Christine Hassler
French Institute of Health and Medical Research
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Christine Hassler.
Child Abuse & Neglect | 1997
Marie Choquet; Jean-Michel Darves-Bornoz; Sylvie Ledoux; Robert Manfredi; Christine Hassler
OBJECTIVES To measure the prevalence rate of rape among French adolescents; to analyze the associated health and behavioral problems; to analyze the use of the health care system by rape victims. METHOD A national representative sample of 8,140 students attending public secondary schools in France (grades 8 to 12) filled in a self-administered questionnaire (274 questions) on health and behavior problems (acceptance rate = 87%). Each rape victim in the sample (n = 61) was matched to two nonvictims (n = 122). RESULTS The reported prevalence rate of rape was .8% (.9% among girls, .6% among boys). For both boys and girls, there was a relationship between rape and current sleep difficulties, depressive symptoms, somatic complaints, tobacco consumption, and behavior problems (running away, violent behavior, stealing, and school absenteeism). Additional problems were associated for boy rape victims: attempted suicide, regular use of alcohol and of illicit drugs. Rape victims did consult health professionals, but the majority saw neither a mental health specialist nor a social worker. CONCLUSION The findings indicate that rape victims, especially boys, have more behavior problems and health problems than nonrape victims. Authors suggest that adolescents who have ran away from home, attempted suicide, or manifested violent behavior should be systematically asked about rape.
Life Sciences | 1999
Nadine Bouby; Christine Hassler; Lise Bankir
We have previously shown that a chronic reduction in plasma vasopressin level slowed the progression of chronic renal failure (CRF) in Sprague Dawley rats. The aim of the present study was to determine the respective contribution of pressor (V1) and antidiuretic (V2) effects of vasopressin on progression. Male homozygous Brattleboro rats with hereditary central diabetes insipidus were submitted to 5/6 nephrectomy. They were divided into three groups, two of which received chronic i.p. infusion of AVP (V1 + V2 effects) or dDAVP (V2 effects). The third group served as control (CONT). The doses of AVP and dDAVP were chosen so as to produce urine osmolality similar to that observed in 5/6 Nx Sprague Dawley rats. All rats ate the same amount of food and drank water ad libitum. Renal function was studied for 13 weeks. All three groups showed a marked hypertension. Rats infused with dDAVP, but not those infused with AVP, had a higher creatininemia, anemia and urinary protein excretion than CONT rats. In the dDAVP but not the AVP group, fractional excretion of urea was markedly decreased and plasma urea concentration rose much more than that of creatinine. These results show that V2 but not V1 effects play a major role in the deleterious influence of vasopressin on progression, at least in Brattleboro rats. The more severe progression seen in dDAVP rats could indirectly result from the V2-mediated effects on the collecting duct resulting in a decreased efficiency of urea excretion, an increased intrarenal urea recycling, and a rise in plasma urea concentration. Both the toxic effects of urea and the recently demonstrated V2-mediated increase in glomerular hemodynamics might be involved in the deleterious influence of V2 agonism.
Child and Adolescent Psychiatry and Mental Health | 2013
Angèle Consoli; Hugo Peyre; Mario Speranza; Christine Hassler; Bruno Falissard; Evelyne Touchette; David Cohen; Marie Rose Moro; Anne Revah-Levy
ContextSuicide is the second leading cause of death in adolescents and young adults in Europe. Reducing suicides is therefore a key public health target. Previous studies have shown associations between suicidal behaviors, depression and family factors.ObjectiveTo assess the role of family factors in depression and suicidality in a large community-based sample of adolescents and to explore specific contributions (e.g. mother vs. father; conflict vs. no conflict; separation vs. no separation) taking into account other risk factors.MethodsA cross-sectional sample of adolescents aged 17 years was recruited in 2008. 36,757 French adolescents (18,593 girls and 18,164 boys) completed a questionnaire including socio-demographic characteristics, drug use, family variables, suicidal ideations and attempts. Current depression was assessed with the Adolescent Depression Rating Scale (ADRS). Adolescents were divided into 4 groups according to suicide risk severity (grade 1 = depressed without suicidal ideation and without suicide attempts, grade 2 = depressed with suicidal ideations and grade 3 = depressed with suicide attempts; grade 0 = control group). Multivariate regressions were applied to assess the Odds Ratio of potential risk factors comparing grade 1, 2 or 3 risk with grade 0.Results7.5% of adolescents (10.4% among girls vs. 4.5% among boys) had ADRS scores compatible with depression; 16.2% reported suicidal ideations in the past 12 months and 8.2% reported lifetime suicide attempts. Repeating a year in school was significantly associated to severity grade of suicide risk (1 and 3), as well as all substance use, tobacco use (severity grades 2 and 3) and marijuana use (severity grade 3), for girls and boys. After adjustment, negative relationships with either or both parents, and parents living together but with a negative relationship were significantly associated with suicide risk and/or depression in both genders (all risk grades), and Odds Ratios increased according to risk severity grade.ConclusionFamily discord and negative relationship with parents were associated with an increased suicide risk in depressed adolescents. So it appears essential to take intrafamilial relationships into account in depressed adolescents to prevent suicidal behaviours.
