Skip to main content

Table 1 Prevalence of binge eating and compensatory behaviours by time points and gender1

From: Binge eating, purging and non-purging compensatory behaviours decrease from adolescence to adulthood: A population-based, longitudinal study

  T1 T2 T3 χ 2 for time trend (d.f. 1)
  N % n % n %  
Males 3771 46.9 1207 44 1194 43.8 -
Binge eatinga 368 13.8 79 7.9 56 6.1 49.9***
CB - purging:
Self-induced vomitinga 8 0.2 0 0.0 2 0.2 0.5ns
Taking laxatives 9 0.2 1 0.1 0 0 3.7ns
Taking diuretics 8 0.2 2 0.2 4 0.3 0.4ns
CB - non-purging:
Taking diet pillsb, c 12 0.3 3 0.2 10 0.8 4.6*
Excessive exercisea, c 430 11.7 113 9.5 162 13.6 1.4ns
Fasting 35 1.3 4 0.4 5 0.5 6.3**
Females 4273 53.1 1536 56 1530 56.2 -
Binge eating 491 16.8 60 6.9 50 5.6 95.7***
CB - purging:
Self-induced vomiting 55 1.3 27 1.8 10 0.6 2.3ns
Taking laxatives 9 0.2 7 0.5 4 0.3 0.3ns
Taking diuretics 12 0.3 6 0.4 3 0.2 0.1ns
CB - non-purging:
Taking diet pills 20 0.5 23 1.5 31 2.1 30.1***
Excessive training 602 14.3 178 11.7 143 9.4 25.9***
Fasting 25 0.8 2 0.2 1 0.1 8.1**
  1. *p < .05, **p < .01, ***p < .001, n number, ns non significant, df degrees of freedom, CB Compensatory behaviours, T1, T2, and T3 time points 1, 2 and 3, respectively
  2. 1Prevalence is assigned only to those individuals who had behaviours at least once per week.
  3. aSignificant gender differences at T1 (p < .05)
  4. bSignificant gender differences at T2 (p < .05)
  5. cSignificant gender differences at T3 (p < .05)