Sex ratio:
at birth: 1.03 male(s)/female
under 15 years: 0.96 male(s)/female
15-64 years: 0.92 male(s)/female
65 years and over: 0.89 male(s)/female
total population: 0.94 male(s)/female (2006 est.)
Infant mortality rate:
total: 160.39 deaths/1,000 live births
male: 177.47 deaths/1,000 live births
female: 142.8 deaths/1,000 live births (2006 est.)
Life expectancy at birth:
total population: 40.22 years
male: 38.05 years
female: 42.46 years (2006 est.)
Total fertility rate:
6.08 children born/woman (2006 est.)
HIV/AIDS - adult prevalence rate:
7% (2001 est.)
HIV/AIDS - people living with HIV/AIDS:
170,000 (2001 est.)
HIV/AIDS - deaths:
11,000 (2001 est.)
Major infectious diseases:
degree of risk: very high
food or waterborne diseases: bacterial and protozoal diarrhea,
hepatitis A, and typhoid fever
vectorborne diseases: malaria and yellow fever are high risks in
some locations
water contact disease: schistosomiasis
aerosolized dust or soil contact disease: Lassa fever (2007)
Nationality:
noun: Sierra Leonean(s)
adjective: Sierra Leonean
Ethnic groups:
20 African ethnic groups 90% (Temne 30%, Mende 30%, other 30%),
Creole (Krio) 10% (descendants of freed Jamaican slaves who were
settled in the Freetown area in the late-18th century), refugees
from Liberia's recent civil war, small numbers of Europeans,
Lebanese, Pakistanis, and Indians