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Background: Attention-deficit/hyperactivity disorder (ADHD) is associated with negative social and occupational outcomes across the life course. However, there has been limited population-based research that quantifies the impact of ADHD on academic achievement and academic trajectories., Aims: To compare academic performance and academic trajectories of students with ADHD with students without a mental disorder., Sample: Data were drawn from Young Minds Matter, a national population-based sample of 6,310 Australian children and adolescents aged 4-17 years. Using linked achievement test data, the academic performance and trajectories of 327 students with ADHD were compared with those of 3,916 students without a mental disorder., Methods: Survey data were combined with scores on national standardized tests for literacy and numeracy over an 8-year period., Results: In Year 3, students with ADHD were on average 1 year behind students with no mental disorder in reading and numeracy, and 9 months behind in writing. In Year 9, the gaps were much larger with students with ADHD on average 2.5 years behind in reading, 3 years behind in numeracy, and 4.5 years behind in writing., Conclusions: Students with ADHD have substantially lower achievement in reading, writing, and numeracy. Writing was the most adversely affected domain. For example, in Year 9 students with ADHD were on average writing at a Year 5 level. Children and adolescents with ADHD need substantial support to manage inattention, impulsivity, and hyperactivity. Skilled remediation in literacy and numeracy is required throughout all school years., (© 2020 The British Psychological Society.)

Serum, eye secretions, post-nasal swabs, external ear swabs and middle ear effusions (MEE) were collected from 131 Australian Aboriginal children with chronic otitis media with effusion (COME). The children were all resident in a trachoma endemic region. Chlamydia trachomatis was recovered from the MEE of 2 children. Probable bacterial pathogens were isolated from 34 (12.7%) ears. The remainder were sterile (52.4%) or contained normal skin flora (34.9%). Serum and secretions were examined by the microimmunofluorescent technique for the presence, titre and serotype of anti-chlamydial antibody. Antibody, predominantly of the C serotype, was found in a high percentage of sera (80%) and secretions (approximately 50%). This serotype is associated with ocular trachoma. It is concluded that C. trachomatis is associated with COME among some Aboriginal children in this trachoma endemic area.