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1“... use and prevention, particularly with regard to peer influences. This study sought to add to a growing...”
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2“... the relationship and relative importance of a broad spectrum of social variables in adolescent smoking in Iceland...”
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3by Kristjansson, Alfgeir L., Thomas, Sabena, Lilly, Christa L., Thorisdottir, Ingibjorg E., Allegrante, John P., Sigfusdottir, Inga Dora“...%). Latent growth modeling showed that MSDP influenced Icelandic achievement scores, standardized to a range...”
Published 2020
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4A multi-level developmental approach towards understanding adolescent mental health and behaviour...by Halldorsdottir, Thorhildur, Kristjansson, Alfgeir L., Asgeirsdottir, Bryndis Bjork, Thorisdottir, Ingibjorg E., Sigfusson, Jon, Jonsdottir Tolgyes, Erla Maria, Valdimarsdottir, Heiddis, Allegrante, John P., Sigfusdottir, Inga Dora“..., and anticipated outcomes of the LIFECOURSE study, a multi-level, bio-psychosocial prospective study designed...”
Published 2020
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5by Thorisdottir, Ingibjorg E., Asgeirsdottir, Bryndis Bjork, Kristjansson, Alfgeir L., Valdimarsdottir, Heiddis, Jonsdottir Tolgyes, Erla Maria, Sigfusson, Jon, Allegrante, John P., Sigfusdottir, Inga Dora, Halldorsdottir, Thorhildur“...Background: Adolescence represents a crucial developmental period in shaping mental health...”
Published 2021
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6by Allegrante, John P.“...Iceland has witnessed a dramatic decline in adolescent substance use that may be partly the result...”
Published 2021
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7“...-users). STUDY DESIGN: It is a population-based, cross-sectional, school survey with all accessible 13...”
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8by Sigfusdottir, Inga, Kristjansson, Alfgeir, Thorlindsson, Thorolfur, Allegrante, John P.“... use was at a peak in 1998, with almost 23% having reported daily smoking, 42% having reported becoming...”
Published 2008
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9by Halldorsdottir, Thorhildur, Thorisdottir, Ingibjorg E., Meyers, Caine C. A., Asgeirsdottir, Bryndis Bjork, Kristjansson, Alfgeir L., Valdimarsdottir, Heiddis, Allegrante, John P., Sigfusdottir, Inga Dora“...: Although both boys and girls appeared affected, girls reported a greater negative impact across all...”
Published 2021
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10by Kristjansson, Alfgeir L., Allegrante, John P., Sigfusson, Jon, Sigfusdottir, Inga Dora“..., 9th, and 10th grade students, and the combined sample, revealed a consistent pattern: prevalence...”
Published 2019
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11by Kristjansson, Alfgeir L., Thorisdottir, Ingibjorg E., Allegrante, John P., Lilly, Christa L., Sigfusdottir, Inga Dora“... the impact of MSDP on scholastic achievement in a birth cohort of children in 4th, 7th and 10th grades...”
Published 2017
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12by Kristjansson, Alfgeir L., Mann, Michael J., Sigfusson, Jon, Thorisdottir, Ingibjorg E., Allegrante, John P., Sigfusdottir, Inga Dora“...This is the second in a two-part series of articles about the Icelandic Model for Primary...”
Published 2020
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13by Kristjansson, Alfgeir L., Mann, Michael J., Sigfusson, Jon, Thorisdottir, Ingibjorg E., Allegrante, John P., Sigfusdottir, Inga Dora“...Adolescent substance use--the consumption of alcohol, tobacco, and other harmful drugs--remains a...”
Published 2020
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14by Ragnarsdottir, Laufey Dís, Kristjansson, Alfgeir L., Thorisdottir, Ingibjorg E., Allegrante, John P., Valdimarsdottir, Heiddis, Gestsdottir, Steinunn, Sigfusdottir, Inga Dora“... factors during the early life course and subsequent academic achievement in a cohort of children...”
Published 2020
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