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. Author manuscript; available in PMC: 2013 Aug 16.
Published in final edited form as: Eur Eat Disord Rev. 2012 Sep 5;21(1):52–59. doi: 10.1002/erv.2201

Table 3. Means and standard deviations of silhouette scores (current, preferred, discrepancy) for each age group by BMI group.

BMI Group1 Age groups

25-34 (n = 1873) 35-44 (n = 1943) 45-542 (n = 758) 55-54 (n = 947) 65-74 (n = 290) 75+ (n = 57) Linear trend analysis

M (SD) M (SD) M (SD) M (SD) M (SD) M (SD) p-value
Current Silhouette
 Underweight 3.13 (0.70) 2.79 (1.10) 2.82 (0.75) 2.60 (1.24) 2.50 (0.71) n/a .26
 Normal 4.26 (0.91) 4.37 (0.99) 4.29 (1.02) 4.42 (1.01) 4.36 (0.97) 4.18 (1.18)
 Overweight 5.54 (0.83) 5.70 (0.98) 5.68 (0.94) 5.75 (0.86) 5.60 (0.87) 5.92 (1.00)
 Obese 7.17 (1.15) 7.16 (1.12) 7.32 (1.10) 7.29 (1.07) 7.10 (1.17) 8.00 (1.41)
Preferred Silhouette
 Underweight 3.31 (0.72) 3.31 (0.89) 2.73 (0.65) 2.80 (0.94) 3.00 (<0.01) n/a .03
 Normal 3.43 (0.66) 3.35 (0.75) 3.42 (0.75) 3.51 (0.66) 3.53 (0.72) 3.57 (0.68)
 Overweight 3.84 (0.60) 3.82 (0.71) 3.95 (0.60) 4.02 (0.61) 4.17 (0.74) 4.42 (1.44)
 Obese 4.34 (0.74) 4.24 (0.74) 4.36 (0.78) 4.49 (0.73) 4.45 (0.65) 4.40 (1.14)
Discrepancy Score
 Underweight 0.77 (0.75) 0.97 (0.87) 0.64 (0.50) 0.73 (0.70) 0.50 (0.71) n/a .94
 Normal 0.99 (0.66) 1.14 (0.81) 1.00 (0.80) 0.97 (0.73) 0.88 (0.67) 0.81 (0.68)
 Overweight 1.72 (0.77) 1.88 (0.84) 1.73 (0.79) 1.73 (0.69) 1.43 (0.68) 1.50 (0.90)
 Obese 2.83 (1.10) 2.92 (1.08) 2.96 (1.11) 2.79 (1.03) 2.66 (1.13) 3.60 (1.34)

Abbreviation: BMI, body mass index; n/a, not applicable.

1

BMI groups defined by the CDC: < 18.5 underweight; 18.5-24.9 normal weight; 25-29.9 overweight; ≥ 30 obese.

2

Missing data for women aged 46-49 years; neither UNC-SELF nor GABI recruited women in this age range.