³í¹®) Stronger association of perceived health with socio-economic inequality during COVID-19 pandemic than pre-pandemicera ¼¿ï´ëº´¿ø À±¿µÈ£ ±³¼ö(»çÁø ñ§) ÆÀ[À±Á¦¿¬ ±³¼ö(ñé), ÇѸ²´ë ½ÉÁø¾Æ ±³¼ö(éÓ)]