Increasing socioeconomic disparities in sedentary behaviors in Chinese children.

Although children in all socio-demographic subgroups showed a decreasing trend of TV viewing, the significant interaction effects with academic year showed the decreasing rates in subgroups were significantly different (Fig. 2 ).

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Although children in all socioeconomic subgroups showed an increasing trend (Fig. 3 ), there were again significant interactions with academic year (Table 3 ).

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