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Dive into the research topics where Alexandra A. N’Goran is active.

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Featured researches published by Alexandra A. N’Goran.


International Journal of Drug Policy | 2014

Peer pressure and alcohol use in young men: A mediation analysis of drinking motives

Joseph Studer; Stéphanie Baggio; Stéphane Deline; Alexandra A. N’Goran; Yves Henchoz; Meichun Mohler-Kuo; Jean-Bernard Daeppen; Gerhard Gmel

BACKGROUND Peer pressure (PP) has been shown to play a major role in the development and continuation of alcohol use and misuse. To date, almost all the studies investigating the association of PP with alcohol use only considered the PP for misconduct but largely ignored other aspects of PP, such as pressure for peer involvement and peer conformity. Moreover, it is not clear whether the association of PP with alcohol use is direct or mediated by other factors. The aim of the present study was to investigate the association of different aspects of peer pressure (PP) with drinking volume (DV) and risky single-occasion drinking (RSOD), and to explore whether these associations were mediated by drinking motives (DM). METHODS A representative sample of 5521 young Swiss men, aged around 20 years old, completed a questionnaire assessing their usual weekly DV, the frequency of RSOD, DM (i.e. enhancement, social, coping, and conformity motives), and 3 aspects of PP (i.e. misconduct, peer involvement, and peer conformity). Associations between PP and alcohol outcomes (DV and RSOD) as well as the mediation of DM were tested using structural equation models. RESULTS Peer pressure to misconduct was associated with more alcohol use, whereas peer involvement and peer conformity were associated with less alcohol use. Associations of drinking outcomes with PP to misconduct and peer involvement were partially mediated by enhancement and coping motives, while the association with peer conformity was partially mediated by enhancement and conformity motives. CONCLUSIONS Results suggest that PP to misconduct constitutes a risk factor, while peer conformity and peer involvement reflect protective factors with regard to alcohol use. Moreover, results from the mediation analyses suggest that part of the association of PP with alcohol use came indirectly through DM: PP was associated with DM, which in turn were associated with alcohol use.


Journal of Health Psychology | 2016

Validation of French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire among young Swiss males, and its relationship with substance use

Marc Dupuis; Joseph Studer; Yves Henchoz; Stéphane Deline; Stéphanie Baggio; Alexandra A. N’Goran; Meichun Mohler-Kuo; Gerhard Gmel

This study main purpose was the validation of both French and German versions of a Perceived Neighborhood Social Cohesion Questionnaire. The sample group comprised 5065 Swiss men from the “Cohort Study on Substance Use Risk Factors.” Multigroup Confirmatory factor analysis showed that a three-factor model fits the data well, which substantiates the generalizability of Perceived Neighborhood Social Cohesion Questionnaire factor structure, regardless of the language. The Perceived Neighborhood Social Cohesion Questionnaire demonstrated excellent homogeneity (α = 95) and split-half reliability (r = .96). The Perceived Neighborhood Social Cohesion Questionnaire was sensitive to community size and participants’ financial situation, confirming that it also measures real social conditions. Finally, weak but frequent correlations between Perceived Neighborhood Social Cohesion Questionnaire and alcohol, cigarette, and cannabis dependence were measured.


Journal of Drug Issues | 2014

Patterns and Transitions in Substance Use Among Young Swiss Men: A Latent Transition Analysis Approach

Stéphanie Baggio; Joseph Studer; Stéphane Deline; Alexandra A. N’Goran; Marc Dupuis; Yves Henchoz; Meichun Mohler-Kuo; Jean-Bernard Daeppen; Gerhard Gmel

This study investigates the potential stages of drug use. Data from the longitudinal Cohort Study on Substance Use Risk Factors were used (N = 5,116). Drug use (alcohol, tobacco, and 16 illicit drugs) over the previous 12 months was assessed at two time points. Patterns and trajectories of drug use were studied using latent transition analysis (LTA). This study’s substantive contributions are twofold. First, the pattern of drug use displayed the well-known sequence of drug involvement (licit drugs to cannabis to other illicit drugs), but with an added distinction between two kinds of illicit drugs (“middle-stage” drugs: uppers, hallucinogens, inhaled drugs; and “final-stage” drugs: heroin, ketamine, GHB/GBL, research chemicals, crystal meth, and spice). Second, subgroup membership was stable over time, as the most likely transition was remaining in the same latent class.


