified trajectories and symptoms of depression and anxiety, measured with the Patient Health Questionnaire (PHQ-9) and Generalized Anxiety Disorder scale (GAD-7), were tested through multivariate linear regression models; (3) Results: Social support trajectories revealed four stable groups: 'poor' (17.0%), 'moderate' (42.4%), 'strong' (35.4%) and 'very strong' (5.1%). Loneliness trajectories also identified four groups: 'low stable' (17.8%), 'low rising' (40.2%), 'moderate stable' (37.6%) and 'high rising' (5.0%). Elevated symptoms of depression were associated with poor social support as well as all identified loneliness trajectories, while high levels of anxiety were associated with moderate stable and high rising loneliness trajectories; (4) Conclusions: High and increasing levels of loneliness are associated with increased symptoms of depression and anxiety during the pandemic. Interventions to address loneliness are essential to prevent common mental health problems during the pandemic and afterwards.

Children's mental and behavioral health, schooling, and socioeconomic characteristics during school closure in France due to COVID-19: the SAPRIS project

COVID-19 limitation strategies have led to widespread school closures around the world. The present study reports children's mental health and associated factors during the COVID-19 school closure in France in the spring of 2020. We conducted a cross-sectional analysis using data from the SAPRIS project set up during the COVID-19 pandemic in France. Using multinomial logistic regression models, we estimated associations between children's mental health, children's health behaviors, schooling, and socioeconomic characteristics of the children's families. The sample consisted of 5702 children aged 8-9 years, including 50.2% girls. In multivariate logistic regression models, children's sleeping difficulties were associated with children's abnormal symptoms of both hyperactivity-inattention (adjusted Odds Ratio (aOR) 2.05; 95% Confidence Interval 1.70-2.47) and emotional symptoms (aOR 5.34; 95% CI 4.16-6.86). Factors specifically associated with abnormal hyperactivity/inattention were: male sex (aOR 2.29; 95% CI 1.90-2.76), access to specialized care prior to the pandemic and its suspension during school closure (aOR 1.51; 95% CI 1.21-1.88), abnormal emotional symptoms (aOR 4.06; 95% CI 3.11-5.29), being unschooled or schooled with assistance before lockdown (aOR 2.13; 95% CI 1.43-3.17), and tutoring with difficulties or absence of a tutor (aOR 3.25; 95% CI 2.64-3.99; aOR 2.47; 95% CI 1.48-4.11, respectively). Factors associated with children's emotional symptoms were the following: being born pre-term (aOR 1.34; 95% CI 1.03-1.73), COVID-19 cases among household members (aOR 1.72; 95% CI 1.08-2.73), abnormal symptoms of hyperactivity/inattention (aOR 4.18; 95% CI 3.27-5.34) and modest income (aOR 1.45; 95% CI 1.07-1.96; aOR 1.36; 95% CI 1.01-1.84). Multiple characteristics were associated with elevated levels of symptoms of hyperactivity-inattention and emotional symptoms in children during the period of school closure due to COVID-19. Further studies are needed to help policymakers to balance the pros and cons of closing schools, taking into consideration the educational and psychological consequences for children.

Cohort description: Measures of early-life behaviour and later psychopathology in the LifeCycle Project - EU Child Cohort Network

BACKGROUND

The EU LifeCycle Project was launched in 2017 to combine, harmonise, and analyse data from more than 250,000 participants across Europe and Australia, involving cohorts participating in the EU-funded LifeCycle Project. The purpose of this cohort description is to provide a detailed overview over the major measures within mental health domains that are available in 17 European and Australian cohorts participating in the LifeCycle Project.

METHODS

Data on cognitive, behavioural and psychological development has been collected on participants from birth until adulthood through questionnaire and medical data. We developed an inventory of the available data by mapping individual instruments, domain types, and age groups, providing the basis for statistical harmonization across mental health measures.

RESULTS

The mental health data in LifeCycle contain longitudinal and cross-sectional data for ages 0-18+ years, covering domains across a wide range of behavioural and psychopathology indicators and outcomes (including executive function, depression, ADHD and cognition). These data span a unique combination of qualitative data collected through behavioural/cognitive/mental health questionnaires and examination, as well as data from biological samples and indices in the form of brain imaging (MRI, foetal ultrasound) and DNA methylation data. Harmonized variables on a subset of mental health domains have been developed, providing statistical equivalence of measures required for longitudinal meta-analyses across instruments and cohorts.

