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Table 2 Means and differences of total and regional body fatness from 18 to 22 years of age according to sex

From: Evolution of total body and regional adiposity from late adolescence to early adulthood in a birth cohort study

  18 years 22 years p-valuea Difference (22 years – 18 years) p-valueb
Mean (95% CI) Mean (95% CI) Mean (CI95%)
Fat mass index (Kg/m 2 )    < 0.001   0.196
 Male 4.2 (4.1; 4.4) 5.6 (5.4; 5.7)   1.4 (1.3; 1.5)  
 Female 8.4 (8.3; 8.6) 9.9 (9.7; 10.1)   1.5 (1.4; 1.6)  
Android fat mass (%)    < 0.001   < 0.001
 Male 8.2 (8.1; 8.3) 9.1 (9.0; 9.2)   1.0 (0.9; 1.0)  
 Female 7.6 (7.5; 7.7) 7.8 (7.7; 7.9)   0.2 (0.2; 0.3)  
Gynoid fat mass (%)    < 0.001   < 0.001
 Male 21.4 (21.3; 21.6) 20.6 (20.4; 20.7)   -0.9 (−1.0; − 0.8)  
 Female 21.2 (21.0; 21.3) 20.9 (20.8; 21.0)   − 0.3 (− 0.4; − 0.2)  
Waist circumference (cm)    < 0.001   0.030
 Male 84.5 (84.1; 85.0) 87.0 (86.4; 87.6)   2.7 (2.3; 3.0)  
 Female 81.9 (81.5; 82.3) 84.9 (84.3; 85.5)   3.2 (2.9; 3.5)  
Hip circumference (cm)    0.508   0.058
 Male 99.4 (99.0; 99.8) 100.9 (100.5; 101.4)   1.6 (1.3; 1.8)  
 Female 102.2 (101.8; 102.6) 104.1 (103.6; 104.6)   2.0 (1.7; 2.3)  
Thigh circumference (cm)    0.032   0.001
 Male 55.5 (55.3; 55.8) 57.2 (56.9; 57.5)   1.7 (1.5; 1.8)  
 Female 56.3 (56.0; 56.6) 58.5 (58.1; 58.8)   2.2 (2.0; 2.5)  
  1. CI95% = 95% confidence interval
  2. ap-values are displayed from repeated-measures ANOVA
  3. bp-values are displayed from the interaction between sex and age in the repeated-measures ANOVA