本人之前基本上用spss比较多，sas接触比较少，最近读了几篇外文文献，想请问关于其中parsimonious model的问题。
    parismonious model是线性模型中的一种，多用于单变量线性回归吗？
    parismonious model可以控制对自变量、因变量都有影响的，但是我们不关注的变量影响吗？
   Fully adjusted models又是在parismonious model上的校正模型吗？他与pm有什么区别呢？对无关变量的控制有没有区别呢？
   

Parsimoniousmodels were adjusted a priori forage, sex, race (African American vs. non-African American) and education (didnot graduate high school, high school graduate and/or 1 year of college, 2+years of college). Fully adjusted models were further adjusted for cause ofESRD, dialysis vintage, BMI, history of smoking, history of cardiovasculardisease, hematocrit and albumin.