{"id":6566,"date":"2026-10-13T23:19:33","date_gmt":"2026-10-13T16:19:33","guid":{"rendered":"https:\/\/dykhoa.com\/blog\/?post_type=thuat_ngu&#038;p=6566"},"modified":"2026-10-13T23:19:33","modified_gmt":"2026-10-13T16:19:33","slug":"thap-bang-chung-hierarchy-of-evidence","status":"publish","type":"thuat_ngu","link":"https:\/\/dykhoa.com\/blog\/thuat-ngu\/thap-bang-chung-hierarchy-of-evidence\/","title":{"rendered":"Th\u00e1p b\u1eb1ng ch\u1ee9ng (hierarchy of evidence) l\u00e0 g\u00ec?"},"content":{"rendered":"<p>Th\u00e1p b\u1eb1ng ch\u1ee9ng (hierarchy of evidence) l\u00e0 c\u00f4ng c\u1ee5 x\u1ebfp c\u00e1c thi\u1ebft k\u1ebf nghi\u00ean c\u1ee9u theo kh\u1ea3 n\u0103ng cho c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00e1ng tin. Trung t\u00e2m Y h\u1ecdc Th\u1ef1c ch\u1ee9ng Oxford (CEBM) m\u00f4 t\u1ea3 h\u1ec7 th\u1ed1ng c\u1ea5p \u0111\u1ed9 b\u1eb1ng ch\u1ee9ng c\u1ee7a m\u00ecnh l\u00e0 th\u1ee9 b\u1eadc c\u1ee7a &#8220;b\u1eb1ng ch\u1ee9ng t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3 c\u00f3&#8221;, m\u1ed9t l\u1ed1i t\u1eaft gi\u00fap ng\u01b0\u1eddi t\u00ecm ki\u1ebfm b\u1eaft \u0111\u1ea7u t\u1eeb lo\u1ea1i nghi\u00ean c\u1ee9u x\u1ebfp cao nh\u1ea5t (Howick v\u00e0 cs., 2011).<\/p>\n<h2>Th\u00e1p b\u1eb1ng ch\u1ee9ng g\u1ed3m nh\u1eefng t\u1ea7ng n\u00e0o?<\/h2>\n<p>V\u1edbi c\u00e2u h\u1ecfi v\u1ec1 l\u1ee3i \u00edch c\u1ee7a m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tr\u1ecb, CEBM cho r\u1eb1ng t\u1ed5ng quan h\u1ec7 th\u1ed1ng c\u00e1c th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 cho c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00e1ng tin nh\u1ea5t. Th\u1ee9 t\u1ef1 g\u1ee3i \u00fd t\u1eeb tr\u00ean xu\u1ed1ng l\u00e0 (Howick v\u00e0 cs., 2011):<\/p>\n<ul>\n<li><strong>T\u1ed5ng quan h\u1ec7 th\u1ed1ng<\/strong><\/li>\n<li><strong>Th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean c\u00f3 \u0111\u1ed1i ch\u1ee9ng<\/strong><\/li>\n<li><strong>Nghi\u00ean c\u1ee9u \u0111o\u00e0n h\u1ec7<\/strong><\/li>\n<li><strong>Lo\u1ea1t ca b\u1ec7nh<\/strong><\/li>\n<li><strong>L\u1eadp lu\u1eadn d\u1ef1a tr\u00ean c\u01a1 ch\u1ebf<\/strong><\/li>\n<\/ul>\n<p>C\u00e1ch \u0111\u1ecdc th\u00e1p n\u00e0y khi g\u1eb7p m\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y trong b\u00e0i <a href=\"https:\/\/dykhoa.com\/blog\/mot-nghien-cuu-moi-co-du-de-ket-luan\/\">m\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi c\u00f3 \u0111\u1ee7 \u0111\u1ec3 k\u1ebft lu\u1eadn \u0111i\u1ec1u g\u00ec \u0111\u00fang<\/a>.<\/p>\n<h2>Th\u00e1p b\u1eb1ng ch\u1ee9ng c\u00f3 gi\u1edbi h\u1ea1n g\u00ec?