BELIZE: The IMR is derived from projections of an IMR estimate for 1985 and CDR estimates for 1976 and 1985. Life expectancy at birth is estimated from Coale-Demeny model life tables based on the CDR and age-sex distribution.

BOLIVIA: Both the IMR and life expectancy at birth are from _World Population Prospects 1990._ The U.N./CELADE based its estimates on aralysis of the 1976 census as well as on surveys. The IMR and life expectancy at birth were projected to 1985-89 with the U.N. medium scenario. The Demographic and Health Survey (1989) estimate of the IMR was also considered.

BRAZIL: Both the IMR and life expectancy at birth estimates are from _World Population Prospects 1990._ The IMR estimate is close to the results of the Demographic and Health Survey (1986). Life expectancy and IMR estimates for 1985-89 are as projected by the U.N./CELADE.

CHILE: Both the IMR and life expectancy at birth estimates are from _World Population Prospects 1990._ The U.N./CELADE estimates are based on the 1982 census and on vital registration estimates.

COLOMBIA: Both the IMR and life expectancy at birth estimates are from _World Population Prospects 1990._ The U.N./CELADE estimates are based on the 1985 census and the 1986 Demographic and Health Survey, and are consistent with the 1990 Demographic and Health Survey.

COSTA RICA: Both the IMR and life expectancy at birth estimates are from _World Population Prospects 1990._ The U.N./CELADE estimates are based on current vital registration system estimates.

CUBA: The IMR is the average of official vital registration estimates for 1985 to 1989 as published in _PVSR._ Life expectancy at birth is obtained from Coale-Demeny model life tables, selected on the basis of the official CDR and age-sex distribution.

DOMINICA: The IMR is projected from the trend in official estimates from the vital registration system for 1973 to 1983 and an estimate for 1985 by the U.S. Bureau of the Census. Life expectancy at birth is estimated from Coale-Demeny model life tables based on the official CDR and age-sex distribution.

DOMINICAN REPUBLIC: Both the IMR and life expectancy at birth are from _World Population Prospects 1990._ The U.N./CELADE estimate for the IMR is based on the 1986 Demographic and Health Survey. Life expectancy at birth is estimated from model life tables based on the IMR. ECUADOR: Both the IMR and life expectancy at birth are from _World Population Prospects 1990._ The U.N./CELADE based its estimates on the 1979 World Fertility Survey, the 1982 census, and the 1987 Demographic and Health Survey. The U.N. medium mortality decline trend was used to project the estimates to 1985-89.

EL SALVADOR: Both the IMR and life expectancy at birth are from _World Population Prospects 1990._ The U.N./CELADE based its estimates on the 1978 World Fertility Survey, the 1985 Demographic and Health Survey, and the 1988 Family Health Survey. The U.N. medium mortality decline trend was used to project the estimates to 1985-89.

GRENADA: Both the IMR and CDR are estimated from government sources _(Statistical Digest,_ Economic Affairs Secretariat, and Ministry of Finance) and from estimates of the U.S. Bureau of the Census. Life expectancy at birth is estimated from Coale-Demeny model life tables selected on the basis of the official CDR and the age-sex distribution. Current IMR and life expectancy estimates were obtained by Bank projection.

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