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Fig. 3 | BMC Public Health

Fig. 3

From: Disparities in physical fitness of 6–11-year-old children: the 2012 NHANES National Youth Fitness Survey

Fig. 3

Mean Relative Handgrip Strength to Body Weight (kg/kg) by Income. N = 679 (Boys n = 334, Girls n = 345). The number within each bar indicates the least squares mean value of the group. Each error bar indicates 95% confidence interval for the mean and was estimated after controlling for child’s age. b = significant difference between middle and high (FIPR > = 350%) income groups, controlling for child’s age (p = 0.047). c = significant difference between low (FIPR < 130%) and middle (FIPR 130–349%) income groups, controlling for child’s age (p = 0.009)

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