{"id":3057,"date":"2026-10-12T08:00:00","date_gmt":"2026-10-12T01:00:00","guid":{"rendered":"https:\/\/dykhoa.com\/blog\/?post_type=thuat_ngu&p=3056"},"modified":"2026-10-12T08:00:00","modified_gmt":"2026-10-12T01:00:00","slug":"nghien-cuu-benh-chung-case-control-study","status":"publish","type":"thuat_ngu","link":"https:\/\/dykhoa.com\/blog\/thuat-ngu\/nghien-cuu-benh-chung-case-control-study\/","title":{"rendered":"Nghi\u00ean c\u1ee9u b\u1ec7nh ch\u1ee9ng (case-control study) l\u00e0 g\u00ec?"},"content":{"rendered":"

Nghi\u00ean c\u1ee9u b\u1ec7nh ch\u1ee9ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p nhanh ch\u00f3ng v\u00e0 kinh t\u1ebf nh\u1ea5t \u0111\u1ec3 kh\u1ea3o s\u00e1t c\u00e1c b\u1ec7nh hi\u1ebfm g\u1eb7p (Schulz & Grimes, 2002). Xem b\u00e0i M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi c\u00f3 \u0111\u1ee7 \u0111\u1ec3 k\u1ebft lu\u1eadn?<\/a>.<\/p>\n

T\u00ednh to\u00e1n t\u1ec9 s\u1ed1 s\u1ed1 ch\u00eanh (Odds Ratio – OR)<\/h2>\n

Thi\u1ebft k\u1ebf n\u00e0y kh\u00f4ng \u0111o \u0111\u01b0\u1ee3c tr\u1ef1c ti\u1ebfp nguy c\u01a1 t\u01b0\u01a1ng \u0111\u1ed1i (RR) m\u00e0 \u01b0\u1edbc t\u00ednh qua t\u1ec9 s\u1ed1 s\u1ed1 ch\u00eanh (Odds Ratio): ng\u01b0\u1eddi m\u1eafc b\u1ec7nh c\u00f3 kh\u1ea3 n\u0103ng t\u1eebng ti\u1ebfp x\u00fac v\u1edbi y\u1ebfu t\u1ed1 nghi ng\u1edd cao g\u1ea5p bao nhi\u00eau l\u1ea7n so v\u1edbi ng\u01b0\u1eddi kh\u1ecfe m\u1ea1nh.<\/p>\n

C\u1ea1m b\u1eaby thi\u00ean v\u1ecb h\u1ed3i t\u01b0\u1edfng (Recall bias)<\/h2>\n

Ng\u01b0\u1eddi \u0111\u00e3 m\u1eafc b\u1ec7nh n\u1eb7ng th\u01b0\u1eddng c\u00f3 xu h\u01b0\u1edbng l\u1ee5c l\u1ecdi k\u00fd \u1ee9c v\u00e0 b\u00e1o c\u00e1o vi\u1ec7c ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t trong qu\u00e1 kh\u1ee9 nhi\u1ec1u h\u01a1n ng\u01b0\u1eddi kh\u1ecfe m\u1ea1nh b\u00ecnh th\u01b0\u1eddng.<\/p>\n","protected":false},"excerpt":{"rendered":"

Nghi\u00ean c\u1ee9u b\u1ec7nh ch\u1ee9ng l\u00e0 m\u1ed9t nghi\u00ean c\u1ee9u quan s\u00e1t b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c ch\u1ecdn m\u1ed9t nh\u00f3m ng\u01b0\u1eddi \u0111\u00e3 m\u1eafc b\u1ec7nh (ca b\u1ec7nh) v\u00e0 m\u1ed9t nh\u00f3m ng\u01b0\u1eddi kh\u00f4ng m\u1eafc b\u1ec7nh (ch\u1ee9ng), sau \u0111\u00f3 so s\u00e1nh ng\u01b0\u1ee3c v\u1ec1 qu\u00e1 kh\u1ee9 m\u1ee9c \u0111\u1ed9 ph\u01a1i nhi\u1ec5m v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 nguy c\u01a1.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","nhom_thuat_ngu":[476],"class_list":["post-3057","thuat_ngu","type-thuat_ngu","status-publish","hentry","nhom_thuat_ngu-nghien-cuu-bang-chung"],"yoast_head":"\nNghi\u00ean c\u1ee9u b\u1ec7nh ch\u1ee9ng (case-control 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-benh-chung-case-control-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 b\u1ec7nh ch\u1ee9ng (case-control study) l\u00e0 g\u00ec? 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