Erratum: Kim, Y., et al. Comparison of Polar Active Watch and Waist- and Wrist-Worn ActiGraph Accelerometers for Measuring Children's Physical Activity Levels during Unstructured Afterschool Programs. Int. J. Environ. Res. Public Health 2018, 15, 2268.

Due to an error during production, the Chandler's cut-points at the 30-sec epoch length [...].

Due to an error during production, the Chandler’s cut-points at the 30-sec epoch length [1] were incorrectly presented in the published paper [2]. The corrected cut-points are as follows:

Incorrect cut-points:

Sedentary (<805), Light-intensity physical activity (805–2645), and moderate- and vigorous-intensity physical activity (≥2646).

Correct cut-points:

Sedentary (<966), Light-intensity physical activity (966–3174), and moderate- and vigorous-intensity physical activity (≥3175).

These changes do not influence the results, discussion, or conclusions. The authors would like to apologize for any inconvenience caused to the readers by this error.