United Arab Emirates
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.65 male(s)/female
65 years and over: 2.56 male(s)/female
total population: 1.47 male(s)/female (2003 est.)

United Kingdom
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.02 male(s)/female
65 years and over: 0.73 male(s)/female
total population: 0.98 male(s)/female (2003 est.)

United States
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: 0.71 male(s)/female
total population: 0.97 male(s)/female (2003 est.)

Uruguay
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.69 male(s)/female
total population: 0.95 male(s)/female (2003 est.)

Uzbekistan
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.68 male(s)/female
total population: 0.98 male(s)/female (2003 est.)

Vanuatu
at birth: 1.05 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.05 male(s)/female
65 years and over: 1.15 male(s)/female
total population: 1.05 male(s)/female (2003 est.)

Venezuela
at birth: 1.08 male(s)/female
under 15 years: 1.07 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.84 male(s)/female
total population: 1.02 male(s)/female (2003 est.)

Vietnam
at birth: 1.08 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 0.97 male(s)/female
65 years and over: 0.71 male(s)/female
total population: 0.98 male(s)/female (2003 est.)

Virgin Islands
at birth: 1.06 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 0.82 male(s)/female
65 years and over: 0.74 male(s)/female
total population: 0.87 male(s)/female (2003 est.)

West Bank
at birth: 1.06 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.05 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 1.04 male(s)/female (2003 est.)