CONCLUSION

Mental health data harmonized through the LifeCycle project can be used to study life course trajectories and exposure-outcome models that examine early life risk factors for mental illness and develop predictive markers for later-life disease.

Invited Commentary: Is the Long Shadow of Childhood Disadvantage on Lifelong Health Getting Worse Over Time?

Social inequalities in health and their early-life origins have been extensively documented. Although the complex direct and intermediate mechanisms linking early-life disadvantage to later health are not yet fully understood, new findings on biological markers distinctly related with early-life experiences suggest a causal relationship. In this issue, Fuller-Rowell et al. (Am J Epidemiol. 2021:190(11):2284-2293) step back to examine the role of childhood disadvantage in the United States in different periods, observing that the relationship with later health seems to have strengthened over time. The main explanation the authors bring up has to do with increased income segregation and changes in labor market composition that limit opportunities for persons with low educational attainment. In other words, while the rich get richer, the poor get poorer, the middle class shrinks, and there are fewer interactions across different socioeconomic groups and the social ladder is blocked. Other evidence suggests that investments in children, through early education and academic support programs, could help reduce the consequences of childhood disadvantage on long-term health.

Increased risk of job strain and mental health among first and second-generation migrants in France

Background

Immigrants often have more difficult working conditions than natives in Europe, which could particularly expose them to psychosocial work factors and participate to a deteriorated mental health. This study aims to 1) describe the prevalence of job strain across origin and its determinants in France 2) verify whether the association between job strain and mental health hold across all population groups.

Methods

We used the national Conditions de travail-Risques Psychosociaux 2016 survey (N = 24, 640) which is representative of the active population in France. Mental health was measured by Generalized Anxiety Disorder (GAD-Mini). Among employed persons, we described the prevalence of job strain according to migratory status and by sex. Then we modelled the probability to be exposed to job strain with Poisson regressions. Finally we modelled the probability to have a Generalised Anxiety Disorder in each group of population with Poisson regressions.

Results

The prevalence of job strain was 44% among first-generation immigrants from Africa and 50% among second-generation immigrants (not EU, not Africa) vs 32% in the non-immigrant population, p &lt; 0.0001)., with differentiated gender patterns. After adjustment on sociodemographic and occupational characteristics, women were more likely to be exposed to jobstrain [aIRR=1,30 [1,24;1,37]] as well as second-generation immigrants from Africa (aIRR=1,10 [1,00;1,21]). Job strain was associated with Generalised Anxiety Disorder in all groups of population.

Conclusions

Immigrants are more exposed to job strain in France and more research is needed to understand this increased risk. Additionally, job strain was associated with anxiety in all immigrant groups and could contribute to immigrants' deteriorated mental health.

Key messages

First and second generation immigrants are more exposed to job strain than non-immigrants in France. This increased risk is only partially explained by the type of jobs they hold.

Symptoms of emotional difficulties and hyperactivity/inattention among children during the COVID-19 epidemic and associated lockdown: data from the SAPRIS project

Background

COVID-19 limitation strategies led to widespread school closures around the world. The present study aims to provide a description of children's mental health and associated factors during the COVID-19 school closure in France.

Methods

We conducted a cross-sectional analysis in the SAPRIS study during the COVID-19 pandemic in France, relying on 2 ongoing national birth cohorts, ELFE and EPIPAGE 2. Using weighted multinomial logistic regression models, we estimated associations between children's mental health (i.e., hyperactivity/inattention and emotional symptoms; assessed by the Strengths and Difficulties Questionnaire), children's health behaviors, schooling, as well as sociodemographic and socioeconomic characteristics of children family.

Results

The sample consisted of 5702 children aged 8 - 9 years and 49.3% girls. Sleep disturbance and parents' dominant socio-professional category were associated with both hyperactivity-inattention (adjusted Odds Ratio (aOR)=2.10 95%Confidence Interval [1.85-2.38]; aOR=0.45 [0.33-0.61] respectively) and emotional symptoms and (aOR=6.33 [5.26-7.63]; aOR=0.62 [0.39-0.98] respectively). Specifically associated with hyperactivity/inattention were: male sex (aOR=2.51 [2.24-2.82]), presence of regular care and its pursuit during school closure (aOR=1.69 [1.33-2.15]), emotional symptoms (aOR=2.74 [2.23-3.37]), school situation (aOR=2.19 [1.69-2.82]), presence of tutoring and difficulties with it (aOR=2.56 [2.13-3.08]), type of housing (aOR=0.79 [0.70-0.89]). Factors associated with emotional symptoms were: presence of covid cases in the household (aOR=2.33 [1.92-2.82]), hyperactivity/inattention (aOR=2.94 [2.45-3.52]) and financial difficulties (aOR=1.71 [1.39-2.11]).

