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Table 1 Anthropometric data of the total sample and stratified by the classification of pre-pregnancy Body Mass Index (PPBMI) in a sample of pregnant women at diagnosis of Gestational Diabetes Mellitus, Rio Grande do Sul/Brazil, 2014. [Mean±SD or Median (interquartile range) or n (%)]

From: Pre-pregnancy body mass index, weight gain and energy intake in pregnant women with gestational diabetes mellitus

    PPBMI (kg/m2)   p**
  Total (n=76) < 25 (n=21) ≥ 25 (n=25) ≥ 30 (n=30)  
Feature      
Weight gain before diagnosis (kg) 8,1 (2,2 – 11,1) 9.0 (7,6-11,1)a 9,2 (2,5-13,9)a 3,4 (0,1-9.0)b 0.002
Below the recommended 26 (34,2) 4 (19.0) 7 (28.0) 15 (50.0) 0,166
Adequate 4 (5,3) 2 (9,5) 1 (4.0) 1 (3,3)  
Above the recommended 46 (60,5) 15 (71,4) 17 (68.0) 14 (46,7)  
BMI at diagnosis (kg/m 2 ) 32,2±5,8 26,1±2.0a 30,9±3,1b 37,5±4,5c < 0.001
Low weight 1 (1,3) 1 (4,8) 0 (0) 0 (0) < 0.001
Normal weight 16 (21,1) 14 (66,7)* 2 (8.0) 0 (0)  
Overweight 22 (28,9) 6 (28,6) 14 (56.0)* 2 (6,7)  
Obesity 37 (48,7) 0 (0) 9 (36.0) 28 (93,3)*  
  1. a, b, c=mean/median significantly different between groups
  2. *=association found
  3. p**=comparison between groups
  4. BMI=Body Mass Index