A clinical trial with a pretest and posttest control group design was used in this study. Twenty-two eligible postmenopausal women aged 45 - 60 years attending a health center in Ahvaz, Iran, in 2018 were included in this study. Inclusion criteria were having a negative body image according to the body image concern inventory (BICI) (with scores higher than 57), body mass index (BMI) of 18.5 - 30 kg/m2, a minimum of 2 years having passed since menopause, having the ability to read and write, and willingness to participate in the study. The exclusion criterion was having a history of severe psychological problems before the study, identified in interview sessions held before the start of the research project.
This study was approved by the Ethics Committee of Ahvaz Jundishapur University of Medical Sciences (code: IR.AJUMS.REC.1395.453), and the study protocol was registered on the Iranian Registry of Clinical Trials website (code: IRCT2017041029964N1). The objectives of the study were explained to the participants, and written consent was obtained from all participants. Then, the BICI questionnaire was completed by the postmenopausal women who met the inclusion criteria and were willing to participate in the study. Studies have supported the efficacy of CBT on body image, with the effect size ranging from low (d+ = 0.23) to high (d+ = 1.00) (
8). The sample size was determined based on the literature (
21) and taking into account the total score of the body image. In this study, a significant level of 0.05, power of 90%, and attrition rate of 20% were considered acceptable. The sample size in each group was 11, and accordingly, 22 subjects were invited to the study. Training and counseling sessions were held at a health care center. Participants were randomly assigned to the intervention and control groups (n = 11 per group) using a random block method with a 1 to 1 ratio using a randomized computer-generated list. Random allocation concealment was performed, and all procedures were conducted in accordance with the Declaration of Helsinki principles. Cognitive behavioral therapy sessions were also held at a health care center. The 2 groups were evaluated by the Multidimensional Body-Self Relations Questionnaire (MBSRQ). Then, the intervention group received cognitive behavioral group therapy based on the Cash 8-step model every week.
The CBT based on the Persian translation of the Thomas Cash book (
22) was designed in 8 sessions of 90 minutes. The sessions were conducted over a period of 2 months (June and July 2018) by a trained researcher (Marziyeh Hosseini) under the supervision of a psychologist.
The sessions were as follows:
Session 1: Discovering personal body image
Session 2: Understanding the origin of the body image concept
Session 3: Mindfully accepting body image experiences and implementing the mirror reflection technique
Session 4: Seeing beneath the surface of private body talk and implementing the mirror reflection technique
Session 5: Mindfully modifying mental mistakes
Session 6: Facing body image avoidance
Session 7: Erasing body image rituals
Session 8: Treating the body well
All sessions, except the eighth session, ended with a review of homework assignments and practices, as well as setting goals for the next week. No intervention was performed in the control group. After the end of the eighth session and 1 month after the therapy, both groups completed MBSRQ and BICI. To comply with ethical principles, a copy of the book was given to participants in the control group.
To collect the data, 2 questionnaires were used as the instruments of the study. These instruments are discussed in detail in the following sections.
Multidimensional Body-Self Relations Questionnaire was designed by Cash as a convenient self-reported method to evaluate body image and attitudes. This questionnaire had 46 items. In analyzing the survey data, the rating took the form of the Likert scale. Rating scales were numerically coded as (1) definitely disagree; (2) mostly disagree; (3) neither agree nor disagree; (4) mostly agree; and (5) definitely agree. The subscales included (1) appearance orientation (AO) (which is defined as the extent of investment in one's appearance and has 12 items scoring from 12 to 60); (2) appearance evaluation (AE) (which is defined as satisfaction or dissatisfaction with one's looks and has 7 items scoring from 7 to 35); (3) fitness evaluation (FE) (which is defined as feelings of being physically fit or unfit and has 3 items scoring from 3 to 15); (4) fitness orientation (FO) (which is defined as the extent of investment in being physically fit or athletically competent and has 13 items scoring from 13 to 65); (5) subjective weight (SW) (which is defined as obesity anxiety (ie, care and maintenance about weight, diet, and limited feed) and has 2 items scoring from 2 to 10); and (6) body areas satisfaction (BAS) (which is defined as satisfaction with specific areas of the body and features such as the face, weight, and muscle status; it has 9 items scoring from 9 to 45). The higher the score on MBSRQ is, the more satisfaction with the body image is indicated (
23). Multidimensional Body-Self Relations Questionnaire is a well-validated measure (
24) and has been used in many studies in Iran (
9,
25). The psychometric properties of this questionnaire were calculated and approved in Iran by Rahati (
26). They report that the Cronbach α value was 0.85 for the total of the questionnaire among 217 female subjects and was higher than 0.60 for all of the 6 subscales. They also calculated the correlation coefficient in a test-retest study with a 2-week interval on a sample of 67 individuals, indicating appropriate reliability of the scale (
26).
The other tool, BICI, was developed by Littleton et al. It consists of 19 questions, and each question has 5 options. It is numerically coded from 1 (never) to 5 (always). The total points obtained from the whole 19 questions show a minimum score of 19 and a maximum of 95. Higher scores represent higher levels of body image concern (
27). A score between 38 and 57 indicates the average degree of concern, and scores higher than 57 indicate a high degree of concern. The validity and reliability of the questionnaire were investigated and approved in different studies in Iran (
28,
29). This questionnaire has good reliability and validity indices. Its reliability was examined by the internal consistency method, and the Cronbach α coefficient was 0.93. In Iran, Mohammadi and Sajadinejad investigated the validity of the questionnaire among 209 high school students in Shiraz by split-half and internal consistency methods, and the coefficients were 0.66 and 0.80, respectively (
30).
In this study, the normality of the data was tested by the Kolmogorov-Smirnov test. The quantitative variables were described by the mean ± SD. The independent t-test, chi-square test, and Mann-Whitney U test were used to compare the groups. The Mauchly test of sphericity indicated that the assumption of sphericity was not violated (P > 0.05). Repeated measures analysis of variance was used to assess changes in each parameter during the study. P values less than 0.05 were considered statistically significant.