▁ ▁In ▁ 2 0 1 5 , ▁C AD ▁affected ▁ 1 1 0 ▁million ▁people ▁and ▁resulted ▁in ▁ 8 . 9 ▁million ▁death s . ▁It ▁makes ▁up ▁ 1 5 . 6 % ▁of ▁all ▁death s , ▁making ▁it ▁the ▁most ▁common ▁cause ▁of ▁death ▁glob ally . ▁The ▁risk ▁of ▁death ▁from ▁C AD ▁for ▁a ▁given ▁age ▁decre ased ▁between ▁ 1 9 8 0 ▁and ▁ 2 0 1 0 , ▁especially ▁in ▁developed ▁countries . ▁The ▁number ▁of ▁cases ▁of ▁C AD ▁for ▁a ▁given ▁age ▁also ▁decre ased ▁between ▁ 1 9 9 0 ▁and ▁ 2 0 1 0 . ▁In ▁the ▁United ▁States ▁in ▁ 2 0 1 0 , ▁about ▁ 2 0 % ▁of ▁those ▁over ▁ 6 5 ▁had ▁C AD , ▁while ▁it ▁was ▁present ▁in ▁ 7 % ▁of ▁those ▁ 4 5 ▁to ▁ 6 4 , ▁and ▁ 1 . 3 % ▁of ▁those ▁ 1 8 ▁to ▁ 4 5 ; ▁rates ▁were ▁higher ▁among ▁men ▁than ▁women ▁of ▁a ▁given ▁age . ▁ ▁Sign s ▁and ▁sympt oms ▁Ch est ▁pain ▁that ▁occurs ▁regularly ▁with ▁activity , ▁after ▁e ating , ▁or ▁at ▁other ▁predict able ▁times ▁is ▁term ed ▁stable ▁ang ina ▁and ▁is ▁associated ▁with ▁narrow ings ▁of ▁the ▁ar ter ies ▁of ▁the ▁heart . ▁ ▁Ang ina ▁that ▁changes ▁in ▁intensity , ▁character ▁or ▁frequency ▁is ▁term ed ▁un stable . ▁Un stable ▁ang ina ▁may ▁preced e