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    Development of an imputation model to recalibrate birth weights measured in the early neonatal period to time at delivery and assessment of its impact on size-for-gestational age and low birthweight prevalence estimates: a secondary analysis of a pregnancy cohort in rural Nepal by Joanne Katz, James M Tielsch, Luke C Mullany, Diwakar Mohan, Subarna K Khatry, Seema Subedi, Scott L Zeger, Elizabeth A Hazel

    Published 2022-07-01
    “…We aimed to develop an imputation model that predicts the ‘true’ birth weight at time of delivery.Design We developed and applied a model that recalibrates weights measured in the early neonatal period to time=0 at delivery and uses those recalibrated birth weights to impute missing birth weights.Setting This is a secondary analysis of pregnancy cohort data from two studies in Sarlahi district, Nepal.Participants The participants are 457 babies with daily weights measured in the first 10 days of life from a subsample of a larger clinical trial on chlorhexidine (CHX) neonatal skin cleansing and 31 116 babies followed through the neonatal period to test the impact of neonatal massage oil type (Nepal Oil Massage Study (NOMS)).Outcome measures We developed an empirical Bayes model of early neonatal weight change using CHX trial longitudinal data and applied it to the NOMS dataset to recalibrate and then impute birth weight at delivery. …”
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    Protocol of the TransformUs SecondaryTeachers’ perceptions of the program reach, effectiveness,adoption, implementation and maintenance schools program: a type II hybrid implementation-effectiveness trial to increase adolescents’ physical activity and reduce sedentary time in secondary schools by Harriet Koorts, Anna Timperio, Jo Salmon, David Revalds Lubans, Gavin Abbott, Nicola D Ridgers, Natalie Lander, Ana María Contardo Ayala, Emiliano Mazzoli

    Published 2025-02-01
    “…Primary outcomes include adolescents’ physical activity and sedentary time (assessed with accelerometry), and secondary outcomes include health (sleep and well-being), class and school engagement (on-task behaviour assessed via classroom observation and school attendance) and sitting time (assessed with posture monitors). …”
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