Because the birth and death rates have both fallen sharply, the structure of Taiwan's population has aged. Since 1994 the ROC has formally entered the ranks of what the World Health Organization defines as the "elderly nations."
由於出生率與死亡率大幅下降，導致人口結構老化，我國從民國八十三年起，已正式邁入國際衛生組織定義的「老人國」。