[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100365618":3},{"organization":4,"outcomesModule":7,"designInfo":50,"detailedDescription":53,"studyPopulation":54,"armGroups":55,"interventions":61,"overallOfficials":66,"centralContacts":70,"locations":76,"responsibleParty":94,"collaborators":96,"id":102,"slug":49,"hasResults":103,"nctId":104,"briefTitle":105,"officialTitle":105,"acronym":106,"eligibilityCriteria":107,"healthyVolunteers":108,"sex":109,"minAge":110,"maxAge":49,"enrollmentInfo":111,"targetDuration":49,"studyType":114,"phases":49,"briefSummary":115,"conditions":116,"keywords":118,"overallStatus":79,"whyStopped":49,"lastUpdateSubmitDate":121,"lastUpdatePostDateStruct":122,"startDateStruct":125,"completionDateStruct":127,"leadSponsor":129,"locationsCount":130},{"fullName":5,"class":6},"University Hospital, Clermont-Ferrand","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":15,"otherOutcomes":49},[9,13],{"measure":10,"description":11,"timeFrame":12},"Visual analog scale to assess the perceived stress","Visual analog scale to assess the perceived stress on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100)","day 0",{"measure":10,"description":11,"timeFrame":14},"day 7",[16,20,23,26,29,32,35,38,41,44,46],{"measure":17,"description":18,"timeFrame":19},"Visual analog scale to assess anxiety","Visual analog scale to assess anxiety on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100)","day 0, day 7",{"measure":21,"description":22,"timeFrame":19},"Visual analog scale to assess sleep quality","Visual analog scale to assess sleep quality on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100)",{"measure":24,"description":25,"timeFrame":19},"Visual analog scale to assess fatigue","Visual analog scale to assess fatigue on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100)",{"measure":27,"description":28,"timeFrame":19},"Job Demand-Control-Support (JDSC) questionnaire of Karasek","The Job Demand-Control-Support (JDSC) questionnaire of Karasek assessed job demands, job control and social support through 26 items.",{"measure":30,"description":31,"timeFrame":19},"The Effort-Reward Imbalance Questionnaire (ERI)","The Effort-Reward Imbalance Questionnaire (ERI) is a self-administrated test assessing psychological distress and health problems that may occur when there is an imbalance between the efforts required by the work and the rewards received.",{"measure":33,"description":34,"timeFrame":19},"The Work Addiction Risk Test (WART)","The Work Addiction Risk Test (WART) was developed by Robinson et al. from symptoms reported by clinicians caring for patients with work addiction",{"measure":36,"description":37,"timeFrame":19},"Hospital Anxiety and Depression (HAD) Scale","Hospital Anxiety and Depression (HAD) Scale is a self-reported questionnaire composed of 14 items with a 4-point Likert scale assessing anxiety (7 items) and\u002For depressive (7 items) symptoms",{"measure":39,"description":40,"timeFrame":19},"The Maslach Burn-out Inventory (MBI)","The Maslach Burn-out Inventory (MBI) is composed of 22 items designed to assess the three components of the burn-out syndrome: emotional exhaustion (9 items), depersonalization (5 items) and reduced personal accomplishment (8 items)",{"measure":42,"description":43,"timeFrame":19},"Heart rate variability","Heart rate variability and skin conductance will be measured with the use of the wristband Empatica E4, Italy",{"measure":45,"description":43,"timeFrame":19},": skin conductance",{"measure":47,"description":48,"timeFrame":19},"Salivary DHEAS","Salivary DHEAS is a biomarker of chronic stress, with a long half-life of 16 hours",null,{"allocation":49,"interventionModel":49,"interventionModelDescription":49,"primaryPurpose":49,"observationalModel":51,"timePerspective":52,"maskingInfo":49},"COHORT","CROSS_SECTIONAL","Visual analog scales (VAS) are one of the most common tools used in questionnaires. VAS are validated for pain and stress for example on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100). Nowadays, most VAS are used on questionnaires on internet. However, the influence of screen sizes on responses to visual analog scales were never studied.