I'd like to calculate the increase in qualitative disease score per risk allele. I've a cohort of 1000, and a single SNP, for each of the individuals, I've a score from 0 to 100. It was recommended that I use a linear regression model.
Can anyone elaborate on why you might use a linear regression model for this? Are there any other models that would fit this task? Suggestions on R packages I could use, are welcome.