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Table 2 Adjusted mean relative differences, compared to baseline BMI subgroup (BMI <25 kg/m2), between general practionners’ anthropometric measurements and the gold standard based on multiple linear regression model and compared with a nonparametric test for trend across ordered groups

From: Accuracy of anthropometric measurements by general practitioners in overweight and obese patients

Characteristics Adjusted mean relative differences (%)a p-value 95% CI p-value for trend
Weight [kg]
 BMI subgroup     0.859
  25–29.9 kg/m2 0.46 0.002 0.17 to 0.75  
   ≥ 30 kg/m2 0.91 <0.001 0.45 to 1.38  
Height [cm]
 BMI subgroup     0.325
  25–29.9 kg/m2 0.11 0.16 −0.04 to 0.26  
   ≥ 30 kg/m2 0.01 0.10 −0.18 to 0.18  
BMI [kg/m2]     0.605
 BMI subgroup     
  25–29.9 kg/m2 1.23 <0.001 0.71 to 1.74  
   ≥ 30 kg/m2 2.23 <0.001 1.28 to 3.18  
Waist circumference [cm]     0.077
 BMI subgroup     
  25–29.9 kg/m2 3.59 <0.001 2.38 to 4.80  
   > =30 kg/m2 6.69 <0.001 4.78 to 8.61  
Hip circumference [cm]     0.242
 BMI subgroup     
  25–29.9 kg/m2 2.58 <0.001 1.59 to 3.58  
   ≥ 30 kg/m2 7.37 <0.001 5.85 to 8.90  
Waist-to-hip ratio     0.002
 BMI subgroup     
  25–29.9 kg/m2 5.45 <0.001 3.90 to 6.99  
   ≥ 30 kg/m2 8.20 <0.001 6.30 to 10.11  
  1. N = 509 participants measured by 26 GPs
  2. aUsing multiple linear regression, adjusting for visit (before/after training) and group (intervention/control)