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Fig. 2 | BMC Public Health

Fig. 2

From: Time outdoors positively associates with academic performance: a school-based study with objective monitoring of outdoor time

Fig. 2

Non-linear association between comprehensive academic performance and time spent on different types of daily activity modeled using the P-Spline method. The fitted curves of academic performance ranking against (A) Outdoor time, B Sleep duration, C Out-of-school learning time and (D) Extracurricular class are shown in red and their 95% prediction interval are shown in blue

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BMC Public Health

ISSN: 1471-2458

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