Conclusions

Policy makers need to balance pros and cons of closing schools, taking into consideration educational and psychological consequences for children and the various factors associated with mental health.

Depression during the COVID-19 pandemic amongst residents of homeless shelters in France

Background

Accumulating evidence suggests that the COVID-19 pandemic has negatively affected global mental health and well-being. However, the impact amongst homeless persons has not been fully evaluated. The ECHO study reports factors associated with depression amongst the homeless population living in shelters in France during the spring of 2020.

Methods

Interview data were collected from 527 participants living in temporary and/or emergency accommodation following France's first lockdown (02/05/20 – 07/06/20), in the metropolitan regions of Paris (74%), Lyon (19%) and Strasbourg (7%). Interviews were conducted in French, English, or with interpreters (33% of participants, ∼20 languages). Presence of depression was ascertained using the Patient Health Questionnaire (PHQ-9).

Results

Amongst ECHO study participants, 30% had symptoms of moderate to severe depression (PHQ-9 ≥ 10). Multivariate analysis revealed depression to be associated with being female (aOR: 2.15; CI: 1.26–3.69), single (aOR: 1.60; CI: 1.01–2.52), chronically ill (aOR: 2.32; CI: 1.43: 3.78), facing food insecurity (aOR: 2.12; CI: 1.40–3.22) and participants’ region of origin. Persons born African and Eastern Mediterranean regions showed higher levels of depression (30–33% of participants) than those migrating from other European countries (14%). Reduced rates of depression were observed amongst participants aged 30–49 (aOR: 0.60; CI: 0.38–0.95) and over 50 (aOR: 0.28; CI: 0.13–0.64), compared to 18–29-year-olds.

Limitations

These data are cross-sectional, only providing information on a given moment in time.

Conclusions

Our results indicate high levels of depression amongst homeless persons during the COVID-19 pandemic. Predicted future instability and economic repercussions could particularly impact the mental health of this vulnerable group.

Prevalence of psychosocial risks among immigrants in France and associations with mental health: findings from the national French Working Conditions Survey

PURPOSE

Few studies examined psychosocial risks among immigrants and explored their association with mental health. Our study aims to 1) describe the prevalence of job strain and iso-strain according to migratory status and model the probability of exposure, 2) verify whether the association between job strain, iso strain and anxiety holds for all immigrant groups.

METHODS

We used the nationally-representative cross-sectional French Working Conditions Survey (N = 24 640). Anxiety was measured with the GAD-Mini. We described the prevalence of job strain and iso-strain according to migratory status and sex. We used multivariate Poisson regressions to model the probability to be exposed to job strain and iso-strain. We described the prevalence of anxiety according to migratory status and sex. In each immigrant group, we modelled the probability of anxiety according to sociodemographic characteristics, lifetime suicidal attempt and job strain/iso-train.

RESULTS

Overall, there were important variations in psychosocial risks prevalence, with immigrants groups more exposed than majority population. After adjustment, being first-generation immigrant from Africa remained associated with job strain (aIRR = 1.21 [0.99; 1.47]), and being second-generation immigrant from Africa with iso-strain (aIRR = 1.33 [1.05; 1.69]). The prevalence of anxiety was the highest in second-generation immigrants from Africa (12%). In this population, job strain and iso-strain were associated with anxiety (aIRR job strain = 2.70[1.22;6.01]; aIRR iso-strain 4.26 [2.29;7.92]).

CONCLUSION

Our study provides first estimates of psychosocial risks among first and second-generation immigrants in France and shows that immigrants are particularly exposed to job strain and iso-strain, which could contribute significantly to their mental health.

Were immigrants on the frontline during the lockdown? Evidence from France

In France, immigrants' excess of mortality was higher than natives' during the Spring 2020 lockdown. Were immigrants in frontline jobs and more exposed to Covid-19? Based on a nationally representative survey, we model the probability to work in a frontline job according to migratory status, taking sociodemographic and occupational characteristics into account. Compared to natives (Metropolitan France), being an African immigrant was associated to higher probability to work in a frontline job [adjusted odds ratio (aOR) = 1.82 (1.23-2.71)], as well as being born in French Overseas Departments [aOR = 1.64 (1.23-2.18)], reflecting racial division of work and higher Sars-Cov-2 exposure of immigrant and minority populations.

