Percent distribution of Bangladesh population by age and sex In 2015
The age composition of a population is a very important factor in determining its socio-economic well-being of a country. This table shows the household population of the SVRS area by age and sex in percentages. The SVRS enumerated 470124 males and 468628 females in SVRS, 2015 resulting in a sex ratio 100.3 males per 100 females implying a deficit of 0.02 percentage points over 2014 count. This ratio is 100.2 as obtained in 2011 census. The 2011 BDHS reported even more a smaller ratio (93.1%) than both of the above mentioned sources
. The age distribution presented in Table 2.6 shows that less than one third of the population (30.8%) is under 15 years of age. People aged 65 years and over constitute 4.7 percent of the total population. The corresponding proportions are 35.3 percent and 5.5 percent in the 2011 BDHS and 35.5 percent and 5.1 percent in 2011 census. The age-sex structure of the population by 5 year age groups is displayed by the population pyramid in Figure
Percent distribution of sample population by age, sex and division,
Chittagong followed by Sylhet divisions appear to be the most conducive to high fertility as theyhave the most young age structures with 34.3 and 34.1 of their populations falling under 15 years. The implication of these high proportions of population below 15 years is that Sylhet and Chittagong divisions will have high dependency burden with more inactive population.
It is also an indication of relatively high fertility in these two divisions compared to other regions . 2.5.1 Sex Composition Sex composition of a population refers to the proportional share of the males and females in the total population. It also shows the excess or deficit of one sex over the other. Table 2.9 shows the sex composition of the population in the SVRS area.
Overall, the males outnumbered the females by 0.2 percentage points or 0.4 percent resulting from a male-female ratio of 50.1 to 49.9. This feature is prevalent across regions of residence and the geographic divisions without any exception. Surprisingly, the ratio of males to females exactly agrees with the 2011 sample census results. 2.5.2
Dependency Ratio The most widely used summary measure of age-sex composition is the dependency ratio. The ratio measures the fraction of dependents in a population. In other words, the dependency ratio measures the number of inactive people whom each economically active person has to support. Dependents refer to people who are not in the workforce, such as those who are either too young or too old to work.
This measure is defined in this report as the ratio of population aged 0 –14 years and 65 years and over to the population aged 15–64 years old multiplied by 100, although other variants of this definition is used to dependency ratio. The overall dependency ratio is 55.0 percent, meaning that 55 inactive persons are dependent on 100 economically active persons.
More people (59.0 %) in the rural area than in urban area (49.0 %) are dependent on the work force. The dependency ratio varies from as low as 47.0 percent in Rajshahi division to as high as 63.0 percent in Chittagong division. The results are summarized in Table 2.9. The dependency ratio as obtained in 2011 sample census was 68.4 percent, while the Education Household Survey of 2014 reported this ratio to be 61.1 percent. 2.5.3 Child-Woman Ratio
- Report on Bangladesh Sample Vital Statistics 2015 by bbs.gov.bd