Sex ratio:
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1 male(s)/female
65 years and over: 1.2 male(s)/female
total population: 1.02 male(s)/female (2004 est.)

Infant mortality rate:
total: 64.05 deaths/1,000 live births
female: 63.26 deaths/1,000 live births (2004 est.)
male: 64.8 deaths/1,000 live births

Life expectancy at birth:
total population: 58.13 years
male: 56.96 years
female: 59.36 years (2004 est.)

Total fertility rate:
4.97 children born/woman (2004 est.)

HIV/AIDS - adult prevalence rate:
2.6% (2001 est.)

HIV/AIDS - people living with HIV/AIDS:
450,000 (2001 est.)

HIV/AIDS - deaths:
23,000 (2001 est.)

Major infectious diseases:
typhoid fever, malaria, dengue fever, trypanosomiasis,
schistosomiasis
overall degree of risk: very high (2004)

Nationality:
noun: Sudanese (singular and plural)
adjective: Sudanese

Ethnic groups:
black 52%, Arab 39%, Beja 6%, foreigners 2%, other 1%