Symptoms of anxiety/depression during the COVID-19 pandemic and associated lockdown in the community: longitudinal data from the TEMPO cohort in France

BACKGROUND

To cope with the COVID-19 pandemic, social distancing restrictions where implemented in France, which could have led to social isolation. This is expected to have affected the mental health situation, including increasing risk of symptoms of anxiety and depression in the general population. Persons with prior mental health difficulties could be an especially vulnerable group, however, few studies have tested this empirically considering preexisting mental health difficulties. We examine the association between preexisting symptoms of anxiety/depression and anxiety/depression during lockdown due to the COVID-19 pandemic in a longitudinal community sample.

METHODS

A longitudinal follow-up during lockdown (data collection March-June 2020) was implemented among participants of the TEMPO cohort. Prior knowledge of anxiety/depression was included from prior waves of data collection. Generalized estimation equations models were used to estimate the association between preexisting symptoms of anxiety/depression and symptoms of anxiety/depression during lockdown among 662 mid-aged individuals.

RESULTS

Individuals with symptoms of anxiety/depression measured prior to lockdown had 6.73 higher odds [95% CI = 4.45-10.17] of symptoms of anxiety/depression during lockdown. Additionally, the likelihood of symptoms of anxiety/depression during lockdown was elevated among women (OR = 2.07 [95% CI = 1.32-3.25]), subjects with low household income (OR = 2.28 [1.29-4.01]) and persons who reported being lonely (OR = 3.94 [95% CI = 2.47-6.28]).

CONCLUSIONS

Our study underlines the role of preexisting symptoms of anxiety/depression as a vulnerability factor of anxiety/depression during lockdown. Interventions focusing on individuals with mental health difficulties as well as people feeling lonely should be considered, to reduce the psychological impact of the COVID-19 pandemic.

Impact of COVID-19-like symptoms on occurrence of anxiety/depression during lockdown among the French general population

Background

The outbreak of the COVID-19 epidemic lead to high levels of morbidity and mortality around the globe. Consequences of this outbreak and possible associated infection are an increase in mental health disorders and an increased likelihood of internalizing problems, particularly depression. However, to date few studies have tested this hypothesis while taking into account individuals’ preexisting mental health difficulties.

Methods

We used longitudinal data collected among 729 persons in the context of the French TEMPO cohort between March and June 2020 (7 waves of data collection). COVID-19-like symptoms as well as anxiety/depression (assessed by the Adult Self Report), were reported at each wave of data collection. To study the relationship between COVID-19-like symptoms and anxiety/depression, we used generalized estimation equation (GEE) models controlled for socio-demographic and health-related characteristics, including anxiety/depression prior to 2020.

Results

Overall, 27.2% of study participants reported anxiety/depression during lockdown. 17.1% of participants reported COVID-19-like symptoms during the course of follow-up, 7.3% after the beginning of lockdown, with an average number of 2.7 symptoms, and 3.6% reported respiratory distress. In multivariate analyses, nearly all the considered indicators of COVID-19-like symptoms were associated with higher odds of symptoms of anxiety/depression (symptoms Yes/No: OR = 1.66, 95% CI = 1.08–2.55; symptoms after the beginning of lockdown: OR = 1.91, 95% CI = 1.03–3.52; number of symptoms: OR for each additional symptom = 1.19, 95% CI = 1.02–1.39. This relationship exists after taking into account prior symptoms of anxiety/depression, which are associated with a 5-fold increased likelihood of psychological distress. And this impact is stronger among men than women.

Conclusions

Our study shows higher risk of anxiety/depression among persons who experienced COVID-19-like symptoms, even after accounting for prior mental health difficulties. COVID-19 infection could have both a direct and indirect impact on the occurrence of psychological difficulties, and this association should be studied in greater detail.

Deterioration of mental health and insufficient Covid-19 information among disadvantaged immigrants in the greater Paris area

OBJECTIVES

The aim of this study is to provide information on changes in mental health among disadvantaged immigrants from Sub-Saharan Africa in the Greater Paris area and their level of information about Covid-19.

