{"id":68940,"date":"2024-06-13T09:25:51","date_gmt":"2024-06-13T14:25:51","guid":{"rendered":"https:\/\/www.partnershipagainstcancer.ca\/topics\/breast-indicators-2018-2021\/indicators\/positive-predictive-value\/"},"modified":"2024-06-13T11:50:43","modified_gmt":"2024-06-13T16:50:43","slug":"positive-predictive-value","status":"publish","type":"topics","link":"https:\/\/www.partnershipagainstcancer.ca\/fr\/topics\/breast-indicators-2018-2021\/indicators\/positive-predictive-value\/","title":{"rendered":"Valeur pr\u00e9dictive positive"},"content":{"rendered":"<p><strong>Pourquoi est-ce important? <\/strong>Il s\u2019agit d\u2019un indicateur de la validit\u00e9 pr\u00e9dictive du d\u00e9pistage. La pr\u00e9valence de la maladie dans la population cible se r\u00e9percute sur la valeur pr\u00e9dictive positive d\u2019un examen de d\u00e9pistage de cette maladie. Un examen de d\u00e9pistage ayant une valeur pr\u00e9dictive positive \u00e9lev\u00e9e minimisera les proc\u00e9dures de suivi inutiles, puisqu\u2019il aura de fortes chances de d\u00e9tecter v\u00e9ritablement la maladie.<\/p>\n<p><strong>D\u00e9finition de l\u2019indicateur\u00a0<\/strong>: Pourcentage des d\u00e9pistages anormaux ayant donn\u00e9 lieu \u00e0 un diagnostic de cancer du sein (infiltrant ou in\u202fsitu) apr\u00e8s un bilan diagnostique<\/p>\n<p><strong>Cible\u00a0<\/strong>:<\/p>\n<ul>\n<li>D\u00e9pistages initiaux\u00a0: \u2265\u00a05\u00a0%<\/li>\n<li>D\u00e9pistages subs\u00e9quents\u00a0: \u2265\u00a06\u00a0%<\/li>\n<li style=\"list-style-type: none;\"><\/li>\n<\/ul>\n<p><strong>P\u00e9riode de mesure\u00a0<\/strong>:<\/p>\n<ul>\n<li>1<sup>er <\/sup>janvier\u00a02019 au\u00a031\u00a0d\u00e9cembre\u00a02019<\/li>\n<li>1<sup>er <\/sup>janvier\u00a02020 au\u00a031\u00a0d\u00e9cembre\u00a02020<\/li>\n<\/ul>\n<p><strong>Calcul de l\u2019indicateur\u00a0<\/strong>:<\/p>\n<ul>\n<li>Num\u00e9rateur\u202f: Nombre de d\u00e9pistages anormaux pour lesquels un cancer du sein (CCIS ou infiltrant) a \u00e9t\u00e9 diagnostiqu\u00e9 dans les \u202f6\u202fmois suivant le d\u00e9pistage<\/li>\n<li>D\u00e9nominateur\u202f: Nombre total de mammographies de d\u00e9pistage anormales au cours de la p\u00e9riode de mesure\n<ul>\n<li>Exclusions\u202f: Personnes ayant obtenu un r\u00e9sultat anormal de d\u00e9pistage du cancer du sein qui ont \u00e9t\u00e9 perdues de vue pour le suivi dans les\u202f 6\u202fmois apr\u00e8s le d\u00e9pistage<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Autres consid\u00e9rations<\/strong>\u00a0: Bien que cet indicateur soit utile pour fournir des renseignements sur le rendement du programme de d\u00e9pistage, il doit \u00eatre interpr\u00e9t\u00e9 dans le contexte d\u2019autres facteurs tels que le <a href=\"https:\/\/www.partnershipagainstcancer.ca\/fr\/topics\/breast-indicators-2018-2021\/indicators\/cancer-detection-rate\/\">taux de d\u00e9tection de cancers<\/a> et le <a href=\"https:\/\/www.partnershipagainstcancer.ca\/fr\/topics\/breast-indicators-2018-2021\/indicators\/abnormal-call-rate\/\">taux de rappel pour anomalie<\/a>.<br \/>\n<a name=\"ppv-overall\"><\/a><\/p>\n<h3>Pourcentage de personnes (\u00e2g\u00e9es de\u202f50 \u00e0\u202f74\u202fans) ayant pass\u00e9 une mammographie avec un r\u00e9sultat anormal et ayant re\u00e7u un diagnostic de cancer du sein, par territoire de comp\u00e9tence\u202f\u2013\u202f2019 et 2020<\/h3>\n<p><link rel='stylesheet' href='https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/4.7.0\/css\/font-awesome.min.css'><link rel='stylesheet' href='https:\/\/www.partnershipagainstcancer.ca\/wp-content\/plugins\/cpac-toolbox\/cpac-toolbox.css?v2'><script type='text\/javascript' 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display: block;\" href=\"https:\/\/www.partnershipagainstcancer.ca\/fr\/data-tables-breast-indicators\/#ppv-overall\"><sub>Tableaux de donn\u00e9es et notes de bas de page<\/sub><\/a><\/p>\n<p>La valeur pr\u00e9dictive positive (VPP) dans chaque territoire de comp\u00e9tence est rest\u00e9e relativement constante en 2019 et en 2020. Elle a vari\u00e9 entre 4,8\u00a0% et 13,4\u00a0%, en 2019, et entre 5,8\u00a0% et 11,8\u00a0% en 2020.