Question:
In a screening test for DM out of 1000 population, 90 were positive. Then the gold standard test was done in which 100 were positive. Calculate the sensitivity?
In a screening test for DM out of 1000 population, 90 were positive. Then the gold standard test was done in which 100 were positive. Calculate the sensitivity?
Updated On: Jul 12, 2025
- 90/100
- 100/110
- 80/100
- 100/100
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Sensitivity is a measure of the test's ability to correctly identify those with the disease (true positives) among all individuals who actually have the disease. It is calculated using the formula:
Sensitivity = (True Positives) / (True Positives + False Negatives)
In this problem:
- The gold standard test identified 100 true positives.
- The screening test identified 90 positives, which are assumed to be true positives as compared to the gold standard.
Thus, applying the formula:
Sensitivity = 90/100
Therefore, the sensitivity of the screening test is 90/100 or 90%.
Was this answer helpful?
0
0
Top NEET PG Social And Preventive Medicine Questions
- In a village, it is observed that several farmers have crossed gait and use a stick for support to stand up and walk. Due to poor yield from farms, they consume meals containing rice and pulses only. Supplementing their diet with which of the following vitamins could have prevented this?
- Research is being conducted to find the association between aniline dye exposure and bladder cancer in workers who have worked in the industry for > 20 years. Two groups were formed: one directly involved with dye handling and the other group consisting of office clerks not directly exposed to the dye. Years of occupation were noted from records. What type of study is being performed?
- The blood pressure of a population was tracked from childhood to adulthood. It was observed that those who had lower BP in childhood had low BP in adulthood, while those who had higher BP in childhood had high BP in adulthood. This can be best described as
- A 30-week primigravida complaints of reduced vision at night. She has been avoiding papaya, mango, and other fruits throughout her pregnancy as she thinks they could be abortifacients. It is the primary duty of which of the following workers to provide counseling and information to the patient?
- A 22-year-old female comes to the STI clinic with minimal vaginal discharge. On speculum examination, erosions are seen on the cervix. Which of the following kit should be given to this patient?
View More Questions
Top NEET PG Biostatistics Questions
- Cross product ratio is determined by which study ?
- In a normal curve what is the area that comes under 1 standard deviation :
- Confounding factor is defined as :
- The significance of difference between proportions can also be tested by :
- Paired T test is defined as
View More Questions
Top NEET PG Questions
- A patient hailing from Delhi presents with fever, arthralgia, and extensive petechial rash for 3 days. Lab investigations revealed a hemoglobin of 9 g/ dL, a white blood cell count of 9000 cells/mm3, a platelet count of 20000 cells/mm3, and a prolonged bleeding time. The clotting time was normal. What is the most likely diagnosis?
- Which of the following statements is true about Trichomonas vaginalis?
- A lady from West Rajasthan presented with an ulcer surrounded by erythema on the right leg. Microscopy of the biopsy from the edge of the ulcer showed organisms with dark staining nuclei and kinetoplast. What is the most likely causative agent?
- A child presents with a fever and a rash. Urine examination showed cells with owl's eye appearance. What is the most likely diagnosis?
- Infection with Clonorchis sinensis is associated with an increased risk of__?
View More Questions