Skip to main content

Table 1 Characteristics of study participants across categories of whole-day water intake and intra-meal fluid consumption1

From: Water intake and intra-meal fluid consumption in relation to general and abdominal obesity of Iranian adults

 

Whole-day water intake (glass/d)

Intra-meal fluid consumption (glass/d)

< 2

2–5

6–8

> 8

P-value2

< 1

1–2

3–4

> 4

P-value2

Age, y

38.0 ± 7.90

36.8 ± 8.23

36.01 ± 8.45

36.62 ± 8.98

< 0.001

37.0 ± 8.14

36.8 ± 8.43

35.0 ± 9.02

36.9 ± 6.55

0.01

Female, %

64.0

59.6

57.2

58.0

< 0.001

61.6

57.8

53.2

46.3

< 0.001

Married, %

81.5

83.0

84.3

83.6

0.29

82.5

83.8

81.5

94.3

0.09

University graduated, %

61.7

60.7

58.0

58.5

0.25

60.6

60.0

50.3

56.6

0.07

Home ownership, %

67.1

68.2

69.3

69.5

0.70

68.1

68.7

65.0

66.7

0.82

Physically active, %

34.1

33.3

34.2

32.0

0.86

32.9

34.6

40.7

32.0

0.16

Meal regularity (always), %

12.0

14.6

17.3

24.0

< 0.001

15.3

13.4

13.0

18.9

< 0.001

Number of meals (3 meals/day), %

60.3

68.6

71.0

68.3

< 0.001

67.1

67.5

70.2

62.2

0.72

Quick eating of lunch (< 10 min), %

20.2

14.0

13.0

17.4

< 0.001

15.6

15.5

15.3

18.9

0.001

Quick eating of dinner (< 10 min), %

28.3

22.0

20.6

21.8

< 0.001

24.6

21.5

18.6

25.7

< 0.001

Breakfast skippers, %

76.6

76.9

76.3

74.0

0.74

23.7

22.0

27.4

32.1

0.13

Dietary intakes

 Energy (kcal/d)

2340 ± 824

2373 ± 834

2388 ± 843

2382 ± 810

0.45

2362 ± 835

2377 ± 820

2415 ± 848

2355 ± 899

0.82

 Protein (g/d)

87.4 ± 33.3

88.5 ± 33.9

89.2 ± 34.7

88.4 ± 32.7

0.53

88.1 ± 34

88.5 ± 33

91.8 ± 37.6

87.8 ± 35.6

0.59

 Carbohydrate (g/d)

286.4 ± 116

290.1 ± 116

291.2 ± 117

290.2 ± 113

0.68

288.8 ± 116

290.3 ± 114

291.7 ± 121

287.4 ± 124

0.96

 Fat (g/d)

97.7 ± 36.9

99.3 ± 37.9

100.1 ± 38.3

100.4 ± 37.3

0.31

98.8 ± 37.7

99.5 ± 37.2

101.6 ± 38.8

98.5 ± 42.5

0.75

 Dietary fibre (g/d)

22.2 ± 9.8

22.5 ± 9.7

22.7 ± 10.1

22.4 ± 9.2

0.54

22.5 ± 9.8

22.4 ± 9.6

22.7 ± 10.5

22.2 ± 9.6

0.98

  1. 1Data are mean ± standard deviation (SD) or percent
  2. 2Obtained from ANOVA or chi-square test, where appropriate