Journal of Substance Use | 2015

Cannabis use and other illicit drug use: do subjective experiences during first cannabis use increase the probability of using illicit drug?

Stéphanie Baggio; Yves Henchoz; Joseph Studer; Stéphane Deline; Alexandra A. N’Goran; Meichun Mohler-Kuo; Jean-Bernard Daeppen; Gerhard Gmel

Abstract Background and aims: Few studies have examined whether subjective experiences during first cannabis use are related to other illicit drug (OID) use. This study investigated this topic. Methods: Baseline data from a representative sample of young Swiss men was obtained from an ongoing Cohort Study on Substance Use Risk Factors (N = 5753). Logistic regressions were performed to examine the relationships between cannabis use and of subjective experiences during first cannabis use with 15 OID. Results: Positive experiences increased the likelihood of using hallucinogens (hallucinogens, salvia divinorum, spice; p < 0.015), stimulants (speed, ecstasy, cocaine, amphetamines/methamphetamines; p < 0.006) and also poppers, research chemicals, GHB/GBL, and crystal meth (p < 0.049). Sniffed drugs (poppers, solvents for sniffing) and “hard” drugs (heroin, ketamine, research chemicals, GHB/GBL and crystal meth) were more likely to be used by participants who experienced negative feelings on first use of cannabis (p < 0.034). Conclusion: Subjective feelings seemed to amplify the association of cannabis with OID. The risk increased for drugs with effects resembling feelings experienced on first cannabis use. Negative experiences should also be a concern, as they were associated with increased risk of using the “hardest” illicit drugs.


Journal of Psychoactive Drugs | 2014

Concurrent Versus Simultaneous Use of Alcohol and Non-Medical Use of Prescription Drugs: Is Simultaneous Use Worse for Mental, Social, and Health Issues?

Stéphanie Baggio; Stéphane Deline; Joseph Studer; Alexandra A. N’Goran; Meichun Mohler-Kuo; Jean-Bernard Daeppen; Gerhard Gmel

Abstract This study investigated the difference between concurrent and simultaneous use of alcohol and non-medical use of prescription drugs (NMUPD) in relation to mental, social, and health issues. The 544 study participants of the Swiss ongoing Cohort Study on Substance Use Risk Factors (C-SURF) had a combined use of alcohol with NMUPD during the previous 12 months. Alcohol-related problems (i.e., dependence and consequences), as well as mental, social, and health concerns (i.e., depression, general mental/physical health, and social/health consequences), were assessed. The simultaneous use of alcohol and NMUPD proved to be a greater risk factor for mental, social, and health issues than concurrent use. This study adds information regarding simultaneous polydrug use, which results in distinct effects compared to concurrent use, including important social, psychosocial, and health-related consequences.


BMJ Open | 2018

Prevalence of multimorbidity in general practice: a cross-sectional study within the Swiss Sentinel Surveillance System (Sentinella)

Sophie Excoffier; Lilli Herzig; Alexandra A. N’Goran; Anouk Déruaz-Luyet; Dagmar M. Haller