METHODS

Prior to the Covid-19 epidemic, the Makasi community-based cohort followed 850 immigrants from sub-Saharan Africa in the Greater Paris area. Between the 1st of April and the 7th of June 2020, all participants scheduled for a follow-up survey were systematically included into an additional COVID-19-related wave of data collection (N = 100). We compared participants' type of housing, level of food insecurity, work and mental health (PHQ9) before and during the first COVID-19-related lockdown, using paired-Mc Nemar chi-2 tests. We next described their level of information on Covid-19 and policy measures, broken down by sex.

RESULTS

Among the 100 participants, 68% had no legal residence permit. Food insecurity was more often reported during lockdown than before (62% vs 52%). 9% of participants had a score indicative of severe depression (PHQ9) before lockdown and 17% afterwards (p = 0.17). Only 51% knew about the possibility of asymptomatic transmission of the COVID-19 virus.

CONCLUSIONS

This study brings original information on a hard-to-reach population group. Our results suggest that the lockdown had a detrimental impact on various economic and mental health aspects among disadvantaged migrants residing in the Greater Paris area.

Smoking cessation using preference-based tools among socially disadvantaged smokers: study protocol for a pragmatic, multicentre randomised controlled trial

INTRODUCTION

Many smoking cessation aids such as nicotine replacement treatments and e-cigarettes have been proven effective in aiding smoking cessation attempts. Encouraging smokers with low socioeconomic position (SEP) to choose their smoking aid tool based on their preferences, and giving that tool free of charge, might increase the odds of smoking cessation. This trial examines the effectiveness of the 'STOP' (Sevrage Tabagique à l'aide d'Outils dédiés selon la Préférence: Smoking cessation using preference-based tools), a preference-based smoking cessation intervention for smokers with low SEP.

METHODS AND ANALYSIS

The STOP study is a randomised, multicentre, controlled trial (RCT). Smokers with low SEP and wishing to quit will be randomised to either the intervention or the control group (standard care). Participants in the intervention group will be asked to choose between different types of nicotine substitutes (patches, inhalers, gum, tablets, etc) and/or an electronic cigarette which will be delivered free of charge to aid their smoking cessation attempt.The primary outcome will be smoking abstinence at 6 months after inclusion, defined as self-reported 7-day point prevalence of tobacco abstinence. Secondary outcomes include the total number of days of abstinence at 6 months after inclusion, 7-day point prevalence tobacco abstinence at 1 and 3 months after inclusion and number of relapses.The study will also include an economic evaluation, and a process evaluation using a mixed methods approach.

ETHICS AND DISSEMINATION

The study was approved by the 'Île de France II' Institutional Review Board on 8 September 2020 (CPP Île de France II; Ref No: 20.01.31.65528 RIPH2 HPS), and results will be published in a peer-reviewed journal.

TRIAL REGISTRATION NUMBER

NCT04654585.

Smoking cessation using preference-based tools: a mixed method pilot study of a novel intervention among smokers with low socioeconomic position

Background

Compared to smokers with favorable socio-economic position (SEP), those with low SEP are less likely to have a successful smoking cessation attempt. Tailored approaches are therefore needed, and general practitioners could help reaching and assisting usually hard-to-reach population.

Method

STOP (Sevrage Tabagique à l’aide d’Outils dédiés selon la Préférence) is a pilot study, examining the feasibility, acceptability and potentiality of a smoking cessation intervention centered on smoker’s preference. Smokers with low SEP, wishing to quit, were recruited in six healthcare centers in the Greater Paris area. They were asked to choose between different types of nicotine replacement therapy (NRT) products and/or e-cigarette with liquids delivered free of charge to aid their smoking cessation attempt. We describe the characteristics of recruited participants, their perception of smoking cessation aids, and the evolution of their smoking status 4 to 6 weeks after recruitment.

Results

We recruited 49 participants, of which 29% chose an e-cigarette, 29% chose NRT and 42% chose both an e-cigarette and NRT. The intervention was shown to be acceptable by participants and health professionals. Among the 24 participants followed for at least one month, 14 (28% of all participants) stopped smoking, and 9 (18%) considerably reduced their consumption.

Conclusion

The STOP intervention is feasible and acceptable, even if more efforts should be made to limit lost-to-follow-up. This preference-based intervention also shows interesting prospect in helping smokers with low SEP quit smoking. We will test the efficacy of this preference-based intervention in a randomized controlled trial.

Maternal education and offspring birth weight for gestational age: the mediating effect of smoking during pregnancy

BACKGROUND

Small for gestational age (SGA) birth weight, a risk factor for infant mortality and delayed child development, is associated with maternal educational attainment. Maternal tobacco smoking during pregnancy could contribute to this association. We aimed to quantify the contribution of maternal smoking during pregnancy to social inequalities in child birth weight for gestational age (GA).

