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As screens become even more embedded in the everyday lives of young children, understanding the predictors of screen time becomes increasingly important. Our study investigated the predictors of total screen time on a weekday for children at two years of age using data from the Growing Up in New Zealand longitudinal (GUiNZ) study. Our selection of variables was informed by previous research into the predictors of screen time for children aged up to three years, as well as the wider literature on parenting and children's media exposure. We hypothesised that parenting behaviours related to the home media environment would be the most important variables overall. These included coviewing, exposure of children to adult-directed content, TV environment and rules restricting the amount of time that children can spend watching TV, DVD or video. A model including mother, partner and child variables (N = 3081) was tested using GLM Poisson regression in SPSS. Results demonstrated that children's higher use of screen media on a weekday was significantly associated with exposure to a moderate to high or heavy TV environment compared to a low TV environment, exposure to adult-directed TV or DVDs, having no rules about how much time the child can spend viewing TV or videos or DVDs, the child being of Asian ethnicity compared to European ethnicity, and the child not attending childcare regularly. Higher coviewing with the child was significantly negatively, or inversely, associated with screen time. We consider practice implications for children's screen time, study limitations, and recommendations for future research. Highlights: Multiple modifiable screen media parenting practices predicted two-year-olds' weekday screen time. TV environment and viewing adult-directed content were particularly strong predictors of two-year-olds' screen time. Our findings are based on a comprehensive measure of screen time, not only TV viewing. Data provided by fathers as well as mothers were utilised in the current study. [ABSTRACT FROM AUTHOR]

Objectives This study aimed to determine which steps in the newborn screening collection and delivery processes contribute to delays and identify strategies to improve timeliness. Methods Data was analyzed from infants (N = 94,770) who underwent newborn screening at 83 hospitals in Michigan between April 2014 and March 2015. Linear mixed effects models estimated effects of hospital and newborn characteristics on times between steps in the process, whereas simulation explored how to improve timeliness through adjustments to schedules for the state laboratory and for specimen pickup from hospitals. Results Time from collection to receipt of arrival to the state laboratory varied greatly with collection timing (P < 0.001), with specimens collected on Friday or Saturday delayed an average of 9-12 h compared to other specimens. Simulation estimates shifting specimen pickup from 6 p.m. Sunday-Friday to 9 p.m. Sunday-Friday could lead to an additional 12.6% of specimens received by the Michigan laboratory within 60 h of birth. Conclusions for Practice The time between when a specimen is collected and received by the laboratory can be a significant bottleneck in the newborn screening process. Modifying hospital pickup schedules appears to be a simple way to improve timeliness. [ABSTRACT FROM AUTHOR]