EBCOG Part 1 2 Weeks Crash Course Biostatistics and Hot topics Day 2 EBCOG Part 1 2 Weeks Crash Course Biostatistics and Hot topics Day 2 Name A. PPVB. Test positiveC. Incidence densityD. SensitivityE. True negativeF. NPVG. Attributable riskH. Prevalence I. Relative riskJ. Period prevalenceK. Cumulative incidenceL. SpecificityM. Likelihood ratio negativeN. Likelihood ratio positiveLead in:An antenatal screening test was carried out on 10,000 pregnant women, 420 of whom tested positive. It was later found that 180 of these pregnancies were actually affected with the condition, with a total of 210 conditions in the original group. (Clue: Fill the 2x2 table to get the answers)1.A doctor after reading this study tells the patient that 2.1% of pregnant women are affected by this condition. What is the figure he is quoting? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive 2.A researcher does the following calculation. 9550/9790=97.7%. What does this figure represent? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive 3.A researcher does the following calculation.9550/9580=99.7%. What does this figure represent? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive 4.A researcher does the following calculation. 180/210=85.7%. What does this figure represent? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive 5.A researcher does the following calculation. 180/420=42%. What does this figure represent? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive 6.A researcher does the following calculation. 85.7/100-97.7 (Sn/1-Sn). What does this figure represent? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive 7.A researcher does the following calculation. 100-85.7/97.7 (1-Sn/Sp). What does this figure represent? Please select your answer A. PPV B. Test positive C. Incidence density D. Sensitivity E. True negative F. NPV G. Attributable risk H. Prevalence I. Relative risk J. Period prevalence K. Cumulative incidence L. Specificity M. Likelihood ratio negative N. Likelihood ratio positive A. 1.35B. 0.03C. 100D. 3.01E. 0.39F. 24.0G. 25.5H. 1%I. 1.33J. 1.50Lead in:A small study looks at endometrial cancer rates in patients with intrauterine systems. The results are below8.What is the Absolute risk increase? Please select your answer A. 1.35 B. 0.03 C. 100 D. 3.01 E. 0.39 F. 24.0 G. 25.5 H. 1% I. 1.33 J. 1.50 9.What is the number needed to harm? Please select your answer A. 1.35 B. 0.03 C. 100 D. 3.01 E. 0.39 F. 24.0 G. 25.5 H. 1% I. 1.33 J. 1.50 10.What is the relative risk of endometrial cancer in patients with IUS? Please select your answer A. 1.35 B. 0.03 C. 100 D. 3.01 E. 0.39 F. 24.0 G. 25.5 H. 1% I. 1.33 J. 1.50 A. Pearsons correlation testB. Paired t testC. Logistic regressionD. Wilcoxan sign rank testE. One way ANOVAF. Kruskal Wallis testG. Multiple regressionH. RCT intention to treat analysisI. Independent t testJ. Spearman correlation testK. Simple linear regressionL. Chi squareM. Percentage differenceN. Mann Whitney U testLead in:This study was conducted to compare the rate of vaginal delivery within 24 hour among patients who undergo induction of labor between those who receive vaginal single dose of misoprostol with those receive up to 5 doses of this medication.11. The majority (70.87%) had Vaginal Delivery in 24 hours in one dose group versus 75.73% in multiple doses without significant difference between both groups (p=0.431). Which is the appropriate test used? Please select your answer A. Pearsons correlation test B. Paired t test C. Logistic regression D. Wilcoxan sign rank test E. One way ANOVA F. Kruskal Wallis test G. Multiple regression H. RCT intention to treat analysis I. Independent t test J. Spearman correlation test K. Simple linear regression L. Chi square M. Percentage difference N. Mann Whitney U test 12.Latent period in one dose group ranged from 3-11 with mean value of 5.918±2.077 while in multi-dose group was 3-12 (with mean value 6.500 ± 2.173) without significant difference between groups as p=0.075. Which is the appropriate test used if the variable is not normally distributed? Please select your answer A. Pearsons correlation test B. Paired t test C. Logistic regression D. Wilcoxan sign rank test E. One way ANOVA F. Kruskal Wallis test G. Multiple regression H. RCT intention to treat analysis I. Independent t test J. Spearman correlation test K. Simple linear regression L. Chi square M. Percentage difference N. Mann Whitney U test 11.To find the association between Time from induction and socioeconomic status Please select your answer A. Pearsons correlation test B. Paired t test C. Logistic regression D. Wilcoxan sign rank test E. One way ANOVA F. Kruskal Wallis test G. Multiple regression H. RCT intention to treat analysis I. Independent t test J. Spearman correlation test K. Simple linear regression L. Chi square M. Percentage difference N. Mann Whitney U test Time is Up! Time's up Sajith P V2022-05-09T08:21:12+00:00