Objectives To estimate the prevalence of multimorbidity using a list of 75 chronic conditions derived from the International Classification for Primary Care, Second edition and developed specifically to assess multimorbidity in primary care. Our aim was also to provide prevalence data for multimorbidity in primary care in a country in which general practitioners (GPs) do not play a gatekeeping role in the health system. Setting A representative sample of GPs within the Swiss Sentinel Surveillance Network. Participants 118 GPs completed a paper-based questionnaire about 25 consecutive patients of all ages between September and November 2015. There were no patient exclusion criteria. Recorded data included date of birth, gender and the patients’ chronic conditions. Primary and secondary outcome measures We estimated the prevalence of multimorbidity, defined as ≥2, and ≥3 chronic conditions stratified by gender and age group, and adjusted for clustering by GPs. We also computed the prevalence of each chronic condition individually and grouped by system. Results Data from 2904 patients were included (mean age (SD)=56.5 (20.5) years; male=43.7%). Prevalence was 52.1% (95% CI 48.6% to 55.5%) for ≥2 and 35.0% (95% CI 31.6% to 38.5%) for ≥3 chronic conditions, with no significant gender differences. Prevalence of two or more chronic conditions was low (6.2%, 95% CI 2.8% to 13.0%) in those below 20 but affected more than 85% (85.8%, 95% CI 79.6% to 90.3%) of those above the age of 80. The most prevalent conditions were cardiovascular (42.7%, 95% CI 39.7% to 45.7%), psychological (28.5%, 95% CI 26.1% to 31.1%) and metabolic or endocrine disorders (24.1%, 95% CI 21.6% to 26.7%). Elevated blood pressure was the most prevalent cardiovascular condition and depression the most common psychological disorder. Conclusion In a country in which GPs do not play a gatekeeping role within the health system, the prevalence of multimorbidity, as assessed using a list of chronic conditions specifically relevant to primary care, is high and increases with age.


PLOS ONE | 2017

Comparing the self-perceived quality of life of multimorbid patients and the general population using the EQ-5D-3L.

Alexandra A. N’Goran; Anouk Déruaz-Luyet; Dagmar M. Haller; Andreas Zeller; Thomas Rosemann; Sven Streit; Lilli Herzig

Objectives To assess and compare the self-perceived Health Related Quality of Life (HRQoL) of multimorbid patients and the general population using health utilities (HU) and visual analogue scale (VAS) methods. Methods We analyzed data (n = 888) from a national, cross-sectional Swiss study of multimorbid patients recruited in primary care settings. Self-perceived HRQoL was assessed using the EQ-5D-3L instrument, composed of 1) a questionnaire on the five dimensions of mobility, self-care, usual activities, pain/discomfort, and anxiety/depression (EQ-5D dimensions), and 2) a 0–100 (0 = worst- and 100 = best-imaginable health status) VAS. We described the EQ-5D dimensions and VAS and computed HU using a standard pan-European value set. HU and VAS are the two components of the overall HRQoL assessment. We examined the proportions of multimorbid patients reporting problems (moderate/severe) in each EQ-5D dimension, corresponding proportions without problems, and mean HU and VAS values across patient characteristics. To test differences between subgroups, we used chi-square tests for dichotomous outcomes and T-tests (ANOVA if more than two groups) for continuous outcomes. Finally, we compared observed and predicted HU and VAS values. Results All 888 participants answered every EQ-5D item. Mean (SD) HU and VAS values were 0.70 (0.18) and 63.2 (19.2), respectively. HU and VAS were considerably and significantly lower in multimorbid patients than in the general population and were also lower in multimorbid patients below 60 years old and in women. Differences between observed and predicted means (SD) were -0.07 (0.18) for HU and -11.8 (20.3) for VAS. Conclusions Self-perceived HRQoL is considerably and significantly affected by multimorbidity. More attention should be given to developing interventions that improve the HRQoL of multimorbid patients, particularly women and those aged below 60 years old.


Journal of Substance Use | 2016

Associations of age at cannabis first use and later substance abuse with mental health and depression in young men

Yves Henchoz; Alexandra A. N’Goran; Stéphanie Baggio; Stéphane Deline; Joseph Studer; Gerhard Gmel

Abstract Purpose: This study aimed to determine if the associations between age at cannabis first use and mental health and depression persist after controlling for the misuse of cannabis, other illicit drugs, alcohol and cigarettes. Methods: Baseline data from an ongoing cohort study on substance use risk factors were used (N = 5521). The association between age at cannabis first use and the frequency of cannabis use was assessed using a Cox proportional hazard model. Associations with other illicit drug use, alcohol dependence, nicotine dependence, mental health and depression were tested using linear regressions and logistic regressions. Results: Participants using cannabis “almost every day” were on an average two years younger at cannabis first use than those using cannabis “once a month or less”. Age at cannabis first use was also associated with other illicit drug use, alcohol dependence and nicotine dependence. Associations with mental health and depression were substantially attenuated after adjustment for the misuse of cannabis and other substances. Conclusions: These findings show that early cannabis onset is associated with later impairments in mental health and depression; however, these are largely explained by later substance abuse. Effective preventive measures are needed to delay cannabis onset and to avoid the progression from cannabis to using other drugs.


