Stat Bull Metrop Insur Co. 1991 Jul-Sep;72(3):19-26.
1990 was an excellent year for life expectancy. Average future lifetime for both infant boys and girls rose to all-time highs. However, the gender gap in expectation of life at birth widened for the first time in more than a decade. The increase may be a statistical aberration or, more likely, a reflection of the growing mortality toll from AIDS, especially among males. If so, then the outlook is for widening longevity gaps between the sexes. On the other hand, there was more good news, as the infant mortality rate decreased dramatically, falling to a record low. Also encouraging is the continued, if somewhat unsteady, long-term trend toward gradual narrowing of the white/non-white/black life expectancy differentials.
1990年是预期寿命方面的出色一年。男婴和女婴的平均未来寿命均升至历史最高水平。然而，出生时预期寿命的性别差距在十多年来首次扩大。这种增长可能是统计偏差，或者更有可能是艾滋病造成的死亡人数不断增加的反映，尤其是在男性中。如果是这样，那么未来两性之间的寿命差距将会扩大。另一方面，还有更多好消息，婴儿死亡率大幅下降，降至历史最低水平。同样令人鼓舞的是，白人/非白人/黑人预期寿命差异持续呈长期逐渐缩小的趋势，尽管这一趋势有些不稳定。
