Table 1.
Sample descriptive statistics summarized by treatment type and timepoint, including results of mixed effects models assessing symptom intensity changes from pretreatment to posttreatment
| CBT N = 236 |
IPT N = 156 |
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| n (%) or M (SD) | n (%) or M (SD) | |||||||
|
| ||||||||
| Sex | ||||||||
| Male | 41 (17.4) | 25 (16.0) | ||||||
| Female | 195 (82.6) | 131 (84.0) | ||||||
| Race and ethnicity | ||||||||
| White | 212 (89.8) | 132 (84.6) | ||||||
| African American | 14 (5.9) | 16 (10.3) | ||||||
| Native American | 2 (0.8) | 1 (0.6) | ||||||
| Hispanic | 6 (2.5) | 7 (4.5) | ||||||
| Additional racial/ethnic identity* | 2 (0.8) | 0 (0) | ||||||
| Education | ||||||||
| Some high school or less | 5 (2.1) | 1 (0.6) | ||||||
| High school graduate or GED | 24 (10.2) | 21 (13.5) | ||||||
| Some college | 74 (31.4) | 45 (28.8) | ||||||
| College graduate | 86 (36.4) | 28 (17.9) | ||||||
| Graduate degree | 44 (18.6) | 59 (37.8) | ||||||
| Not reported | 3 (1.3) | 2 (1.3) | ||||||
| Age | 44.9 (9.82) | 46.72 (10.55) | ||||||
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| ||||||||
| CBT | IPT | |||||||
|
|
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| Pre | Post | Pre | Post | |||||
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|
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| M (SD) | M (SD) | t | p | M (SD) | M (SD) | t | p | |
|
| ||||||||
| BMI | 38.09 (6.82) | 38.07 (6.97) | −0.16 | .88 | 36.73 (5.04) | 36.55 (5.26) | −1.04 | .30 |
| Restraint | 1.79 (1.32) | 1.21 (0.94) | −5.80 | < .001 | 1.92 (1.20) | 1.51 (1.13) | −3.37 | < .001 |
| Shape concerns | 3.80 (0.98) | 2.68 (1.30) | −14.35 | < .001 | 3.90 (0.95) | 2.51 (1.27) | −13.81 | < .001 |
| Weight concerns | 3.41 (1.09) | 2.48 (1.21) | −11.43 | < .001 | 3.31 (1.03) | 2.23 (1.20) | −10.07 | < .001 |
| Eating concerns | 2.30 (1.26) | 0.95 (0.94) | −15.60 | < .001 | 2.19 (1.39) | 0.65 (0.79) | −13.96 | < .001 |
| Binge-eating frequency | 21.04 (13.69) | 2.98 (6.63) | −20.22 | < .001 | 19.72 (11.54) | 3.03 (13.27) | −18.64 | < .001 |
| Depression | 1.04 (0.75) | 0.56 (0.78) | −10.70 | < .001 | 1.25 (0.70) | 0.42 (0.73) | −13.53 | < .001 |
Note. CBT = cognitive behavioral therapy, IPT = interpersonal psychotherapy, GED = general educational development, BMI = body mass index. Mixed models were estimated with random intercepts to account for non-independence of observations between timepoints. t and p values indicate the fixed effects of time on the given node.
Describing specific racial/ethnic identities is preferable to categorizing any racial/ethnic identity as “other” or “additional.” Regrettably, these data were originally merged such that people who reported a racial/ethnic identity other than White, African American, Native American, or Hispanic were coded only as “other” and we do not have the ability to determine these people’s specific racial/ethnic identities.