Their research predicts that by 2020, depression, currently ranked fourth in terms of cost to society, will jump into second place, accounting for 15 % of illness worldwide.
他們的研究預測，至西元二○二○年，憂鬱症所造成的社會成本損失，將由現在的第四位，躍升為第二位，佔全球疾病負荷的百分之十五。