{"id":36788,"date":"2026-04-20T13:26:56","date_gmt":"2026-04-20T11:26:56","guid":{"rendered":"https:\/\/opra.info\/?p=36788"},"modified":"2026-04-20T13:26:56","modified_gmt":"2026-04-20T11:26:56","slug":"relacion-entre-numero-de-accidentes-y-numero-de-muertes-i","status":"publish","type":"post","link":"https:\/\/emaginarte.info\/opra2\/2026\/04\/20\/relacion-entre-numero-de-accidentes-y-numero-de-muertes-i\/","title":{"rendered":"Relaci\u00f3n entre n\u00famero de accidentes y n\u00famero de muertes (I)"},"content":{"rendered":"<p><strong><span style=\"font-size: 14pt;\">Uno de los problemas a los que nos enfrentamos desde el punto de vista epistemol\u00f3gico de la accidentolog\u00eda es que no conocemos cu\u00e1l es el n\u00famero de accidentes que se producen.<\/span><\/strong><\/p>\n<p><strong>Autor:<\/strong>\u00a0<em>Javier Larrea. Presidente del Observatorio de Prevenci\u00f3n de Riesgos y Accidentes<\/em><br \/><strong>Publicaci\u00f3n:<\/strong>\u00a0<em>Web OPRA www.opra.info \u2022 20 de abril de 2026<\/em><\/p>\n<p>Por lo tanto, resulta dif\u00edcil obtener tasas, \u00edndices e indicadores para los distintos tipos de accidente, tipo de actividad, tipos de v\u00edctimas, espacios geogr\u00e1ficos o poblaci\u00f3n afectada, como universo estad\u00edstico o como muestra.<\/p>\n<p><strong>La pir\u00e1mide de Heinrich<\/strong><\/p>\n<p style=\"text-align: left;\">En el a\u00f1o 1931, hace casi cien a\u00f1os, <strong>Herbert William Heinrich<\/strong>, bas\u00e1ndose en un estudio de los datos de miles de lesiones y accidentes de trabajo de la compa\u00f1\u00eda de seguros para la que trabajaba public\u00f3 su primer libro \u201cIndustrial Accident Prevention: A Scientific Approach\u201d, en el que desarroll\u00f3 la conocida como Ley de Heinrich en la que relacionaba el n\u00famero de lesiones y accidentes graves con el n\u00famero de lesiones leves y con el n\u00famero de accidentes que no ocasionaban lesiones.<\/p>\n<p style=\"text-align: left;\">Fue un trabajo pionero sobre la ocurrencia de accidentes mortales, con lesiones y sin lesiones y represent\u00e1ndose la relaci\u00f3n entre los distintos tipos de accidentes en unas figuras de tipo triangular denominadas pir\u00e1mide de Heinrich.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-36789 aligncenter\" src=\"https:\/\/opra.info\/wp-content\/uploads\/Piramide-Heinrich_original.jpg\" alt=\"\" width=\"357\" height=\"334\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Original de la Pir\u00e1mide de Heinrich en 1941<\/strong>.<\/p>\n<p style=\"text-align: left;\">El investigador norteamericano Heinrich precursor en la investigaci\u00f3n de accidentes de trabajo desarroll\u00f3 por primera vez la teor\u00eda de la proporcionalidad de los accidentes graves en funci\u00f3n del n\u00famero de incidentes, o accidentes leves, o menores que han ocurrido. Fruto de este an\u00e1lisis de los accidentes laborales represent\u00f3 sus resultados gr\u00e1ficamente en una imagen conocida como el tri\u00e1ngulo o pir\u00e1mide de Heinrich como muestra el gr\u00e1fico siguiente:<\/p>\n<p style=\"text-align: center;\">\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-36790 aligncenter\" src=\"https:\/\/opra.info\/wp-content\/uploads\/Piramide-de-Heinrch-1024x781.jpg\" alt=\"\" width=\"464\" height=\"354\" \/><strong>Pir\u00e1mide de Heinrich (Elaboraci\u00f3n propia).<\/strong><\/p>\n<p>Seg\u00fan su teor\u00eda, por cada accidente mortal o muy grave habr\u00edan ocurrido 29 accidentes con baja o con alguna lesi\u00f3n y se habr\u00edan producido 300 accidentes sin lesiones. Con este m\u00e9todo se pod\u00eda realizar una aproximaci\u00f3n deductiva inversa para conocer el n\u00famero de accidentes partiendo del dato del n\u00famero de accidentes mortales.<\/p>\n<blockquote>\n<p><span style=\"color: #ff0000;\"><strong>\u00bfSabes cu\u00e1l es la relaci\u00f3n entre accidentes muy graves, graves y leves en tu actvidad?\u00a0<\/strong><\/span><\/p>\n<\/blockquote>\n<p><strong>Otras investigaciones<\/strong><\/p>\n<p>D\u00e9cadas despu\u00e9s, otro investigador, tambi\u00e9n estadounidense, Frank E. Bird, elabor\u00f3 una nueva teor\u00eda m\u00e1s completa actualizando la de Heinrich que comentar\u00e9 en el siguiente art\u00edculo. Y tambi\u00e9n analizar\u00e9 la vigencia del resultado de sus estudios en el siglo XXI.<\/p>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"572\" src=\"https:\/\/opra.info\/wp-content\/uploads\/Piramide-Heinrich-IA-1024x572.png\" alt=\"\" class=\"wp-image-36801\" style=\"width:700px\"\/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>Art\u00edculo relacionado:\u00a0<a href=\"https:\/\/opra.info\/relacion-entre-numero-de-accidentes-y-numero-de-muertes-ii\/\" target=\"_blank\" rel=\"noreferrer noopener\">Relaci\u00f3n entre n\u00famero de accidentes y n\u00famero de muertes (II)<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Art\u00edculo relacionado: <a href=\"https:\/\/opra.info\/suben-las-muertes-por-accidente-estadisticas-de-2024\/\" target=\"_blank\" rel=\"noreferrer noopener\">Suben las muertes por accidente. Estad\u00edsticas de 2024<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Art\u00edculo relacionado: <a href=\"https:\/\/opra.info\/aumentan-los-accidentes-de-trabajo-mortales-en-espana\/\" target=\"_blank\" rel=\"noreferrer noopener\">Aumentan los accidentes de trabajo mortales en Espa\u00f1a [28\/04\/2025]<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Uno de los problemas a los que nos enfrentamos desde el punto de vista epistemol\u00f3gico de la accidentolog\u00eda es que no conocemos cu\u00e1l es el n\u00famero de accidentes que se producen.<\/p>\n","protected":false},"author":2,"featured_media":36805,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[],"class_list":["post-36788","post","type-post","status-publish","format-standard","has-post-thumbnail","category-articulos"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Relaci\u00f3n entre n\u00famero de accidentes y n\u00famero de muertes (I) - OPRA<\/title>\n<meta name=\"description\" content=\"Relaci\u00f3n entre n\u00famero de accidentes y n\u00famero de muertes (I). 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