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Table 3 Baseline characteristic of the participants randomised to the Food4Me proof-of-principle study

From: Design and baseline characteristics of the Food4Me study: a web-based randomised controlled trial of personalised nutrition in seven European countries

Demographic

Mean (SD) (%)

Total (n)

1,607

Sex—female (%)

60.9

Age (years)

39.8 (13.1)

Age range (years)

18–79

Ethnicity (%)

 White (%)

96.8

 Asia—Chinese (%)

0.7

 Blacks (%)

0.1

 Mixed (%)

1.4

 Other ethnic groups (%)

1.1

Anthropometrics

 Height (cm)

171.1 (9.4)

 Weight (kg)

74.6 (15.8)

 BMI (kg m−2)

25.5 (5.2)

 Waist circumference (cm)

85.6 (13.9)

 Hip circumference (cm)

95.4 (12.5)

Weight status (%)a

 Underweight

2.7

 Normal weight

51.1

 Overweight

30.2

 Obese

14.6

 Central obesityb

24.5

Other lifestyle factors (%)

 Current smokers

12.1

 Ex-smokers

25.4

 Non-smokers

62.5

Physical activity at workc

 Sedentary

23.0

Light to moderately active

58.4

Active

18.6

Physical activity during leisure timec

Sedentary

8.7

Light to moderately active

48.5

Active

42.8

  1. Data presented as mean (SD) for continuous variables and as a percentage (%) for categorical variables
  2. aBMI cut-off points used for weight status classification were as follows: underweight <18.5 kg m−2, normal weight ≥18.5 to ≤24.9 kg m−2, overweight ≥25 to ≤29.9 kg m−2, obese ≥30.0 kg m−2
  3. bCentral obesity was defined using waist circumference as a proxy, with sex-specific cut-off points (≥88 cm for women and ≥102 cm for men)
  4. cPhysical activity at work and during sport and leisure time was determined using the Baecke Questionnaire, and individuals were classified using the following cut-off points (sedentary <1.8, light to moderately active 1.8–2.8, active >2.8)