<\/h2>\n<p>Ch\u00ednh CEBM nh\u1ea5n m\u1ea1nh h\u1ec7 th\u1ed1ng c\u1ea5p \u0111\u1ed9 n\u00e0y kh\u00f4ng nh\u1eb1m \u0111\u01b0a ra ph\u00e1n x\u00e9t cu\u1ed1i c\u00f9ng v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng b\u1eb1ng ch\u1ee9ng. S\u1ebd c\u00f3 tr\u01b0\u1eddng h\u1ee3p b\u1eb1ng ch\u1ee9ng &#8220;c\u1ea5p th\u1ea5p&#8221;, ch\u1eb3ng h\u1ea1n m\u1ed9t nghi\u00ean c\u1ee9u quan s\u00e1t cho hi\u1ec7u qu\u1ea3 r\u1ea5t l\u1edbn, m\u1ea1nh h\u01a1n b\u1eb1ng ch\u1ee9ng &#8220;c\u1ea5p cao&#8221; nh\u01b0 m\u1ed9t t\u1ed5ng quan h\u1ec7 th\u1ed1ng ch\u1ec9 g\u1ed3m v\u00e0i nghi\u00ean c\u1ee9u v\u1edbi k\u1ebft qu\u1ea3 ch\u01b0a r\u00f5 r\u00e0ng (Howick v\u00e0 cs., 2011).<\/p>\n<p>H\u1ec7 th\u1ed1ng GRADE x\u1eed l\u00fd gi\u1edbi h\u1ea1n n\u00e0y b\u1eb1ng c\u00e1ch cho thi\u1ebft k\u1ebf nghi\u00ean c\u1ee9u ch\u1ec9 l\u00e0 \u0111i\u1ec3m xu\u1ea5t ph\u00e1t: b\u1eb1ng ch\u1ee9ng t\u1eeb th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean kh\u1edfi \u0111\u1ea7u \u1edf m\u1ee9c cao, nghi\u00ean c\u1ee9u quan s\u00e1t kh\u1edfi \u0111\u1ea7u \u1edf m\u1ee9c th\u1ea5p, sau \u0111\u00f3 c\u00f3 th\u1ec3 b\u1ecb h\u1ea1 ho\u1eb7c n\u00e2ng m\u1ee9c, v\u00ed d\u1ee5 n\u00e2ng khi hi\u1ec7u qu\u1ea3 r\u1ea5t l\u1edbn ho\u1eb7c c\u00f3 quan h\u1ec7 li\u1ec1u v\u00e0 \u0111\u00e1p \u1ee9ng (Guyatt v\u00e0 cs., 2008).<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>Th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean l\u00fac n\u00e0o c\u0169ng t\u1ed1t h\u01a1n nghi\u00ean c\u1ee9u quan s\u00e1t?<\/h3>\n<p>Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o. M\u1ed9t th\u1eed nghi\u1ec7m ng\u1eabu nhi\u00ean c\u00f3 nhi\u1ec1u h\u1ea1n ch\u1ebf c\u00f3 th\u1ec3 b\u1ecb h\u1ea1 m\u1ee9c, c\u00f2n nghi\u00ean c\u1ee9u quan s\u00e1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u00e2ng m\u1ee9c trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh (Guyatt v\u00e0 cs., 2008).<\/p>\n<h3>\u00dd ki\u1ebfn chuy\u00ean gia n\u1eb1m \u1edf \u0111\u00e2u trong th\u00e1p?<\/h3>\n<p>Nh\u00f3m GRADE cho r\u1eb1ng vi\u1ec7c x\u1ebfp &#8220;\u00fd ki\u1ebfn chuy\u00ean gia&#8221; th\u00e0nh m\u1ed9t lo\u1ea1i b\u1eb1ng ch\u1ee9ng d\u1ec5 g\u00e2y nh\u1ea7m l\u1eabn (Guyatt v\u00e0 cs., 2008). Xem th\u00eam b\u00e0i <a href=\"https:\/\/dykhoa.com\/blog\/thong-tin-khoa-hoc-tren-mang-co-dang-tin\/\">l\u00e0m sao bi\u1ebft th\u00f4ng tin khoa h\u1ecdc tr\u00ean m\u1ea1ng c\u00f3 \u0111\u00e1ng tin<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Th\u00e1p b\u1eb1ng ch\u1ee9ng (hierarchy of evidence) l\u00e0 g\u00ec? Th\u1ee9 b\u1eadc c\u00e1c lo\u1ea1i nghi\u00ean c\u1ee9u theo CEBM Oxford, gi\u1edbi h\u1ea1n c\u1ee7a th\u00e1p v\u00e0 v\u00ec sao GRADE cho n\u00e2ng, h\u1ea1 m\u1ee9c.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","nhom_thuat_ngu":[476],"class_list":["post-6566","thuat_ngu","type-thuat_ngu","status-publish","hentry","nhom_thuat_ngu-nghien-cuu-bang-chung"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Th\u00e1p b\u1eb1ng ch\u1ee9ng (hierarchy of evidence) l\u00e0 g\u00ec? - Dy Khoa Blog<\/title>\n<meta name=\"description\" content=\"Th\u00e1p b\u1eb1ng ch\u1ee9ng (hierarchy of evidence) l\u00e0 g\u00ec? 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