TB Patients	Healthy Controls
Passive Smoking
Yes	122	104
No	85	114

Q1. Hypothetically, a survey conducted on all Human residents between 2010 and 2015 (prior to the initiation of the case-control study). Each resident was asked about past and current exposure to second-hand smoke. The authors decided to use this information of passive smoking instead of what participants reported in the case-control study questionnaire. In this scenario, what type of misclassification (for passive smoking), if any, do you anticipate is most likely to occur?

a) I do not anticipate any misclassification occurring

b) Non-differential misclassification of disease

c) Non-differential misclassification of exposure

d) Differential misclassification of disease

e) Differential misclassification of exposure

Please Provide Explanation:

Q2. You learn that the OR for the association between passive smoking and TB after adjusting for sex was 1.72. Please evaluate whether sex was a confounder using the 10% change guideline.

Please Provide Explanation: