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Hazard ratio ]

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  • Risk¿Í ¿¹ÈÄ

    • ÀüÇâÀû cohort ¿¬±¸, ÈÄÇâÀû cohort ¿¬±¸ÀÇ ¹æ¹ý°ú Ä¡¿ìħ(bias)

    • RiskÀÇ ºñ±³¹æ¹ý(Àý´ë risk °¨¼ÒÀ², »ó´ë risk °¨¼ÒÀ², »ó´ëÀ§Çèµµ)

    • ¿¹ÈÄÀÎÀÚ

    • °¢ °á°ú¿¡ µû¸¥ ºñÀ²·Î ±âÀçµÈ »ç·ÊÀÇ ¿¹ÈÄÆò°¡

    • »ýÁ¸ºÐ¼®

  • ÇØ(harm)

    • Áõ·Êº¸°í¿Í case, series

    • Case-Control ¿¬±¸ÀÇ ÀåÁ¡°ú ´ÜÁ¡

    • Odds ratios, »ó´ëÀ§ÇèµµÀÇ °è»ê

      • 2 ¥ª 2 Ç¥

        • ¡¡ Áúº´ À¯ Áúº´ ¹«
          ¿äÀÎ À¯ a b
          ¿äÀÎ ¹« c d
      • Odds

        • Odds are just an alternative way of expressing the likelihood of an event such as catching the flu. Probability is the expected number of flu patients divided by the total number of patients. Odds would be the expected number of flu patients divided by the expected number of non-flu patients.

        • During the flu season, you might see ten patients in a day. One would have the flu and the other nine would have something else. So the probability of the flu in your patient pool would be one out of ten. The odds would be one to nine.

      • ±³Â÷ºñ(Odds ratio)

        • ƯÁ¤ »ç°ÇÀÌ µÎ ±×·ì¿¡¼­ ¹ß»ýÇÒ È®·üÀÇ ºñ±³ (The odds ratio is a way of comparing whether the probability of a certain event is the same for two groups).

        • ±³Â÷ºñ°¡ 1ÀÌ´Ù

          • µÎ ±×·ì¿¡¼­ÀÇ ¹ß»ý·üÀÌ °°´Ù.

        • ±³Â÷ºñ°¡ 1º¸´Ù Å©´Ù

          • ù ¹øÂ° ±×·ì¿¡¼­ »ç°ÇÀÌ ¹ß»ýÇÒ È®·üÀÌ ´õ ³ô´Ù.

        • http://www.cmh.edu/stats/definitions/odds.htm
      • »ó´ëÀ§Çèµµ (Relative Risk)

  • Bias¿Í ¿ì¿¬¼º

    • BiasÀÇ Á¾·ù

    • ¼±Åà Bias, ÃøÁ¤ bias, È¥¶õÀÎÀÚ

    • Bias¿Í È¥¶õÀÎÀÚ, ¿ì¿¬¼ºÀÇ Â÷ÀÌ

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