BMJ Open | 2018

Factors associated with health literacy in multimorbid patients in primary care: a cross-sectional study in Switzerland

Alexandra A. N’Goran; Jérôme Pasquier; Anouk Déruaz-Luyet; Bernard Burnand; Dagmar M. Haller; Stefan Neuner-Jehle; Andreas Zeller; Sven Streit; Lilli Herzig; Patrick Bodenmann

Objective To identify factors associated with health literacy in multimorbid patients. Design A nationwide cross-sectional study in Switzerland. Univariate and multivariate linear regressions were calculated to identify variables associated with health literacy. A multiple imputation approach was used to deal with missing values. Participants Multimorbid patients recruited in primary care settings (n=888), above 18 years old and suffering from at least 3 of 75 chronic conditions on a predefined list based on the International Classification of Primary Care 2. Main measures Health literacy was assessed using the European Health Literacy Survey project questionnaire (HLS-EU 6). This comprises six items scored from 1 to 4 (very difficult=1, fairly difficult=2, fairly easy=3, very easy=4), and the total health literacy score is computed as their mean. As we wished to understand the determinants associated with lower health literacy, the HLS-EU 6 score was the only dependent variable; all other covariates were considered independent. Results The mean health literacy score (SD) was 2.9 (0.5). Multivariate analyses found significant associations between low health literacy scores and treatment burden scores (β=−0.004, 95% CI −0.006 to 0.002); marital status, predominantly the divorced group (β=0.136, 95% CI 0.012 to 0.260); dimensions of the EuroQuol 5 Dimension 3 Level (EQ5D3L) quality of life assessment, that is, for moderate problems with mobility (β=−0.086, 95% CI −0.157 to 0.016); and with moderate problems (β=−0.129, 95% CI −0.198 to 0.060) and severe problems with anxiety/depression (β=−0.343, 95% CI −0.500 to 0.186). Conclusions Multimorbid patients with a high treatment burden, altered quality of life by problems with mobility, anxiety or depression, often also have low levels of health literacy. Primary care practitioners should therefore pay particular attention to these patients in their daily practice.


BMC Family Practice | 2018

Multimorbidity: can general practitioners identify the health conditions most important to their patients? Results from a national cross-sectional study in Switzerland.

Anouk Déruaz-Luyet; Alexandra A. N’Goran; Jérôme Pasquier; Bernard Burnand; Patrick Bodenmann; Stefan Zechmann; Stefan Neuner-Jehle; Nicolas Senn; Daniel Widmer; Sven Streit; Andreas Zeller; Dagmar M. Haller; Lilli Herzig

BackgroundFaced with patients suffering from more than one chronic condition, or multimorbidity, general practitioners (GPs) must establish diagnostic and treatment priorities. Patients also set their own priorities to handle the everyday burdens associated with their multimorbidity and these may be different from the priorities established by their GP. A shared patient–GP agenda, driven by knowledge of each other’s priorities, would seem central to managing patients with multimorbidity. We evaluated GPs’ ability to identify the health condition most important to their patients.MethodsData on 888 patients were collected as part of a cross-sectional Swiss study on multimorbidity in family medicine. For the main analyses on patients-GP agreement, data from 572 of these patients could be included. GPs were asked to identify the two conditions which their patient considered most important, and we tested whether either of them agreed with the condition mentioned as most important by the patient. In the main analysis, we studied the agreement rate between GPs and patients by grouping items medically-related into 46 groups of conditions. Socio-demographic and clinical variables were fitted into univariate and multivariate models.ResultsIn 54.9% of cases, GPs were able to identify the health condition most important to the patient. In the multivariate model, the only variable significantly associated with patient–GP agreement was the number of chronic conditions: the higher the number of conditions, the less likely the agreement.ConclusionGPs were able to correctly identify the health condition most important to their patients in half of the cases. It therefore seems important that GPs learn how to better adapt treatment targets and priorities by taking patients’ perspectives into account.

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