Nicolas Hoertel

Dr. Nicolas Hoertel

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 July 2020 in Nature Medicine
Verified
Journal Article
Open access
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NHNicolas Hoertel
Nicolas Hoertel
MBMartin Blachier
Martin Blachier
CBCarlos Blanco
Carlos Blanco
MOMark Olfson
Mark Olfson
MMMarc Massetti
Marc Massetti
HLHenri Leleu
Henri Leleu
Many European countries have responded to the COVID-19 pandemic by implementing nationwide protection measures and lockdowns1. However, the epidemic could rebound when such measures are relaxed, possibly leading to a requirement for a second or more, repeated lockdowns2. Here, we present results of a stochastic agent-based microsimulation model of the COVID-19 epidemic in France. We examined the potential impact of post-lockdown measures, including physical distancing, mask-wearing and shielding individuals who are the most vulnerable to severe COVID-19 infection, on cumulative disease incidence and mortality, and on intensive care unit (ICU)-bed occupancy. While lockdown is effective in containing the viral spread, once lifted, regardless of duration, it would be unlikely to prevent a rebound. Both physical distancing and mask-wearing, although effective in slowing the epidemic and in reducing mortality, would also be ineffective in ultimately preventing ICUs from becoming overwhelmed and a subsequent second lockdown. However, these measures coupled with the shielding of vulnerable people would be associated with better outcomes, including lower mortality and maintaining an adequate ICU capacity to prevent a second lockdown. Benefits would nonetheless be markedly reduced if most people do not adhere to these measures, or if they are not maintained for a sufficiently long period.

4 February 2021 in Molecular Psychiatry
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Journal Article
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NHNicolas Hoertel
Nicolas Hoertel
MSMarina Sánchez-Rico
Marina Sánchez-Rico
RVRaphaël Vernet
Raphaël Vernet
NBNathanaël Beeker
Nathanaël Beeker
AJAnne-Sophie Jannot
Anne-Sophie Jannot
FLFrédéric Limosin
Frédéric Limosin

22 July 2015 in The Journal of Clinical Psychiatry
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Journal Article
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NHNicolas Hoertel
Nicolas Hoertel
SFSilvia Franco
Silvia Franco
MWMelanie M. Wall
Melanie M. Wall
MOMaria A. Oquendo
Maria A. Oquendo
SWShuai Wang
Shuai Wang
CBCarlos Blanco
Carlos Blanco
From The Journal of Clinical Psychiatry:

1 August 2014 in European Psychiatry
Verified
Journal Article
Closed access
NHNicolas Hoertel
Nicolas Hoertel
FLF. Limosin
F. Limosin
HLH. Leleu
H. Leleu
Background: Research on the impact of the continuity of care (COC) on health outcomes in patients with mental illness is limited. This observational study examined whether the longitudinal COC is associated with a decreased likelihood of death among patients with mental disorders in the French general population.Method: Data were derived from the French National Health Insurance (NHI) reimbursement database. Patients with any mental disorder who visited a psychiatrist at least twice within 6 months were included. The primary endpoint was death by all causes. We measured longitudinal COC with a psychiatrist twice a year between 2007 and 2010, using the COC index developed by Bice and Boxerman. The COC index was analysed as a time-dependent variable in a survival analysis after adjustments for age, gender and stratifying on comorbidities and social status.Results: Among 14,515 patients visiting a psychiatrist at least twice in 6 months and tracked over 3 years, likelihood of death was significantly lower in patients with higher continuity of care (hazard ratio for an increase in 0.1 of continuity, adjusted for age, sex, and stratified on comorbidities and social status: 0.83 [0.83–0.83]), particularly in those with bipolar disorder, major depressive disorder and schizophrenia.Conclusion: Improving longitudinal continuity of care in mental health care may contribute to substantially decrease mortality.

6 November 2018 in Nutrients
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Journal Article
Open access
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JMJoane Matta
Joane Matta
SCSébastien Czernichow
Sébastien Czernichow
EEmmanuelle Kesse-Guyot
Emmanuelle Kesse-Guyot
NHNicolas Hoertel
Nicolas Hoertel
FLFrédéric Limosin
Frédéric Limosin
CLCédric Lemogne
Cédric Lemogne
The association between depressive symptoms and vegetarian diets is controversial. This study examines the cross-sectional association between depressive symptoms and vegetarian diets while controlling for potential confounders. Among 90,380 subjects from the population-based Constances cohort, depressive symptoms were defined by a score ≥19 on the Centre of Epidemiologic Studies-Depression (CES-D) scale and diet types (omnivorous, pesco-vegetarian, lacto-ovo-vegetarian and vegan) were determined with a food frequency questionnaire. Associations between depressive symptoms and diet were estimated through logistic regressions adjusting for socio-demographics, other foods, alcohol and tobacco consumption, physical activity and health-related concerns; specificity analyses considered the exclusion of any other food group. Depressive symptoms were associated with pesco-vegetarian and lacto-ovo-vegetarian diets in multivariable analyses (Odds-Ratio [95% confidence interval]: 1.43 [1.19–1.72] and 1.36 [1.09–1.70], respectively), especially in case of low legumes intake (p for interaction < 0.0001), as well as with the exclusion of any food group (e.g., 1.37 [1.24–1.52], 1.40 [1.31–1.50], 1.71 [1.49–1.97] for meat, fish and vegetables exclusion, respectively). Regardless of food type, the Odds-Ratio of depressive symptoms gradually increased with the number of excluded food groups (p for trend < 0.0001). Depressive symptoms are associated with the exclusion of any food group from the diet, including but not restricted to animal products.

1 October 2015 in Journal of Psychiatric Research
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Journal Article
Closed access
KMKibby McMahon
Kibby McMahon
NHNicolas Hoertel
Nicolas Hoertel
MWMelanie M. Wall
Melanie M. Wall
MOMayumi Okuda
Mayumi Okuda
FLFrédéric Limosin
Frédéric Limosin
CBCarlos Blanco
Carlos Blanco