\n\nPrimary objective is to study the influence of screen sizes on response responses to visual analog scales.\n\nSecondary objectives are to assess:\n\n* the variability of responses depending on screen sizes within a week\n* the influence of perception of work and addiction to work on the variability depending on screen sizes\n* relationships with biomarkers of stress : salivary DHEAS, heart rate variability and skin conductance\n\nAn open questionnaire will be created by the Clinical Research Direction. The questionnaire will be opened by the examinator who will fulfill the anonymized identification of participants and the type of screens. In a dedicated room at the LaPSCo, the participants will answer the same VAS on four different sizes\u002Ftypes of screens (24-inch screen, laptop, tablet, smartphone) and on paper. Saliva will be collected after answering questionnaires. Heart rate variability and skin conductance will be measured with the use of a wrist watch during 15 minutes, from the entrance in the room to the completion of questionnaires.\n\nThe participant will undergo the same examination within a week (15 minutes).","healhy volunteers",[56],{"label":57,"type":49,"description":58,"interventionNames":59},"experimental group","differences in responses to visual analog scales depending on screen sizes",[60],"Other: Influence of screen sizes on responses to visual analog scales of stress",[62],{"type":6,"name":63,"description":64,"armGroupLabels":65,"otherNames":49},"Influence of screen sizes on responses to visual analog scales of stress","An open questionnaire will be created by the Clinical Research Direction. The questionnaire will be opened by the examinator who will fulfill the anonymized identification of participants and the type of screens. In a dedicated room at the LaPSCo, the participants will answer the same VAS on four different sizes\u002Ftypes of screens (24-inch screen, laptop, tablet, smartphone) and on paper. Saliva will be collected after answering questionnaires. Heart rate variability and skin conductance will be measured with the use of a wrist watch during 15 minutes, from the entrance in the room to the completion of questionnaires.\n\nThe participant will undergo the same examination within a week (15 minutes).",[57],[67],{"name":68,"affiliation":5,"role":69},"frédéric Dutheil","PRINCIPAL_INVESTIGATOR",[71],{"name":72,"role":73,"phone":74,"phoneExt":49,"email":75},"Lise Laclautre","CONTACT","334.73.754.963","promo_interne_drci@chu-clermontferrand.fr",[77],{"facility":78,"status":79,"city":80,"state":49,"zip":81,"country":82,"countryCode":83,"cosmosGeoPoint":84,"geoPoint":89,"contacts":90},"Chu Clermont Ferrand","RECRUITING","Clermont-Ferrand","63003","France","FR",{"type":85,"coordinates":86},"Point",[87,88],3.08682,45.77969,{"lat":88,"lon":87},[91,92],{"name":72,"role":73,"phone":49,"phoneExt":49,"email":75},{"name":93,"role":69,"phone":49,"phoneExt":49,"email":49},"Frédéric DUTHEIL",{"type":95,"investigatorFullName":49,"investigatorTitle":49,"investigatorAffiliation":49,"oldNameTitle":49,"oldOrganization":49},"SPONSOR",[97,100],{"name":98,"class":99},"Institut de Médecine du Travail","UNKNOWN",{"name":101,"class":99},"UMR CNRS 6024, LaPSCo","100365618",false,"NCT04040608","Influence of Screen Sizes on Responses to Visual Analog Scales of Stress","SIVAStress","Inclusion Criteria:\n\n* Adult persons\n\nExclusion Criteria:\n\n* Refusal to participate in the study\n* Unable to answer basic questions (difficulties understanding, cognitive disorders…)",true,"ALL","18 Years",{"count":112,"type":113},200,"ESTIMATED","OBSERVATIONAL","Visual analog scales (VAS) are one of the most common tools used in questionnaires. VAS are validated for pain and stress for example on a horizontal, non-calibrated line of 100 mm, ranging from very low (0) to very high (100). Nowadays, most VAS are used on questionnaires on internet. However, the influence of screen sizes on responses to visual analog scales were never studied.",[117],"Volunteers",[119,120],"visual analog scale","stress","2026-02-11",{"date":123,"type":124},"2026-02-12","ACTUAL",{"date":126,"type":124},"2021-03-02",{"date":128,"type":113},"2028-03",{"name":5,"class":6},1]