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1) Àΰú¼ºÀÇ °µµ(Strength of association)
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2) ºÐ¼® Ä¡¿ìħ ¶Ç´Â ÆíÇâ(Analytic bias)
Àΰú¼ºÀ» Æò°¡Çϴµ¥ ÀÖ¾î¼ Ã¼°èÀû ¿ÀÂ÷¸¦ ¶æÇϴµ¥ Åë»ó 4°¡Áö À¯ÇüÀÌ ÀÖ´Ù. ÀÚ·áÀÇ ¼±Åà ġ¿ìħ(selection bias), Á¤º¸ Ä¡¿ì½É(information bias), È¥¶õ Ä¡¿ìħ(confounding bias), ¿ªÀΰú¼º Ä¡¿ìħ(reverse causality bias)À» µé ¼ö ÀÖ´Ù
3) »ý¹°ÇÐÀû ¼ººÐ(Biologic gradient)
ÀϹÝÀûÀ¸·Î ¹é½ÅÀº Á¢Á¾·®ÀÌ ¸¹À»¼ö·Ï, Á¢Á¾È½¼ö°¡ ¸¹À»¼ö·Ï ºÎÀÛ¿ëÀÇ¡¦(»ý·«)
4) Åë°èÀû À¯ÀǼº(Statistical significance)
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