Table 1.
Definition and assignment of health-risk behaviors.
Table 2.
Population distribution and responses of SYHBS in 2004, 2012, and 2019.
Table 3.
Sociodemographic characteristics of study population by perceived academic performance.
Table 4.
Distribution of health-risk behaviors among study population (%).
Table 5.
Association between exposure to health-risk behaviors and perceived academic performance in adolescents of three surveys.