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Table 1 Mean weight (kg) and BMI by age and gender

From: Changes in body mass index by age, gender, and socio-economic status among a cohort of Norwegian men and women (1990–2001)

  

Mean (SD)

 

Mean (SD)

Mean change (SD)

  

1990

 

2001

1990–2001¶

 

N

Weight (kg)

BMI

 

Weight (kg)

BMI

Weight (kg)

BMI

Men

   

Men

    

   20–29

123

76.0 (10.9)

23.6 (2.9)

   20–29

84.0 (13.9)

26.1 (3.9)

8.0 (8.6)

2.5 (2.5)

   30–39

176

80.0 (11.2)

24.4 (2.9)

   30–39

85.9 (12.6)

26.2 (3.3)

5.9 (5.5)

1.8 (1.7)

   40–49

135

81.5 (10.9)

25.2 (2.7)

   40–49

86.0 (12.3)

26.6 (3.2)

4.5 (6.1)

1.4 (1.9)

   50–66

109

80.1 (10.4)

25.5 (3.4)

   50–66

82.9 (11.9)

26.4 (3.8)

2.8 (7.2)

0.9 (2.3)

   67–79

38

77.7 (11.4)

25.4 (3.4)

   67–79

78.6 (11.5)

25.7 (3.6)

0.9 (6.7)

0.3 (2.1)

Total

581

79.4 (11.1)

24.7 (3.0)

Total

84.5 (12.7)

26.3 (3.5)

5.1 (7.1)

1.6 (2.2)

Women

   

Women

    

   20–29

148

61.7 (11.3)

21.8 (3.5)

   20–29

68.6 (13.0)

24.2 (4.0)

6.9 (7.5)

2.4 (2.7)

   30–39

189

61.5 (8.7)

22.1 (2.7)

   30–39

67.0 (10.4)

24.0 (3.4)

5.5 (5.4)

2.0 (1.9)

   40–49

123

64.7 (10.7)

23.5 (3.7)

   40–49

70.0 (11.9)

25.5 (4.3)

5.3 (7.1)

2.0 (2.6)

   50–66

104

65.5 (12.2)

24.3 (4.0)

   50–66

67.7 (12.0)

25.1 (4.0)

2.2 (6.3)

0.9 (2.3)

   67–79

24

68.0 (12.4)

25.4 (3.8)

   67–79

67.0 (12.0)

25.1 (3.7)

-1.0 (4.5)

-0.3 (1.7)

Total

588

63.2 (10.7)

22.8 (3.6)

Total

68.1 (11.8)

24.6 (3.9)

5.0 (6.8)

1.8 (2.4)

  1. BMI, body mass index; kg, kilograms.
  2. ¶ Age at year 2001 used in formula.