Table 1.
Sample characteristics.
Table 2.
Sleep duration, sleep timing and sleep problems by age group and sex (N = 6274).
Table 3.
Associations (indicated by regression coefficients) of weekday habitual after-school activity factors and sleep duration by school level and sex.
Table 4.
Associations (indicated by regression coefficients) of weekday habitual after-school activity factors and bedtime by school level and sex.
Table 5.
Associations (indicated by odd ratios) of weekday habitual after-school activity factors and sleep quality problems by school level.