EBCOG P1 – 3 month May 2022 – Biostatistics Day 3 SBA

1.Difference in BMI (normally distributed) between cesarian and vaginal delivery group is tested by

2.You decide to do a study looking at proportions of women taking pre‐conceptual folic acid in each of 5 socioeconomic groups. Once the data is collated which statistical test would be most appropriate to analyse the data?

3.We want to find the relationship between GFR and age along with creatinine level and race are taken into consideration

4.To find the effect of change in maternal age on fetal birth weight (normal distribution)

5.To look for the different outcomes of pregnancy in relation to type of delivery.

6.To measure the difference between expected and observed outcome of breech delivery and type of delivery in a follow up study when sample size was 9.

7.If TP is True positive, FP is false positive, TN is True negative and FN is false negative. What is the formula used to calculate PPV?

8.If TP is True positive, FP is false positive, TN is True negative and FN is false negative. What is the formula used to calculate NPV?

9.If TP is True positive, FP is false positive, TN is True negative and FN is false negative. What is the formula used to calculate Sensitivity?

10. If TP is True positive, FP is false positive, TN is True negative and FN is false negative. What is the formula used to calculate Specificity?

11.Because of full beds and increased admissions of pre term labor, a hospital is thinking of a test for pre term labor. For preterm labor to be more accurately diagnosed, what is the best predictor of the test?