Sex ratio:
at birth: 1.03 male(s)/female
under 15 years: 1.01 male(s)/female
15-64 years: 1.04 male(s)/female
65 years and over: 0.98 male(s)/female
total population: 1.02 male(s)/female (2004 est.)
Infant mortality rate:
total: 70.49 deaths/1,000 live births
female: 67.34 deaths/1,000 live births (2004 est.)
male: 73.55 deaths/1,000 live births
Life expectancy at birth:
total population: 50.49 years
male: 50.35 years
female: 50.63 years (2004 est.)
Total fertility rate:
5.32 children born/woman (2004 est.)
HIV/AIDS - adult prevalence rate:
5.4% (2003 est.)
HIV/AIDS - people living with HIV/AIDS:
3.6 million (2003 est.)
HIV/AIDS - deaths:
310,000 (2003 est.)
Major infectious diseases:
typhoid fever, malaria, Lassa fever
overall degree of risk: very high (2004)
Nationality:
noun: Nigerian(s)
adjective: Nigerian
Ethnic groups:
Nigeria, which is Africa's most populous country, is composed of
more than 250 ethnic groups; the following are the most populous and
politically influential: Hausa and Fulani 29%, Yoruba 21%, Igbo
(Ibo) 18%, Ijaw 10%, Kanuri 4%, Ibibio 3.5%, Tiv 2.5%