METHODS

Data come from the French nation-wide ELFE cohort study, which included 17 155 singletons. Birth weights for GA were calculated using z-scores. Associations between maternal educational attainment, tobacco smoking during pregnancy and child birth weight for GA were ascertained using mediation analysis. Mediation analyses were also stratified by maternal pre-pregnancy body mass index.

RESULTS

Low maternal educational attainment was associated with an increased odd of tobacco smoking during pregnancy [adjusted OR (ORa) = 2.58 (95% CI 2.34-2.84)] as well as a decrease in child birth weight for GA [RRa = 0.94 (95% CI 0.91-0.98)]. Tobacco smoking during pregnancy was associated with a decrease in offspring birth weight for GA [RRa = 0.73 (95% CI 0.70-0.76)]. Mediation analysis suggests that 39% of the effect of low maternal educational attainment on offspring birth weight for GA was mediated by smoking during pregnancy. A more important direct effect of maternal educational attainment on child birth weight for GA was observed among underweight women [RRa = 0.82 (95% CI 0.72-0.93)].

CONCLUSIONS

The relationship between maternal educational attainment and child birth weight for GA is strongly mediated by smoking during pregnancy. Reducing maternal smoking could lessen the occurrence of infant SGA and decrease socioeconomic inequalities in birth weight for GA.

Do the associations between the use of electronic cigarettes and smoking reduction or cessation attempt persist after several years of use? Longitudinal analyses in smokers of the CONSTANCES cohort

INTRODUCTION

We examined whether duration of electronic cigarette (e-cigarette) use could be associated with smoking reduction or cessation attempt.

METHODS

5,409 current smokers at baseline enrolled in the French CONSTANCES cohort in 2015 or 2016 were included. Duration of e-cigarette use was categorized as follows: never; former user for more than one year; former user for less than one year; new user for less than one year; return to use for less than one year; regular use for one to two years; regular use for more than two years. Two outcomes were considered at one-year of follow-up: change in the number of cigarettes per day and cessation attempt.

RESULTS

Compared to never users, former users had an increase in the number of cigarettes per day at follow-up (B = 0.95[95%CI:0.57-1.33] and B = 1.03[95%CI:0.47-1.59] for former users of more than one year and less than one year, respectively). Compared to never users, all categories of current users had a decrease in the number of cigarettes per day (B = -3.31[95%CI:-4.07;-2.54] and B = -4.18[95%CI:-5.06;-3.29] for new users of less than one year and users of more than two years, respectively). Compared to never users, former users had a decreased likelihood of cessation attempt (OR = 0.80[95%CI:0.67-0.95] and OR = 0.77[95%CI:0.60-0.99] for former users of more than one year and less than one year, respectively). Compared to never users, all categories of current users had an increased likelihood of cessation attempt (OR = 3.12[95%CI:2.32;4.19] and OR = 3.36[95%CI:2.39;4.72] for new users of less than one year and users of more than two years, respectively).

CONCLUSIONS

E-cigarette use was associated with smoking reduction and cessation attempt for individuals who have used it for less than one year and additional benefits are expected to occur with a longer duration of use. Former users of e-cigarettes had poorer outcomes than those who have never used them.

Work-related violence and depressive disorder among 955,573 employees followed for 6.99 million person-years. The Danish Work Life Course Cohort study: Work-related violence and depression

BACKGROUND

We examined the association between probability of work-related violence and first diagnosis of depressive disorder whilst accounting for the potential selection of individuals vulnerable to depression into occupations with high probability of work-related violence.

METHODS

Based on a pre-published study protocol, we analysed nationwide register data from the Danish Work Life Course Cohort study, encompassing 955,573 individuals followed from their entry into the workforce, and free from depressive disorder before work-force entry. Depressive disorder was measured from psychiatric in- and outpatient admissions. We measured work-related violence throughout the worklife by the annual average occupational risk of violence exposure. Using Cox proportional hazards regression, we examined the longitudinal association between work-related violence (both past year and cumulative life-long exposure) and first depressive disorder diagnosis, whilst adjusting for numerous confounders including parental psychiatric and somatic diagnoses, childhood socioeconomic position, and health services use before workforce entry.

