Modeling the effect of height and weight on arthritis logit arthritis c.age i.female i.ed3cat height weight The question Does height "by itself" increase the probability of arthritis? The problem 1. Height and weight are linked. 2. Increasing height, holding weight constant is not the question. 3. Allow height to increase and let weight increase a corresponding amount. The type of problem has many applications. Estimate the model . sysuse svyhrs3, clear . svyset secu [pweight=kwgtr], strata(stratum) /// > vce(linearized) singleunit(missing) . svy: logit arthritis c.age i.female i.ed3cat height weight
Modeling the effect of height and weight on arthritis logit arthritis c.age i.female i.ed3cat height weight The question Does height "by itself" increase the probability of arthritis? The problem 1. Height and weight are linked. 2. Increasing height, holding weight constant is not the question. 3. Allow height to increase and let weight increase a corresponding amount. The type of problem has many applications. Estimate the model . sysuse svyhrs3, clear . svyset secu [pweight=kwgtr], strata(stratum) /// > vce(linearized) singleunit(missing) . svy: logit arthritis c.age i.female i.ed3cat height weight