Addiction | 2009
Yann Le Strat; N. Ramoz; John Horwood; Bruno Falissard; Christine Hassler; Lucia Romo; Marie Choquet; David M. Fergusson; Philip Gorwood
AIM To assess the association between first reactions to cannabis and the risk of cannabis dependence. DESIGN A cross-sectional population-based assessment in 2007. SETTING A campus in a French region (Champagne-Ardennes). PARTICIPANTS A total of 1472 participants aged 18-21 years who reported at least one life-time cannabis consumption, of 3056 students who were screened initially [the Susceptibility Addiction Gene Environment (SAGE) study]. MEASUREMENTS Positive and negative effects of first cannabis consumptions, present cannabis dependence and related risk factors were assessed through questionnaires. FINDINGS The effects of first cannabis consumptions were associated dose-dependently with cannabis dependence at age 18-21 years, both according to the transversal approach of the SAGE study and to the prospective cohort of the Christchurch Health and Development Study (CHDS) assessed at the age of 25 years. Participants of the SAGE study who reported five positive effects of their first cannabis consumption had odds of life-time cannabis dependence that were 28.7 (95% confidence interval: 14.6-56.5) higher than those who reported no positive effects. This association remains significant after controlling for potentially confounding factors, including individual and familial variables. CONCLUSIONS This study suggests an association between positive reactions to first cannabis uses and risk of life-time cannabis dependence, this variable having a central role among, and through, other risk factors.
European Child & Adolescent Psychiatry | 2004
F. Pagès; Philippe Arvers; Christine Hassler; Marie Choquet
Abstract.Aim:To study the specificity of hospitalized adolescent suicide attempters.Method:Among a national sample of students (n = 11,718, mean age = 16.6 years) studied in 1999, 9.2% (n = 1078) made at least one suicide attempt during their life (SA); 21.9% (n = 234) of them were hospitalized (HSA). We identified the risk factors (family, school, behavioral and psychological) of SA and HSA by comparing (by gender) a) suicide attempters to non-suicide attempters and b) hospitalized suicide attempters to non-hospitalized suicide attempters.Results:Both for girls and boys, the risk factors for SA varied. However, certain risk factors, particularly depressive mood, low self-esteem and poor parent-child relationships, were not associated with hospitalization. Hospitalized suicide attempters had more personal and social problems. But there is an important difference according to gender: in boys, hospitalization is related to physical fighting (OR = 2.2) and offences (OR = 3.4), in girls to running away (OR = 1.7), consumption of illegal drugs other than cannabis (OR = 2.0), having a living standard outside average (OR = 2.0) and going to a private school (OR = 1.7).Conclusion:Suicide attempters with problem behavior are more at risk of being hospitalized than others. However, the difference between hospitalized and non-hospitalized subjects was smaller than expected.
European Journal of Public Health | 2008
Caroline Huas; Christine Hassler; Marie Choquet
BACKGROUND The association between cannabis use and health or behaviour problems is quite well established. Little is known about the risk markers related to occasional or former use. This work aims to explore associations between well-being in life and different levels of cannabis use. METHODS A total of 16 934 French adolescents completed self-administered multi-choice questionnaires (from the European Study ESPAD 2003) on substance consumption, psychopathology, socio-demographics and schooling. Four groups were defined according to cannabis use: Never-Users (no lifetime consumption and no consumption during the last month), Former Users (at least one lifetime consumption but none in the last month), Current Occasional Users (<5 times during the previous month) and Current Heavy Users (> or =5 times during the previous month). Analyses were performed with SAS 8.2 software and adjusted for gender and age. RESULTS A total of 68.2% of students aged 12-19 years were Never-Users, 15.5% Former Users, 8.3% Current Occasional Users and 8.0% Current Heavy Users. When Former Users were compared with Never-Users, significant differences were found with regard to suicide attempt, odds ratio (OR) = 2.9 (2.4-3.4); multiple acts of violence, OR = 6.4 (5.4-7.7) and running away from home, OR = 3.1 (2.5-3.8). These differences were greater when Current Occasional Users were compared with Never-Users: suicide attempt, OR = 4.2 (3.5-5.0); multiple acts of violence, OR = 12.6 (10.2-15.5) and running away from home OR = 4.2 (3.4-5.4). Differences remain even after adjustment for alcohol and tobacco consumption. CONCLUSIONS These results showed that occasional and even former marijuana use is associated with risky behaviour among adolescents.
