The birth and death registration system is inadequate in Bangladesh to get reliable estimates of fertility and mortality. As a result the fertility and mortality estimates are derived from population census data or specially designed sample surveys. In the past, number of studies were undertaken to meet the data requirements for the development planning and policy makng particularly for the family planning administration and evaluation purposes.
Kind of Data
Sample survey data [ssd]
Version
Version Date
1989-01-01
Coverage
Geographic Coverage
- Demographic Survey in East Pahistan (DSEP), 1961-62
- Population Growth Estimation (PGE), 1962-65
- National impact Survey (NIS), 1968-69
- Bangladesh Retrospective Survey on Fertility and Mortality (BRSFM), 1974
- Bangladesh Fertility Survey (BFS), 1975-76
- Bangladesh Contraceptive Prevalence Survey (BCPS), 1979-80 and 1981
Producers and sponsors
Authoring entity/Primary investigators
Agency Name
Affiliation
Bangladesh Bureau of Statistics
Statistics Division, Ministry of Planning
Funding Agency/Sponsor
Name
Abbreviation
Statistics Division
SD
Sampling
Sampling Procedure
All the administrative units down to the village/enumeration area were geo-coded for the purpose of the population census 1981. An enumeration area (E.A) was an area consisting of approximately 100 households. Villages having more than 100 households were sub-divided into a number of E.A's. Maps were prepared for all the E.A's: prior to the census. It was decided to use the census E.A's as the first stage sampling frame for this survey.
Weighting
E.As. were proportionately allocated to strata. However, minor adjustments were made for too small and too big strata. For required extent of reliability, each strata should have at least 125 sample E.As. Strata having less than 125 sample E.As. as per proportionate allocation, had been adjusted for 125 smaple E.As. by taking out some E.As. from big strata.
Data Collection
Dates of Data Collection (YYYY/MM/DD)
Start date
End date
1987-12-31
1989-04-02
Mode of data collection
Face-to-face [f2f]
Type of Research Instrument
A similar retrospective survey was conducted by the Bangladesh Bureau of Statistics (BBS) in 1980. The survey was known as 'Base Line Demographic Survey (BLDS). The main purpose of the BLDS was to bound the population required for continuous sample registration system. The BLDS also collected information required for estimating current and cumulative fertility, cross-classified by the socio-economic variables. Since 1981, BBS have been continuing with the operation of sample vital registration system in the country. The 1981 Population Census was conducted using a simple questionnaire appropriate for optical mark reading (OMR). The census questionnaire was designed to collect information on nine personal characteristics only. Thereafter a sample survey was conducted during December1981 to February 1982 as a part of the main census and included questions suitable for indepth study of fertility and mortality and their interrelationships with socio-econornic variables.