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Table 1 Eating disorder symptoms and body mass index by time, for male participants (n = 680)

From: Eating disorder symptom trajectories in adolescence: effects of time, participant sex, and early adolescent depressive symptoms

 

14 yrs

17 yrs

20 yrs

p

Body mass index (M [SD])

20.91a (3.91)

22.74b (4.17)

24.45c (4.59)

<.001

Global symptoms (M [SD])

0.33a (0.35)

0.30b (0.40)

0.31b (0.38)

<.001

Objective binge eating (% yes)

23.6%a (n = 160)

15.0%b (n = 102)

17.2%b (n = 117)

<.001

Purging (% yes)

1.2% (n = 8)

2.5% (n = 17)

2.7% (n = 18)

.123

Fasting (% yes)

9.7% (n = 66)

8.5% (n = 58)

8.1% (n = 55)

.502

Dietary rules (% yes)

21.4%a (n = 145)

16.2%b (n = 110)

21.1%a (n = 143)

<.001

Hard exercise (% yes)

49.0% (n = 333)

46.5% (n = 316)

50.8% (n = 345)

.500

  1. Note. Global symptoms refer to a global index of dietary restraint and eating, weight and shape concerns.
  2. p values and column subscripts denote significant differences over time, as identified through generalised estimating equations or linear mixed models. Columns with different subscripts differ significantly at p < .05.
  3. a,b,c indicate significant differences over time.