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רפואה נתמכת ראיות

רפואה נתמכת ראיות

Health & Fitness:Medicine

סטטיסטיקה מרפאת 77- האמת המפתיעה על רגרסיות

סטטיסטיקה מרפאת 77- האמת המפתיעה על רגרסיות

2024-12-12
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Neoadjuvant FOLFIRINOX versus upfront surgery for resectable pancreatic head cancer (NORPACT-1): a multicentre, randomised, phase 2 trial

למרות שמדובר בטכניקות מורכבות, גם הרגרסיות וגם עקומת קפלן מאייר הן רק סטטיסטיקה תיאורית. הן מספרות לנו משהו על המדגם במחקר מסוים, אך אינן מספיקות כדי להסיק מתוכן על המציאות, האמת שמחוץ למחקר. כדי להסיק על המציאות ניתן להשתמש ברווח ברך סמך (עבור מקדמי רגרסיות, למשל) ובמבחנים סטטיסטיים (להשוואה בין שתי עקומות קפלן-מאייר, למשל)

 

Kaplan-meier curves

Cox regression

Statistical inference in regressions

Statistical test

Confidence interval

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