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Table 2 Male Body Attitudes Survey [MBAS] scores by age

From: Relationships between body image, nutritional supplement use, and attitudes towards doping in sport among adolescent boys: implications for prevention programs

  12 year olds and under (n = 176) 13 year olds (n = 262) 14 year olds (n = 286) 15 year olds (n = 215) 16 year olds and over (n = 205) Total group (n = 1148 ) ANOVA
  Mean [ SD] Mean [ SD] Mean [ SD] Mean [ SD] Mean [ SD] Mean [ SD]  
MBAS height (Score out of 12) 6.25 [3.05] 6.41 [2.83] 6.27 [2.78] 5.91 [2.67] 6.49 [2.78] 6.26 [2.82] F(4,1101) = 1.32
MBAS fat (score out of 48) 19.72 [8.75] 19.34 [8.28] 19.56 [8.31] 19.12 [8.42] 19.18 [8.77] 19.40 [8.45] F(5,1002) = 0.64
MBAS muscle (score out of 60) 25.81 [9.85] 26.72 [9.91] 27.17 [9.70] 28.37 [9.20] 31.30 [10.55] 27.64 [9.91] F(4, 993) = 9.79***
MBAS total score (score out of 144) 62.61 [22.18] 61.52 [20.01] 62.67 [20.50] 64.17 [20.27] 67.06 [21.82] 63.31 [20.84] F(4, 888) = 3.79**
  1. Note: **p < 0.01; ***p < 0.001.