Drug and Alcohol Dependence | 2016
A. Ali; Arnaud Carré; Christine Hassler; S. Spilka; A. Vanier; Caroline Barry; Sylvie Berthoz
BACKGROUND The prevention of addictions in young people is a challenge for Mental and Public Health policies, and requires specific risk-screening tools. Specific personality traits, as assessed using the Substance Use Risk Profile Scale (SURPS), could play a key role in the onset and escalation of substance use. This study aimed to examine (1) measurement invariance across age and gender (2) the effects of age and gender on associations between SURPS scores and the most frequently-consumed substances. METHODS Analyses were based on the responses from 5069 participants (aged 14-20 years) from the 2011 ESPAD-France dataset. Substance-use outcomes were experimentation and current frequency of alcohol, tobacco and cannabis use, and drunkenness. RESULTS Our approach, consisting in analysing measurement and structural invariance and interaction terms, established the stability of (i) SURPS profiles, and (ii) relationships between these scores and substance experimentation and use over a developmental period ranging from mid-adolescence to early adulthood. Measurement invariance across genders was also confirmed despite the absence of scalar invariance for 2 items. Significant interactions between gender and SURPS factors were established, highlighting differential vulnerability, especially concerning Hopelessness and experimentation of alcohol and drunkenness, or Impulsivity and tobacco experimentation. Finally, Anxiety Sensitivity could be protective against substance use, especially for cannabis in girls. CONCLUSIONS Our results suggest the relevance of the SURPS to assess vulnerability towards drug use, and underline the need to consider gender differences in addiction risks.
Psychiatry Research-neuroimaging | 2017
Aminata Ali; Arnaud Carré; Massimiliano Orri; M. Urbach; Caroline Barry; Christine Hassler; Bruno Falissard; Sylvie Berthoz; Clementine Nordon
The objectives of the present study were to describe the prescribing patterns for psychosocial therapies in routine clinical practice and to assess the impact of psychoeducation on symptoms and social autonomy of patients with schizophrenia. We used data from the nationwide French ESPASS observational cohort study including 5967 patients with schizophrenia, which provided data on exposure to psychosocial therapies from 4961 (83%) participants. Patients who initiated psychosocial therapy within the first 3 months of study onset (n=143) were compared to patients not subject to psychosocial therapy throughout follow up (n=4268), using parametric tests. Symptom severity and social autonomy at 6 months from baseline were compared between patients undergoing psychoeducation (n=117) and patients not subject to psychosocial therapy, matched (1:1) on propensity scores. Patients who initiated psychosocial therapy were significantly younger, more severely ill and used less often antipsychotic drugs than patients in the reference group. At 6 months, patients who initiated psychoeducation and their matched referents did not differ significantly in terms of symptom severity, but their level of improvement in social autonomy was significantly greater (p=0.005). In routine clinical practice, psychoeducation in addition to antipsychotic drugs provides some benefit among schizophrenia patients, particularly in terms of social autonomy.
European Psychiatry | 2015
Massimiliano Orri; Caroline Barry; Christine Hassler; Emmanuel Boleslawski; J.M. Reimbeau; Y.P. Le Treut; Philippe Bachellier; Olivier Scatton; J.-Y. Mabrut; Mustapha Adham; Eric Vibert; A. Revah-Levy; O. Farges
Introduction Depression is one of the main causes of disability in the Western countries. This evidence presents new challenges for somatic medicine, such as surgery. Objectives To determine the influence of patients’ depression on (i) length of hospital stay (LOS, which is a proxy of recovery) after major surgery, and (ii) LOS anticipated by surgeon preoperatively. Aims To explore the influence of depression on recovery after major surgery, and whether and how surgeons take into account patients’ emotional and psychological status in the care of their patients. Methods Prospective multicentre observational study. Depression was assessed with HADS (HADS > 8 showing the presence of significant depression). Two cox PH models were fitted to evaluate the influence of depression on patients’ LOS (first model) and anticipated LOS (second model). Adjustment variables were (i) preoperative (age, sex, anxiety, diagnosis, BMI, biology), (ii) intraoperative (blood transfusion, length of intervention), (iii) postoperative (morbidity). Results Of 372 recruited patients (which had undergone major liver surgery), 69 (18,5%) had HADS>8. After adjustment, depression was a risk factor for a prolonged LOS (HR 1.96, 95%CI 1.44–2.63). However, depression was unrelated to the anticipated LOS (HR 1.26, 95%CI 0.90–1.66). Conclusions 1 in 5 patients presented a significant level of depression. Depression was independently associated to longer LOS (ie. longer recovery time after surgery). However this data was not taken into account by surgeons, which failed to integrate that in their previsions. A psychiatric culture and education need to be developed in surgery, as well as more collaboration.
Alcohol and Alcoholism | 2007
Marie Choquet; Christine Hassler; Delphine Morin; Bruno Falissard; Nearkasen Chau