1. Cumulative risk over the early life course and its relation to academic achievement in childhood and early adolescence Ragnarsdottir, Laufey Dís; Kristjansson, Alfgeir L.; Thorisdottir, Ingibjorg E.; Allegrante, John P.; Valdimarsdottir, Heiddis; Gestsdottir, Steinunn; Sigfusdottir, Inga Dora 2020 Articles Academic achievementChild developmentChildren--Family relationshipsChildren--Health and hygieneRisk
2. Maternal smoking during pregnancy and academic achievement of offspring over time: A registry data-based cohort study Kristjansson, Alfgeir L.; Thomas, Sabena; Lilly, Christa L.; Thorisdottir, Ingibjorg E.; Allegrante, John P.; Sigfusdottir, Inga Dora 2020 Articles Academic achievementChild developmentPrenatal influencesPregnant women--Tobacco useCohort analysis
3. Maternal smoking during pregnancy and scholastic achievement in childhood: evidence from the LIFECOURSE cohort study Kristjansson, Alfgeir L.; Thorisdottir, Ingibjorg E.; Allegrante, John P.; Lilly, Christa L.; Sigfusdottir, Inga Dora 2017 Articles Academic achievementChild developmentPrenatal influencesPregnant women--Tobacco useCohort analysis
4. Sport Participation and Academic Achievement: A Longitudinal Study Dyer, Angela M.; Kristjansson, Alfgeir L.; Mann, Michael J.; Smith, Megan L.; Allegrante, John P. 2017 Articles School sportsAcademic achievementTeenagersHealth behavior in adolescence