After analysis, the study found a relationship between Facebook addiction and the average time / student using Facebook ≥2 hours (PR=2.01; KTC95% 1.35 - 3.01), the number of friends on Facebook >500 (PR=2.03; 95% CI 1.37 - 3.01) and maternal attention to children (PR=0.63; CI 95% 0.47 - 0.85) with p <0.001.