Y is the relevant outcome measure (for instance Penta-3 coverage) C is the constant that gives the value of the outcome for the control group T1 and T2 are treatment dummy variables for group 1 (Alma Sana bracelets) and group 2 (Simple silicon bracelets) β1 and β2 will provide the difference in outcome variable between treatment one and the control group and treatment 2 and the control group respectively X is the set of possible covariates (gender, mother's education)