School Absence Linked to Increased Risk of Child Mental Ill Health

The findings are stark. Missing just one day of school per week doubles a child’s risk of mental ill health — increasing it from 2% to 4%. While those figures may appear small at first glance, they represent a substantial rise when applied across the school population.

A two-way cycle: absence and mental health

The research also highlights a troubling “chicken and egg” relationship between school absence and mental ill health. Not only does missing school increase the likelihood of mental health difficulties, but experiencing mental ill health also makes children more likely to be absent.

In other words, once a child begins to disengage from school, the risks compound. The more school they miss, the greater their vulnerability becomes — creating a self-reinforcing cycle that can be difficult to break without timely support.

Absence is becoming normalised

Missing one day of school a week might once have been seen as cause for serious concern, but for a growing number of students, this level of absence is becoming normalised.

Charlotte O’Regan, Senior Schools Engagement Manager at the Sutton Trust — the UK’s leading social mobility charity — says the findings reflect what schools and families are already seeing on the ground.

“Poor mental health and school absence appear to be closely linked, especially for children facing additional disadvantage, such as those with SEND or growing up in poverty,” she explains.

“Mental ill health can make school feel overwhelming, forcing families to choose between the protective factors it offers — such as routine and peer support — and the risk of overwhelm causing further harm.”

This challenge is unfolding at a time when demand for support is rising, yet access remains uneven. “Too many children are still waiting too long for mental health and SEND support,” O’Regan adds, “especially those in the most deprived areas and from the poorest families.”

Severe absenteeism on the rise

While there are some encouraging signs — including a slight overall reduction in school absence in England and a decrease in ‘persistent absence’ (defined as missing 10% or more of school) — the picture is far from positive for all students.

The number of children experiencing severe absenteeism, meaning they attend school half the time or less, is growing. For these pupils, the risks are especially acute, both academically and emotionally.

Why this matters

Schools offer more than education. They provide structure, stability, social connection, and access to support services — all of which are protective factors for mental wellbeing. When children are absent for long periods, they lose access to these safeguards at precisely the moment they may need them most.

The research underlines the importance of early intervention, joined-up mental health services, and targeted support for disadvantaged families. Without this, the cycle of absence and mental ill health is likely to deepen, with long-term consequences for children’s wellbeing and life chances.

Breaking that cycle will require coordinated action — from schools, health services, policymakers, and communities — to ensure that children are supported both to attend school and to thrive while they are there.