http://ph.ucla.edu/

To enhance students ability to interpret data in charts and graphs

To discuss basic concepts in epidemiology and science

Gonorrhea global prevalence and reported drug resistance

Sean A. Buono et al. J. Antimicrob. Chemother. 2015;70:374-381

© The Author 2014. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com

Survival analysis by cryptococcal antigen test result, Multicenter AIDS Cohort and the Women's Interagency HIV Study, 1986–2012.

Jennie McKenney et al. Clin Infect Dis. 2015;60:959-965

© The Author 2014. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.

Sensitivity is the ability of a test to detect a positive result in those with a disease or condition

Specificity is the ability of a test to detect a negative result in those without a disease or condition

Positive Predictive Value (PPV) is the likelihood that when a test is positive, the patient has the disease/ condition

Negative Predictive Value (NPV) is the likelihood that when a test is positive, the patient has the disease/ condition

The P-value is the probability that a finding is due to chance

When the P-value is less than 0.05 (5%), scientists call that “statistically significant”

Statistical significance is when a finding is unlikely to be due to chance

• Positive predictive value• P-value• Sensitivity• Negative predictive value• Specificity• Significance

• Disease+, test+• Test+, disease+• Chance • Disease-, test-• Test-, disease-• Probability