Question

The number of still birth registered from a rural area during 2000 was 150. During the same year there were 5000 live-births. Determine the still birth ratio.

• A. 60
• B. 30
• C. 3
• D. 6

Hint:

Do not confuse Stillbirth Ratio with Stillbirth Rate!
Ratio denominator = Live births only.
Rate denominator = Total births (Live births + Stillbirths). Always check which term the examiner uses.

Answer 1

The Correct Option is B

Step 1: Concept:
This question involves public health biostatistics, specifically requiring the calculation of the "Stillbirth Ratio" from raw demographic data.

Step 2: Key Formulas and approach:

• The Stillbirth Ratio is a vital statistical measure defined as the number of stillbirths per 1,000 live births during a given year in a specific population.
• The formula is: \[ \text{Stillbirth Ratio} = \left( \frac{\text{Number of Stillbirths}}{\text{Number of Live Births}} \right) \times 1000 \]

Step 3: Step-by-step Explanation:

• Given Data:
Number of stillbirths = 150
Number of live births = 5000

• Substitute these values directly into the formula:
\[ \text{Stillbirth Ratio} = \left( \frac{150}{5000} \right) \times 1000 \]
• Simplify the expression by handling the multiplier first for easier mental math:
\[ \text{Stillbirth Ratio} = 150 \times \left( \frac{1000}{5000} \right) \] \[ \text{Stillbirth Ratio} = 150 \times \left( \frac{1}{5} \right) \]
• Calculate the final division:
\[ \text{Stillbirth Ratio} = \frac{150}{5} = 30 \]
• The calculated ratio means there were 30 stillbirths for every 1,000 live births in that rural area.

Step 4: Final Answer:
The stillbirth ratio is 30, matching option (B).