Table 4 Mean (SD) measured and self-reported anthropometrics, the mean differences (SD) and p-values by sex, age, BMI status, SES, smoking status, medication use and frequency of weighing oneself

Males (N = 864)

Females (N = 434)

Body weight (kg)

96.8 (12.7)

95.4 (12.6)

1.5 (2.0)

<0.001

84.5 (12.7)

83.3 (12.4)

1.2 (1.8)

<0.001

Body height (cm)

181.5 (6.7)

182.2 (6.7)

-0.7 (1.6)

<0.001

168.2 (6.3)

168.9 (6.3)

-0.7 (1.5)

<0.001

BMI (kg/m²)

29.4 (3.1)

28.7 (3.0)

0.7 (0.8)

<0.001

29.9 (4.0)

29.2 (3.9)

0.7 (0.8)

<0.001

Waist (cm)*

104.5 (8.5)

105.9 (8.5)

-1.4 (3.3)

<0.001

95.3 (9.5)

95.5 (8.9)

-0.3 (5.2)

0.66

Low age (N = 649)

High age (N = 649)

Body weight (kg)

92.9 (14.5)

91.5 (14.2)

1.3 (2.0)

<0.001

92.6 (13.4)

91.1 (13.3)

1.5 (1.8)

<0.001

Body height (cm)

176.7 (9.5)

177.4 (9.6)

-0.7 (1.4)

<0.001

177.3 (8.6)

178.0 (8.8)

-0.7 (1.6)

<0.001

BMI (kg/m²)

29.7 (3.6)

29.0 (3.5)

0.7 (0.9)

<0.001

29.4 (3.2)

28.7 (3.1)

0.7 (0.8)

<0.001

Waist (cm)*

100.7 (10.3)

102.4 (10.2)

-1.7 (3.9)

<0.001

102.9 (9.1)

103.3 (9.4)

-0.4 (4.0)

0.21

Overweight (N = 861)

Obese (N = 437)

Body weight (kg)

87.1 (9.6)

85.9 (9.6)

1.3 (1.7)

<0.001

103.8 (14.6)

102.1 (14.4)

1.7 (2.3)

<0.001

Body height (cm)

177.3 (8.8)

177.9 (9.0)

-0.6 (1.5)

<0.001

176.5 (9.6)

177.4 (9.7)

-0.9 (1.6)

<0.001

BMI (kg/m²)

27.6 (1.3)

27.1 (1.4)

0.6 (0.7)

<0.001

33.2 (3.3)

32.4 (3.3)

0.9 (1.0)

<0.001

Waist (cm)*

97.8 (7.2)

98.9 (7.2)

-1.1 (3.9)

<0.001

109.3 (9.5)

110.2 (9.9)

-0.9 (4.2)

<0.05

Low SES (N = 513)

High SES (N = 784)

Body weight (kg)

94.0 (14.7)

92.3 (14.4)

1.7 (2.0)

<0.001

91.9 (13.4)

90.7 (13.3)

1.2 (1.8)

<0.001

Body height (cm)

176.6 (9.2)

177.4 (9.4)

-0.8 (1.6)

<0.001

177.3 (9.0)

178.0 (9.1)

-0.7 (1.5)

<0.001

BMI (kg/m²)

30.1 (3.7)

29.3 (3.6)

0.8 (0.9)

<0.001

29.2 (3.2)

28.6 (3.2)

0.6 (0.8)

<0.001

Waist (cm)*

102.1 (9.6)

102.6 (9.8)

-0.5 (4.3)

0.28

101.6 (9.9)

103.0 (9.9)

-1.5 (3.8)

<0.001

Smoking (N = 193)

Non-smoking (N = 1103)

Body weight (kg)

93.8 (14.4)

92.5 (14.2)

1.2 (2.2)

<0.001

92.6 (13.9)

91.1 (1.9)

1.4 (1.9)

<0.001

Body height (cm)

176.4 (9.3)

177.2 (9.4)

-0.8 (1.4)

<0.001

177.1 (9.0)

177.8 (9.2)

-0.7 (1.6)

<0.001

BMI (kg/m²)

30.1 (3.5)

29.4 (3.5)

0.7 (0.9)

<0.001

29.4 (3.4)

28.8 (3.3)

0.7 (0.8)

<0.001

Waist (cm)*

101.1 (9.9)

102.4 (9.9)

-1.3 (5.0)

0.13

101.9 (9.8)

102.9 (9.9)

-1.0 (3.8)

<0.001

Medication use (N = 218)

No medication use (N = 1031)

Body weight (kg)

95.6 (15.6)

94.0 (15.4)

1.6 (2.1)

<0.001

91.9 (13.4)

90.6 (13.2)

1.4 (1.9)

<0.001

Body height (cm)

176.8 (8.6)

177.6 (8.7)

-0.9 (1.4)

<0.001

177.0 (9.2)

177.7 (9.3)

-0.7 (1.6)

<0.001

BMI (kg/m²)

30.5 (3.8)

29.7 (3.7)

0.8 (0.9)

<0.001

29.3 (3.3)

28.6 (3.2)

0.6 (0.8)

<0.001

Waist (cm)*

105.2 (11.3)

106.6 (10.5)

-1.4 (3.4)

0.02

101.3 (9.5)

102.3 (9.7)

-1.0 (4.1)

<0.001

Low frequency of weighing oneself (N = 671)

High frequency of weighing oneself (N = 627)

Body weight (kg)

94.4 (14.1)

92.9 (13.9)

1.4 (2.2)

<0.001

91.0 (13.6)

89.6 (13.5)

1.4 (1.6)

<0.001

Body height (cm)

178.1 (9.0)

178.8 (9.2)

-0.7 (1.6)

<0.001

175.9 (9.0)

176.6 (9.1)

-0.7 (1.5)

<0.001

BMI (kg/m²)

29.7 (3.4)

29.0 (3.2)

0.7 (0.9)

<0.001

29.4 (3.5)

28.7 (3.4)

0.7 (0.7)

<0.001

Waist (cm)*

104.1 (9.4)

105.1 (9.2)

-1.1 (3.6)

<0.001

99.4 (9.6)

100.5 (10.0)

-1.1 (4.4)

<0.01