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Table 1 Baseline characteristics of participants stratified by trajectory of adherence to the obesogenic DP

From: Trajectories of adherence to an obesogenic dietary pattern and changes in diet quality, food intake, and adiposity during adolescence

  

Trajectory*

 

Overall

1

2

3

4

P-value

(n = 600)

(n = 44)

(n = 180)

(n = 292)

(n = 84)

Age in years, mean (SD)

12.5 (0.4)

12.6 (0.4)

12.4 (0.3)

12.5 (0.4)

12.5 (0.3)

0.071

Female, n (%)

293 (48.8)

28 (63.6)

100 (55.6)

130 (44.5)

35 (41.7)

0.002

Parental education, n (%)

 Low

91 (15.2)

10 (22.8)

21 (11.7)

43 (14.7)

17 (20.3)

0.145

 Medium

237 (39.5)

17 (38.6)

64 (35.5)

118 (40.4)

38 (45.2)

 High

272 (45.3)

17 (38.6)

95 (52.8)

131 (44.9)

29 (34.5)

Migrant background, n (%)

150 (25.0)

21 (47.7)

64 (35.6)

59 (20.2)

6 (7.1)

 < 0.001

MVPA in min/day, mean (SD)

73.3 (23.2)

70.1 (24.0)

71.9 (22.0)

73.5 (23.7)

77.3 (23.5)

0.277

Sleep time in h/day, mean (SD)

7.7 (0.9)

7.8 (0.7)

7.7 (0.9)

7.8 (1.0)

7.8 (0.9)

0.606

Smoking status, n (%)

 Never tried tobacco products

567 (94.7)

41 (93.2)

175 (97.2)

272 (93.5)

79 (94.1)

0.385

DQI-A, mean (SD)

66.1 (9.7)

70.8 (9.8)

68.6 (8.7)

65.6 (9.2)

60.2 (10.4)

 < 0.001

 Diet quality

55.5 (16.2)

65.4 (13.7)

60.0 (13.3)

54.0 (15.7)

45.9 (18.5)

 < 0.001

 Dietary diversity

88.0 (12.5)

91.7 (12.8)

89.6 (12.0)

87.9 (12.1)

83.1 (13.3)

 < 0.001

 Dietary equilibrium

54.8 (8.5)

55.3 (8.8)

56.1 (9.3)

54.9 (8.1)

51.7 (7.1)

0.001

Adiposity markers, mean (SD)

 BMI z-score

0.4 (1.0)

0.7 (0.9)

0.5 (1.0)

0.4 (0.9)

0.1 (1.0)

0.003

 WC z-score

0.3 (0.8)

0.5 (0.8)

0.4 (0.8)

0.3 (0.8)

0.1 (0.9)

0.054

 WHtR z-score

0.1 (0.9)

0.2 (0.9)

0.1 (1.0)

0.1 (0.9)

−0.1 (1.0)

0.190

 FMI z-score

0.0 (1.0)

0.3 (1.0)

0.1 (1.1)

−0.0 (0.9)

−0.3 (0.9)

0.002

  1. P-values are derived from one-way ANOVA test for continuous variables and by Cochran-Mantel–Haenszel test for ordered categorical variables
  2. BMI, body mass index; DP, dietary patterns, DQI-A, Diet Quality Index for Adolescents; FMI, fat mass index; MVPA, moderate-to-vigorous physical activity; WC, waist circumference; WHtR, waist-to-height ratio
  3. *Trajectories are ordered from lowest (1) to highest (4) adherence to the obesogenic dietary pattern over the course of the study