Table 1

Description of variables explored in the analysis

IndividualPreschool mental health difficultiesTeacher-rated SDQ—Education Services routine data
SexEducation Services routine data
EthnicityEducation Services routine data
Glasgow Index of Multiple Deprivation (at preschool and Primary 3)From child’s home postcode, which is collected as part of Education Services routine data
Looked After Status (at preschool and Primary 3)Education Services routine data
SchoolReligious affiliation (denominational or non-denominational)Education Scotland
Her Majesty’s Inspectorate for education (HMIe)/Education Scotland follow-up report required (where the initial school report was unsatisfactory)Education Scotland
School pupil rollSchools census—Education Services routine data
School exclusions per 1000 pupilsSchools census—Education Services routine data
Proportion of children entitled to free school meals (a means-tested benefit when collected)Schools census—Education Services routine data
  • SDQ, Strengths and Difficulties Questionnaire.