Almost 90% of maternal deaths during childbirth occur in Asia and sub-Saharan Africa, compared to less than 1% in the developed world. Those who live in poverty have also been shown to have a far greater likelihood of having or incurring a disability within their lifetime. Infectious diseases such as malaria and tuberculosis can perpetuate poverty by diverting health and economic resources from investment and productivity; malaria decreases GDP growth by up to 1.3% in some developing nations and AIDS decreases African growth by 0.3–1.5% annually.