{"id":3056,"date":"2026-10-12T08:00:00","date_gmt":"2026-10-12T01:00:00","guid":{"rendered":"https:\/\/dykhoa.com\/blog\/?post_type=thuat_ngu&p=3055"},"modified":"2026-10-12T08:00:00","modified_gmt":"2026-10-12T01:00:00","slug":"nghien-cuu-doan-he-cohort-study","status":"publish","type":"thuat_ngu","link":"https:\/\/dykhoa.com\/blog\/thuat-ngu\/nghien-cuu-doan-he-cohort-study\/","title":{"rendered":"Nghi\u00ean c\u1ee9u \u0111o\u00e0n h\u1ec7 (cohort study) l\u00e0 g\u00ec?"},"content":{"rendered":"

Nghi\u00ean c\u1ee9u \u0111o\u00e0n h\u1ec7 n\u1ed5i ti\u1ebfng Framingham Heart Study \u0111\u00e3 ph\u00e1t hi\u1ec7n ra c\u00e1c y\u1ebfu t\u1ed1 nguy c\u01a1 tim m\u1ea1ch nh\u01b0 h\u00fat thu\u1ed1c v\u00e0 huy\u1ebft \u00e1p cao (Song & Chung, 2010). Xem b\u00e0i Ki\u1ec3m tra nghi\u00ean c\u1ee9u chia s\u1ebb tr\u00ean m\u1ea1ng<\/a>.<\/p>\n

Ph\u00e2n lo\u1ea1i ti\u1ebfn c\u1ee9u v\u00e0 h\u1ed3i c\u1ee9u<\/h2>\n

– \u0110o\u00e0n h\u1ec7 ti\u1ebfn c\u1ee9u (Prospective): Theo d\u00f5i \u0111o\u00e0n h\u1ec7 t\u1eeb hi\u1ec7n t\u1ea1i \u0111i t\u1edbi t\u01b0\u01a1ng lai, d\u1eef li\u1ec7u ch\u00ednh x\u00e1c nh\u1ea5t.
– \u0110o\u00e0n h\u1ec7 h\u1ed3i c\u1ee9u (Retrospective): D\u1ef1a tr\u00ean h\u1ed3 s\u01a1 b\u1ec7nh \u00e1n trong qu\u00e1 kh\u1ee9 \u0111\u1ec3 ph\u00e2n t\u00edch k\u1ebft qu\u1ea3 hi\u1ec7n t\u1ea1i.<\/p>\n

\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/h2>\n

\u01afu \u0111i\u1ec3m l\u00e0 x\u00e1c \u0111\u1ecbnh r\u00f5 tr\u00ecnh t\u1ef1 th\u1eddi gian (ph\u01a1i nhi\u1ec5m x\u1ea3y ra tr\u01b0\u1edbc b\u1ec7nh t\u1eadt). Nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 t\u1ed1n k\u00e9m kinh ph\u00ed v\u00e0 m\u1ea5t nhi\u1ec1u n\u0103m theo d\u00f5i.<\/p>\n","protected":false},"excerpt":{"rendered":"

Nghi\u00ean c\u1ee9u \u0111o\u00e0n h\u1ec7 l\u00e0 m\u1ed9t thi\u1ebft k\u1ebf nghi\u00ean c\u1ee9u quan s\u00e1t theo d\u00f5i m\u1ed9t nh\u00f3m ng\u01b0\u1eddi c\u00f3 c\u00f9ng \u0111\u1eb7c \u0111i\u1ec3m theo th\u1eddi gian \u0111\u1ec3 so s\u00e1nh nguy c\u01a1 m\u1eafc b\u1ec7nh gi\u1eefa nh\u1eefng ng\u01b0\u1eddi c\u00f3 ph\u01a1i nhi\u1ec5m v\u00e0 kh\u00f4ng ph\u01a1i nhi\u1ec5m v\u1edbi m\u1ed9t y\u1ebfu t\u1ed1 nguy c\u01a1.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","nhom_thuat_ngu":[476],"class_list":["post-3056","thuat_ngu","type-thuat_ngu","status-publish","hentry","nhom_thuat_ngu-nghien-cuu-bang-chung"],"yoast_head":"\nNghi\u00ean c\u1ee9u \u0111o\u00e0n h\u1ec7 (cohort study) l\u00e0 g\u00ec? - Dy Khoa Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dykhoa.com\/blog\/thuat-ngu\/nghien-cuu-doan-he-cohort-study\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nghi\u00ean c\u1ee9u \u0111o\u00e0n h\u1ec7 (cohort study) l\u00e0 g\u00ec? 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