During 2013–2015, 3.9% of boys and 4.3% of girls missed >10 school days in the past 12 months because of illness or injury.
Among children aged 15–17 years, girls were more likely than boys to miss >10 school days (6.8% compared with 3.9%).
Among girls, those aged 15–17 years were more likely than girls aged 5–10 years and girls aged 11–14 years to miss >10 school days (6.8% compared with 3.2% and 4.0%, respectively).
Among boys, there was no difference by age.