<\/p>\n<p><a name=\"ppv-age-group\"><\/a><\/p>\n<h3>Pourcentage de personnes (\u00e2g\u00e9es de\u202f50\u00a0\u00e0\u00a074\u00a0ans) ayant pass\u00e9 une mammographie avec un r\u00e9sultat anormal et ayant re\u00e7u un diagnostic de cancer du sein, par territoire de comp\u00e9tence et par groupe d\u2019\u00e2ge\u202f\u2013\u202f2019 et 2020<\/h3>\n<p><link rel='stylesheet' href='https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/4.7.0\/css\/font-awesome.min.css'><link rel='stylesheet' href='https:\/\/www.partnershipagainstcancer.ca\/wp-content\/plugins\/cpac-toolbox\/cpac-toolbox.css?v2'><script type='text\/javascript' src='https:\/\/www.partnershipagainstcancer.ca\/wp-content\/plugins\/cpac-toolbox\/cpac-toolbox.js?v2'><\/script><style>\niframe.cpac-dashboard { .statusBar{display:none;}\r\npbi-status-bar{opacity:0.1;background: white;height: 0;}\r\n.backgroundContainer.outspaceContainer{background:#fff!important;} }\n<\/style><div class='cpac-dashboard-container'><iframe allowfullscreen='allowfullscreen' title='cpac-dashboard-eyJrIjoiN2I2ODdlNDgtN2QzOC00MzcyLWFlNTYtZjFjMDJlMDdiODk2IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_682' id='dashboard-eyJrIjoiN2I2ODdlNDgtN2QzOC00MzcyLWFlNTYtZjFjMDJlMDdiODk2IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_682' src='https:\/\/dashboard.cpacc.ca\/report\/eyJrIjoiN2I2ODdlNDgtN2QzOC00MzcyLWFlNTYtZjFjMDJlMDdiODk2IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9&language=fr-CA' class='cpac-dashboard'  style='width:100%'><\/iframe><\/div><script>\n                    var is_fullreport = 0;\n                    var scrolled = false;\n                    window.addEventListener('message', function(e){\n                            var this_frame = document.getElementById('dashboard-eyJrIjoiN2I2ODdlNDgtN2QzOC00MzcyLWFlNTYtZjFjMDJlMDdiODk2IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_682');\n\n\t\t\t            \/\/ Extract token from parent src\n    \t\t\t        var parentToken = this_frame.src.split('\/').pop();\n\t\t\t\tparentToken = parentToken.split('&')[0];\n\n\/\/                            console.log(JSON.stringify(e.data));\n                    \tif (e.data && e.data.hasOwnProperty('cpac_height') && \n                            e.data.hasOwnProperty('iframe_token') && \n                            e.data.iframe_token === parentToken && \n                            e.origin == 'https:\/\/dashboard.cpacc.ca') { \n                            \n                            console.log('cpac-dashboard: resizing iframe height to ' + e.data.cpac_height + ' for id=dashboard-eyJrIjoiN2I2ODdlNDgtN2QzOC00MzcyLWFlNTYtZjFjMDJlMDdiODk2IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_682[' + e.origin + ']' );\n\/\/                                this_frame.height = e.data.cpac_height + 'px';\n                            \n                            if(is_fullreport){\n                                this_frame.style.height = e.data.cpac_height + 'px';\n                            }else if(e.data.cpac_height>200 && e.data.cpac_height<1000){\n                                \/\/ if height = 401px then style.height = 410px\n                                \/\/ if height = 373px then style.height = 380px\n                                \/\/ if height = 350px then style.height = 350px\n                                const cpac_height = (parseInt(e.data.cpac_height\/10)+((e.data.cpac_height%10>0)?1:0))*10;\n                                this_frame.style.height = cpac_height + 'px';\n                            }else{\n                                this_frame.style.height = '500px';\n                            }\n                        }\n\n                            if (e.data && e.data.hasOwnProperty('target_element_y') && e.origin == 'https:\/\/dashboard.cpacc.ca' && !scrolled) {\n                                console.log('received element >>>'+e.data.target_element_y);\n                                let targetYFromDoc = 0;\n                                let element = document.getElementById('dashboard-eyJrIjoiN2I2ODdlNDgtN2QzOC00MzcyLWFlNTYtZjFjMDJlMDdiODk2IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_682');\n                                while(element){\n                                    targetYFromDoc += parseInt(element.offsetTop - 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En\u202f2020, la VPP dans le groupe d\u2019\u00e2ge le plus jeune (50\u00a0\u00e0\u00a059\u00a0ans) et le groupe d\u2019\u00e2ge le plus \u00e2g\u00e9 (70\u00a0\u00e0\u00a074\u00a0ans) variait respectivement de\u202f4,2\u00a0% \u00e0\u202f7,4\u00a0% et de\u202f8,6\u00a0% \u00e0\u202f22,2\u00a0%. L\u2019augmentation de la VPP avec l\u2019\u00e2ge pourrait \u00eatre due \u00e0 plusieurs facteurs comme l\u2019augmentation de l\u2019incidence avec l\u2019\u00e2ge, l\u2019augmentation des ant\u00e9c\u00e9dents de d\u00e9pistage dans les cohortes de population plus \u00e2g\u00e9es et l\u2019am\u00e9lioration de la capacit\u00e9 d\u2019interpr\u00e9tation du fait de la moindre densit\u00e9 mammaire des femmes plus \u00e2g\u00e9es.<\/p>\n<p><a name=\"ppv-sequence\"><\/a><\/p>\n<h3>Pourcentage de personnes (\u00e2g\u00e9es de 50 \u00e0 74\u00a0ans) ayant pass\u00e9 une mammographie avec un r\u00e9sultat anormal et ayant re\u00e7u un diagnostic de cancer du sein, par territoire de comp\u00e9tence et par s\u00e9quence de d\u00e9pistage \u2013 2019 et 2020<\/h3>\n<p><link rel='stylesheet' href='https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/4.7.0\/css\/font-awesome.min.css'><link rel='stylesheet' href='https:\/\/www.partnershipagainstcancer.ca\/wp-content\/plugins\/cpac-toolbox\/cpac-toolbox.css?v2'><script type='text\/javascript' src='https:\/\/www.partnershipagainstcancer.ca\/wp-content\/plugins\/cpac-toolbox\/cpac-toolbox.js?v2'><\/script><style>\niframe.cpac-dashboard { .statusBar{display:none;}\r\npbi-status-bar{opacity:0.1;background: white;height: 0;}\r\n.backgroundContainer.outspaceContainer{background:#fff!important;} }\n<\/style><div class='cpac-dashboard-container'><iframe allowfullscreen='allowfullscreen' title='cpac-dashboard-eyJrIjoiMmYwOGMzN2QtYmQ5MC00MjM3LTllN2YtNDY4ZmE1NDQxYTA3IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_480' id='dashboard-eyJrIjoiMmYwOGMzN2QtYmQ5MC00MjM3LTllN2YtNDY4ZmE1NDQxYTA3IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_480' src='https:\/\/dashboard.cpacc.ca\/report\/eyJrIjoiMmYwOGMzN2QtYmQ5MC00MjM3LTllN2YtNDY4ZmE1NDQxYTA3IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9&language=fr-CA' class='cpac-dashboard'  style='width:100%'><\/iframe><\/div><script>\n                    var is_fullreport = 0;\n                    var scrolled = false;\n                    