Birth Rate, Death Rate And Growth Rate
In a community of 5000 people, the crude birth rate is 30 per 1000 people. The number of pregnant females is?
| A | 150 | |
| B | 65 | |
| C |
175 |
|
| D |
200 |
In a community of 5000 people, the crude birth rate is 30 per 1000 people. The number of pregnant females is?
| A |
150 |
|
| B |
65 |
|
| C |
175 |
|
| D |
200 |
Crude birth rate = (Number of liver births in a year/ Estimated mid year population) x 1000
30 = (Live births/ 5000) x 1000
Live births = 150 (indirectly indication the number of pregnancy)
| A | 18—20 years | |
| B | 20—23years | |
| C | 28—35 years | |
| D | 47 — 50 years |
|
Rate |
Annual GR % |
Yrs required |
| Stationary | No growth |
– |
| Slow growth |
0.5 |
>139 |
|
Moderate growth |
0.5-1 |
139–70 |
|
Rapid growth |
1-1.5 |
70-47 |
| Very rapid growth |
1.5-2 |
47-35 |
| Explosive growth |
2-2.5 |
35-28 |
| Explosive growth |
3-3.5 |
23-20 |
| Explosive growth |
3.5-4 |
20-18 |
| A | It is an Indicator of fertility | |
| B |
It excludes the still births |
|
| C |
It is unaffected by age-distribution |
|
| D |
It is a better measure of fertility than the general fertility rate |
General fertility rate is a better measure of fertility than the crude birth rate, because the denominator is restricted to the number of woman in childbearing age rather than the whole population.
| A |
1st March |
|
| B |
1st July |
|
| C |
1st April |
|
| D |
15th August |
Ans. is ‘b’ i.e., 1st July
o A rate comprises the following elements ‑
i) Numerator, ii) Denominator, iii) Time specification, iv) Multiplier
Numerator —> Refers to the number of times an event (e.g. sickness, birth, death) has occured in a population, during a specified time period. Numerator is a component of the denominator in calculating a rate, but not in a ratio. Denominator —> Denominator may be :‑
i) Related to population
Mid year population –> population estimated on first of July of an year
Population at risk
Person – time
Person distance
ii) Related to total events
As in case fatality rate, denominator is total number of cases rather than total population.
| A |
Population & total mortality |
|
| B |
Population & proportional mortality |
|
| C |
Population & age-specific mortality |
|
| D |
None of the above |
Ans. is ‘a’ i.e., Population & total mortality
According to 2001 census, what was the growth rate of India:
September 2007
| A |
1.03% |
|
| B |
1.33% |
|
| C |
1.63% |
|
| D |
1.93% |
Ans. D: 1.93%
Average annual exponential growth rate is 1.93% whereas decadal growth rate is 21.34% as per 2001 census.
Denominator in specific death rate due to coronary artery disease ‑
| A |
1000 live birth |
|
| B |
Mid year population |
|
| C |
Total number of deaths in a community |
|
| D |
Total number of case population in community |
Ans. is ‘b’ i.e., Mid year population
Crude death rate
- It is the simplest measure of mortality.
- It is defined as “the number of death (from all causes) per 1000 estimated mid-year population in one year, in a given place”.
| A | 70-47 years | |
| B |
47-35 years |
|
| C |
35-28 years |
|
| D |
28-23 |
Ans. is ‘b’ i.e. 47-35 years
Crude birth rate is the simplest measure of fertility because the denominator is ‑
| A |
Total population |
|
| B |
Mid-year population |
|
| C |
Pre-term births |
|
| D |
Live birth |
Ans. is ‘b’ i.e., Mid-year population
Population explosion (explosive growth) is defined as the growth rate ‑
| A |
0.5-1.0 |
|
| B |
1-1.5 |
|
| C |
1.5-2 |
|
| D |
> 2 |
Ans. is `d’ i.e., > 2
|
Rate/Phase
Stationary population Slow growth Moderate growth Rapid growth Very Raped growth Explosive growth |
Annual rate of growth in % No growth <5 0.5 to 0.1 1.0 to 1.5 1.5 to 2.0 > 2.0 |
