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

Q1. If we did not adjust for sex, how would our results be impacted?

a) The crude (unadjusted) association would overestimate the 'true' (adjusted) association

b) The crude (unadjusted) association would underestimate the 'true' (adjusted) association

c) Since sex does not act as a confounder, leaving sex unadjusted for would have no impact on our results

Please Provide Explanation:

Q2. The authors ran additional logistic regression models to examine the association between passive smoking and TB that adjusted for all of the following covariates: sex (male vs. female), age (continuous), marital status (married vs. other), educational background ( primary school (ref), junior high school, high school), body mass index (<18.5 (ref), 18.5 - 24.9, 25), and alcohol drinking (yes vs. no). Please write out the logistic regression model statement for this fully adjusted model and please write out the label for each variable.

Please Provide Explanation: