In simple linear regression a single independent variable is used to predict the value of a dependent variable. In multiple linear regression two or more independent variables are used to predict the value of a dependent variable. The difference between the two is the number of independent variables.
Watching for Systemic Symptoms. 1  1. Watch from swollen glands. Serious cases of cellulitis will spread beyond the initially infected region to become systemic and impact the rest of the body. 2  2. Notice if you experience fever and/or chills.
Small breaks in the skin allow for organisms to gain entrance to the dermis and multiply. In rare cases, hematogenous or metastatic seeding may occur. Patients typically report fevers, chills, pain, swelling, tenderness, erythema, and warmth. The borders of cellulitis are not elevated or sharply demarcated.