RESULTS

The risk of depressive disorder was higher in individuals with high probability of past year work-related violence (hazard ratio: 1.11, 95% CI: 1.06-1.16) compared to employees with low probability of exposure, after adjustment for confounders. Among women, associations were robust across industries, whereas among men, associations were limited to certain industries.

LIMITATIONS

Violence was measured on the job group and not the individual level, likely resulting in some misclassification of the exposure.

CONCLUSIONS

Work-related violence may increase the risk of depressive disorder, independent of pre-existing risk factors for depressive disorder. These findings underline the importance of preventing work-related violence.

Cord Serum Cytokines at Birth and Children's Anxiety-Depression Trajectories From 3 to 8 Years: The EDEN Mother-Child Cohort

BACKGROUND

Recent research suggests that immune dysregulation in pregnancy could be a risk factor for anxiety and depression symptoms in offspring. Whereas animal studies have demonstrated the importance of the link between perinatal cytokines and abnormal behaviors in offspring, human epidemiological studies in this area remain limited. The objectives of the study were to describe the network of cord serum cytokines at birth and test whether they are associated with subsequent anxiety and depression symptom trajectories in offspring.

METHODS

We used data and biological samples from 871 mother-child pairs followed up from pregnancy to 8 years of age and participating in the French mother-child cohort EDEN (a study on the pre- and early postnatal determinants of child health and development). Cord serum cytokines were measured at birth. Children's symptoms of anxiety and depression were assessed with the emotional difficulties subscore of the Strength and Difficulties Questionnaire at ages 3, 5, and 8 years, from which trajectories of anxiety-depression symptoms were derived.

RESULTS

Results showed a significant association between cord serum interleukin-7 at birth and the trajectories of children's anxiety-depression symptoms between ages 3 to 8 years (adjusted odds ratio, 0.73; 95% confidence interval, 0.57-0.93). The associations considered relevant confounders, including prenatal maternal depressive symptoms.

CONCLUSIONS

Early immune changes may contribute to subsequent anxiety and depression symptoms in childhood. Beyond the understanding of mechanisms underlying the occurrence of emotional difficulties in children, our findings open avenues for future research in human and animals.

Sex differences in cigarette brand purchases among adult smokers: results from the DePICT national repeated survey of French adults (2016-2017)

OBJECTIVE

The tobacco industry has been reported to employ sex-specific marketing strategies, which include different types of tobacco packaging, publicity, as well as price strategies. We examined whether characteristics associated with the purchase of more expensive cigarette brands varied by sex, in the context of the introduction of plain tobacco packaging and the strengthening of tobacco control policies in France.

METHODS

Our study population consists of 1380 regular smokers of manufactured cigarettes from the DePICT study, a nation-wide two-wave survey of French adults aged 18-64 years. Participants were interviewed by telephone in 2016 and 2017. Factors associated with the use of more vs. less expensive cigarette brands were determined by multivariable logistic regression stratified by sex.

RESULTS

Several sex-specific factors were associated with the purchase of more expensive cigarette brands. In women, those factors included higher education, cannabis use, and no use of roll-your-own tobacco. While in men purchase of more expensive cigarette brands was linked to younger age, being born outside of France, living with a non-smoker, and attachment to the cigarette brand.

DISCUSSION

Factors which predict tobacco purchase patterns are different in women and men, highlighting the need for sex-specific tobacco control initiatives to counter the tobacco industry's gendered marketing.

Loneliness, worries, anxiety, and precautionary behaviours in response to the COVID-19 pandemic: A longitudinal analysis of 200,000 Western and Northern Europeans

BACKGROUND

In response to the COVID-19 pandemic, governments around the world instituted various public-health measures. Our project aimed to highlight the most significant similarities and differences in key mental-health indicators between four Western and Northern European countries, and identify the population subgroups with the poorest mental-health outcomes during the first months of the pandemic.

METHODS

We analysed time-series survey data of 205,084 individuals from seven studies from Denmark, France, the Netherlands, and the UK to assess the impact of the pandemic and associated lockdowns. All analyses focused on the initial lockdown phase (March-July 2020). The main outcomes were loneliness, anxiety, and COVID-19-related worries and precautionary behaviours.

FINDINGS

COVID-19-related worries were consistently high in each country but decreased during the gradual reopening phases. While only 7% of the respondents reported high levels of loneliness in the Netherlands, percentages were higher in the rest of the three countries (13-18%). In all four countries, younger individuals and individuals with a history of mental illness expressed the highest levels of loneliness.

