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Table 3 ANCOVA results for rating groups of binge eating and compensatory behaviours on measures of general eating and psychosocial problems 1

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

Variables Binge eating without CB
(n = 726)
Binge eating with CB
(n = 133)
Purging CB
(n = 56)
Non-Purging CB
(n = 624)
NoS
(n = 4016)
ANCOVA
  Mean (s.d.) Mean (s.d.) Mean (s.d.) Mean (s.d.) Mean (s.d.) F (d.f. 4)
BMI 21.40(4.80) 21.78(2.83) 21.86(3.04) 22.03(2.77) 21.38(4.81) 5.26**
Appearance satisfaction 3.47(0.64) 3.29(0.75) 2.82(0.88) 3.37(0.69) 3.52(0.64) 16.98***
Anxiety symptoms 1.46(0.49) 1.64(0.58) 1.98(0.73) 1.53(0.51) 1.45(0.46) 14.29***
Depressive symptoms 1.78(0.59) 2.02(0.74) 2.36(0.74) 1.85(0.64) 1.74(0.59) 16.75***
Self-worth 2.56(0.33) 2.48(0.38) 2.54(0.47) 2.54(0.34) 2.57(0.32) 2.52*
Alcohol consumption 2.67(1.64) 2.77(1.63) 3.40(1.58) 2.86(1.63) 2.79(1.66) 5.60**
EAT-12 1.55(0.35) 1.88(0.44) 2.43(0.63) 1.85(0.41) 1.54(0.36) 184.67***
BITE-30 1.49(0.39) 1.65(0.52) 2.17(0.59) 1.71(0.43) 1.50(0.41) 61.79***
Relationship to parents:       
Overprotection 2.03(0.58) 2.01(0.60) 2.09(0.69) 2.04(0.59) 2.01(0.57) 0.41ns
Care 3.09(0.56) 3.07(0.58) 2.72(0.67) 3.07(0.58) 3.08(0.57) 5.69**
Instability of self-concept 2.48(0.73) 2.69(0.74) 2.91(0.70) 2.65(0.70) 2.43(0.72) 16.06***
Social support 3.48(0.46) 3.49(0.51) 3.41(0.52) 3.47(0.48) 3.46(0.46) 0.56ns
Loneliness 1.81(0.56) 1.91(0.58) 2.17(0.69) 1.84(0.56) 1.83(0.56) 4.52*
Age (not controlled for covariates) 17.12(1.93) 16.91(1.91) 17.26(2.06) 16.92(2.01) 17.16(1.92) 2.63*
  1. *p < .05, **p < .01, ***p < .001; ns non-significant, SD standard deviation, df degree of freedom, BMI body mass index, EAT-12 Eating Attitude Test, BITE Bulimic Investigatory Test, Edinburgh; BMI body mass index, EAT-12 Eating Attitude Test, CB compensatory behaviours; NoS - individuals who did not report either binge eating or compensatory behaviours
  2. ANCOVA - Analysis of Covariance with age and gender as covariates
  3. 1Results are based on data from the first time point only (T1: 14-22 years of age)