TABLE 2

Trends in WC and WHtR Among US Children and Adolescents Aged 2–18 y, NHANES 2003–2004 to 2011–2012

2003–20042005–20062007–20082009–20102011–2012Absolute IncreaseP for Trend
MeanSEMeanSEMeanSEMeanSEMeanSE
WC, cm
 All69.140.5468.550.5968.520.6768.600.3168.970.40−0.16.53
 Age group
  2–5 y51.920.2451.580.2151.400.2551.590.2951.490.20−0.43.69
  6–11 y65.480.4964.030.5965.140.5064.300.2664.930.56−0.54.06
  12–18 y80.490.7780.580.5580.380.7480.900.4681.510.691.03.45
 Gender
  Male69.290.6568.600.7368.740.7668.570.5568.370.54−0.92.75
  Female68.970.5668.490.5968.290.8468.620.3069.580.610.61.59
 Race or ethnicity
  Non-Hispanic white70.150.7468.980.9369.200.8468.660.5669.520.83−0.63.52
  Non-Hispanic black67.810.5667.940.7467.630.6169.610.7167.701.05−0.11.39
  Mexican American69.070.8269.490.7968.570.8069.380.6770.060.620.99.48
WHtR
 All0.4900.0030.4870.0020.4890.0020.4880.0010.4920.0020.002.52
 Age group
  2–5 y0.5050.0020.5060.0020.5040.0020.5050.0020.5040.002−0.001.76
  6–11 y0.4840.0030.4770.0030.4820.0020.4760.0020.4810.004−0.003.04
  12–18 y0.4870.0050.4870.0030.4860.0040.4880.0020.4950.0040.008.54
 Gender
  Male0.4850.0030.4810.0020.4840.0030.4830.0020.4840.003−0.001.86
  Female0.4960.0040.4940.0030.4940.0030.4930.0020.5000.0040.004.51
 Race or ethnicity
  Non-Hispanic white0.4910.0040.4850.0030.4880.0040.4830.0020.4900.004−0.001.36
  Non-Hispanic black0.4790.0030.4790.0040.4790.0020.4870.0030.4820.0050.003.40
  Mexican American0.5030.0030.5110.0040.5090.0050.5080.0020.5090.0030.006.59
  • Time trends in mean WC and WHtR from 2003–2004 to 2011–2012 were examined with a multiple linear regression model, with adjustment for age, gender, and race or ethnicity, when applicable.