INTERPRETATION

The pandemic and associated country lockdowns had a major impact on the mental health of populations, and certain subgroups should be closely followed to prevent negative long-term consequences. Younger individuals and individuals with a history of mental illness would benefit from tailored public-health interventions to prevent or counteract the negative effects of the pandemic. Individuals across Western and Northern Europe have thus far responded in psychologically similar ways despite differences in government approaches to the pandemic.

FUNDING

See the Funding section.

Developmental profiles of childhood attention-deficit/hyperactivity disorder and irritability: association with adolescent mental health, functional impairment, and suicidal outcomes

BACKGROUND

Irritability is frequently comorbid with ADHD. Although irritability alone has been linked to deleterious mental health and adaptive issues, the joint developmental course of ADHD and irritability symptoms during childhood as well as its association with later mental health and suicidal outcomes is not fully understood. We aimed to describe the developmental trajectories of childhood ADHD and irritability symptoms and to quantify their association with adolescent mental health and suicidal outcomes.

METHODS

The Quebec Longitudinal Study of Child Development (QLSCD) included 1407 participants from the general population followed up from age 5 months to 17 years. We used a multitrajectory approach to identify developmental trajectories of childhood (6-12 years) ADHD and irritability symptoms. Outcome measures were adolescent (13-17 years) mental health (psychiatric symptoms/functional impairment) and suicidal outcomes.

RESULTS

We identified distinct developmental profiles: combined absent or very low ADHD and absent or very low irritability (940 [66.8%]; reference group), moderately high irritability and low ADHD (158 [11.2%]), moderately high ADHD and low irritability (198 [14.1%]), and combined high ADHD and high irritability (111 [7.9%]). Multivariate modeling showed that, compared to children in the reference group, those in the combined high ADHD and high irritability profile showed higher levels of ADHD continuity (d ranges = 0.40-0.50), externalizing (d ranges = 0.25-0.59), internalizing (d ranges = 0.20-0.29), and functional impairments (d ranges = 0.17-0.48) and suicidal behaviors (odds ratio (OR) = 2.12, confidence interval (CI) = 1.47-3.06) in adolescence.

CONCLUSIONS

The presence of persistently high levels of irritability along with ADHD symptoms during childhood significantly predicts adolescent ADHD continuity, externalizing, internalizing, and suicidal outcomes. Systematic consideration of irritability when assessing and treating ADHD may improve long-term mental health outcomes.

Prenatal Diet and Children's Trajectories of Anxiety and Depression Symptoms from 3 to 8 Years: The EDEN Mother-Child Cohort

BACKGROUND

Maternal diet quality during pregnancy has been linked to offspring's physical and mental health outcomes across the lifespan. However, few studies have examined its association with subsequent offspring's anxiety and depression issues.

OBJECTIVES

The objective of the study was to examine the relationship between maternal prenatal dietary patterns and offspring's anxiety and depression symptoms from 3 to 8 years.

METHODS

We used data from 1242 children enrolled in the French EDEN (Etude des déterminants pré- et postnatals précoces du développement et de la santé de l'enfant) birth cohort. Maternal third trimester dietary patterns-namely, "Healthy" (i.e., high intake in fruit, vegetables, fish, and whole-grain cereals) and "Western" (i.e., high intake in processed and snacking foods) patterns-were evaluated using a validated qualitative FFQ. Children's anxiety and depression symptoms (i.e., fears, worries, misery, nervousness, and somatic symptoms) were assessed by mothers using the Strengths and Difficulties Questionnaire at ages 3, 5, and 8 years, from which trajectories were derived using group-based trajectory modeling. We used logistic regressions to analyze the associations between maternal dietary patterns and children's anxiety and depression symptom trajectories.

RESULTS

We identified 2 trajectories of anxiety and depression symptoms from 3 to 8 years of age: low to moderate (n = 1058; reference group) and moderately high (n = 184). Maternal low adherence to the Healthy dietary pattern in the third trimester was significantly associated with moderately high children's anxiety and depression symptom trajectories from 3 to 8 years (OR, 1.87; 95% CI, 1.40-2.51), in crude and adjusted analyses. The maternal Western dietary pattern was not significantly associated with anxiety and depression symptom trajectories.

CONCLUSIONS

High maternal prenatal adherence to a Healthy dietary pattern was negatively related to anxiety and depression symptoms in children. As maternal diet is a key lifestyle factor, further research should investigate its association with subsequent offspring anxiety and depression symptoms in aiming to later inform prevention strategies focusing on pregnancy.