window.addEventListener('message', function(e){\n                            var this_frame = document.getElementById('dashboard-eyJrIjoiMmYwOGMzN2QtYmQ5MC00MjM3LTllN2YtNDY4ZmE1NDQxYTA3IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_480');\n\n\t\t\t            \/\/ Extract token from parent src\n    \t\t\t        var parentToken = this_frame.src.split('\/').pop();\n\t\t\t\tparentToken = parentToken.split('&')[0];\n\n\/\/                            console.log(JSON.stringify(e.data));\n                    \tif (e.data && e.data.hasOwnProperty('cpac_height') && \n                            e.data.hasOwnProperty('iframe_token') && \n                            e.data.iframe_token === parentToken && \n                            e.origin == 'https:\/\/dashboard.cpacc.ca') { \n                            \n                            console.log('cpac-dashboard: resizing iframe height to ' + e.data.cpac_height + ' for id=dashboard-eyJrIjoiMmYwOGMzN2QtYmQ5MC00MjM3LTllN2YtNDY4ZmE1NDQxYTA3IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_480[' + e.origin + ']' );\n\/\/                                this_frame.height = e.data.cpac_height + 'px';\n                            \n                            if(is_fullreport){\n                                this_frame.style.height = e.data.cpac_height + 'px';\n                            }else if(e.data.cpac_height>200 && e.data.cpac_height<1000){\n                                \/\/ if height = 401px then style.height = 410px\n                                \/\/ if height = 373px then style.height = 380px\n                                \/\/ if height = 350px then style.height = 350px\n                                const cpac_height = (parseInt(e.data.cpac_height\/10)+((e.data.cpac_height%10>0)?1:0))*10;\n                                this_frame.style.height = cpac_height + 'px';\n                            }else{\n                                this_frame.style.height = '500px';\n                            }\n                        }\n\n                            if (e.data && e.data.hasOwnProperty('target_element_y') && e.origin == 'https:\/\/dashboard.cpacc.ca' && !scrolled) {\n                                console.log('received element >>>'+e.data.target_element_y);\n                                let targetYFromDoc = 0;\n                                let element = document.getElementById('dashboard-eyJrIjoiMmYwOGMzN2QtYmQ5MC00MjM3LTllN2YtNDY4ZmE1NDQxYTA3IiwidCI6ImQxODkwM2ZiLTk2OTMtNDMyZC1iMDA0LTI3M2I3MDE1NDQ5MCJ9_480');\n                                while(element){\n                                    targetYFromDoc += parseInt(element.offsetTop - 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Dans la plupart des territoires de comp\u00e9tence, la VPP des d\u00e9pistages subs\u00e9quents \u00e9tait sup\u00e9rieure \u00e0 celle du d\u00e9pistage initial. Cela est peut-\u00eatre d\u00fb au fait que les d\u00e9pistages ant\u00e9rieurs peuvent permettre d\u2019\u00e9tablir une base de comparaison pour les d\u00e9pistages subs\u00e9quents, entra\u00eenant moins de rappels pour anomalie constituant des faux positifs. En 2019 et en 2020, la plupart des territoires de comp\u00e9tence ont atteint la cible canadienne (\u2265 6\u00a0%) pour les d\u00e9pistages subs\u00e9quents.<\/p>\n<div style=\"height: 40px; width: 100%;\"><\/div>\n<style>.cpac-dashboard-container {margin-bottom: -60px;}<\/style>\n","protected":false},"excerpt":{"rendered":"<p>Pourquoi est-ce important? Il s\u2019agit d\u2019un indicateur de la validit\u00e9 pr\u00e9dictive du d\u00e9pistage. 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