True, that is confusing. One potential explanation is that they’re probably talking about infertility for one year, rather than permanent infertility.
Whether or not this is the true reason why infertility has such a low disability ranking, this uncovers an interesting point—the basic DALY model assumes that the burden of having a disability in year 1 is independent of whether you also have that disability in year 2, which is clearly not true for infertility. One person having lifelong infertility is much more than 50 people having infertility for one year—the latter may actually benefit them!
True, that is confusing. One potential explanation is that they’re probably talking about infertility for one year, rather than permanent infertility.
Whether or not this is the true reason why infertility has such a low disability ranking, this uncovers an interesting point—the basic DALY model assumes that the burden of having a disability in year 1 is independent of whether you also have that disability in year 2, which is clearly not true for infertility. One person having lifelong infertility is much more than 50 people having infertility for one year—the latter may actually benefit them!