Dataset Information

Validation of a food frequency questionnaire for determining calcium and vitamin D intake by adolescent girls with anorexia nervosa.

ABSTRACT: Assessing calcium and vitamin D intake becomes important in conditions associated with low bone density such as anorexia nervosa. Food records that assess intake over a representative time period are used in research and sometimes clinical settings. However, compliance in adolescents can be suboptimal. This study was undertaken to determine the validity of a food frequency questionnaire (FFQ) for assessing calcium and vitamin D intake in adolescent girls with anorexia nervosa and healthy girls compared to validated food records assessing intake during a 4-day period, the hypothesis being that intake would be adequately predicted by the FFQ. Thirty-six girls with anorexia nervosa and 39 healthy girls aged 12 to 18 years completed both the food record and the FFQ. An additional 31 subjects (20 with anorexia nervosa, 11 controls) completed the FFQ, but not the food record, and one girl with anorexia nervosa completed the food record, but not the FFQ. Subjects demonstrated greater compliance with the FFQ (99%) than the food record (71%). Daily calcium and vitamin D intake calculated using the food record and FFQ did not differ, although the FFQ tended to under-report vitamin D intake corrected for energy intake. Using quartile analysis, no gross misclassification was noted of calcium or vitamin D intake calculated using the food record or FFQ in girls with anorexia nervosa. Strong correlations were observed for daily vitamin D intake derived from the FFQ vs the food record, particularly in girls with anorexia nervosa (r=0.78, P<0.0001). Less robust correlations were observed for calcium intake (r=0.65, P<0.0001). The FFQ used in this study can be effectively used to assess daily calcium and vitamin D intake in adolescent girls with anorexia nervosa.

SUBMITTER: Taylor C

PROVIDER: S-EPMC2673098 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Validation of a food frequency questionnaire for determining calcium and vitamin D intake by adolescent girls with anorexia nervosa.

Taylor Catherine C Lamparello Brooke B Kruczek Kimberly K Anderson Ellen J EJ Hubbard Jane J Misra Madhusmita M

Journal of the American Dietetic Association 20090301 3

Assessing calcium and vitamin D intake becomes important in conditions associated with low bone density such as anorexia nervosa. Food records that assess intake over a representative time period are used in research and sometimes clinical settings. However, compliance in adolescents can be suboptimal. This study was undertaken to determine the validity of a food frequency questionnaire (FFQ) for assessing calcium and vitamin D intake in adolescent girls with anorexia nervosa and healthy girls c ...[more]

PMID: 19248866

Similar Datasets

Project description:BackgroundUnderstanding motivation to change is a key issue in both the assessment and the treatment of eating disorders. Therefore, sound instruments assessing this construct are of great help to clinicians. Accordingly, the present study analysed the psychometric properties of the Anorexia Nervosa Stages of Change Questionnaire (ANSOCQ), including its relation to coping style and self-esteem.MethodsN = 92 adolescents referred to an eating disorders outpatient clinic meeting criteria for anorexia nervosa gave written informed consent to participate in this study and completed the ANSOCQ, the Eating Disorder Inventory, the Eating Attitudes Test, the Body Image Questionnaire, two questionnaires measuring Self-Related Cognitions and the Coping Across Situations Questionnaire. After a treatment period of nine months, clinical anorexia nervosa diagnosis and the body mass index were re-assessed. In addition to exploratory factor analysis, correlational analysis was used to test for the convergent validity of the ANSOCQ and logistic regression analysis was used to test its predictive validity.ResultsThe ANSOCQ had good psychometric properties. Factor analysis yielded two meaningful factors labelled as 'weight gain and control' and 'attitudes and feelings'. Internal consistencies of the two factors amounted to Cronbach's alpha = .87 and .76, respectively. Significant correlations with other scales measuring eating disorder psychopathology were indicative of meaningful construct validity. Higher motivation to change was related to higher self-esteem and a more active coping style. Higher (positive) ANSOCQ total scores predicted remission of anorexia nervosa after nine months of treatment. A higher score on 'attitudes and feelings' was a protective factor against drop-out from intervention.ConclusionsThe ANSOCQ is a clinically useful instrument for measuring motivation to change in adolescents with AN. Two factorial dimensions explain most of the variation. Self-esteem and coping style are relevant additional constructs for the understanding of the motivation to change in anorexia nervosa.Trial registrationNCT02828956. Retrospectively registered July 2016.

Project description:To examine trabecular microarchitecture with high-resolution flat-panel volume computed tomography (CT) and bone mineral density (BMD) with dual-energy x-ray absorptiometry (DXA) in adolescent girls with anorexia nervosa (AN) and to compare these results with those in normal-weight control subjects.The study was approved by the institutional review board and complied with HIPAA guidelines. Informed consent was obtained. Twenty adolescent girls, 10 with mild AN (mean age, 15.9 years; range, 13-18 years) and 10 age- and sex-matched normal-weight control subjects (mean age, 15.9 years; range, 12-18 years) underwent flat-panel volume CT of distal radius to determine apparent trabecular bone volume fraction (BV/TV), apparent trabecular number (TbN), apparent trabecular thickness (TbTh), and apparent trabecular separation (TbSp). All subjects underwent DXA of spine, hip, and whole body to determine BMD and body composition. The means and standard deviations (SDs) of structure parameters were calculated for AN and control groups. Groups were compared (Student t test). Linear regression analysis was performed.AN subjects compared with control subjects, respectively, showed significantly lower mean values for BV/TV (0.37% +/- 0.05 [SD] vs 0.46% +/- 0.03, P = .0002) and TbTh (0.31 mm +/- 0.03 vs 0.39 mm +/- 0.03, P < .0001) and higher mean values for TbSp (0.54 mm +/- 0.13 vs 0.44 mm +/- 0.04, P = .02). TbN was lower in AN subjects than in control subjects, but the difference was not significant (1.17 mm(-3) +/- 0.15 vs 1.22 mm(-3) +/- 0.07, P = .43). There was no significant difference in BMD between AN and control subjects. BMD parameters showed positive correlation with BV/TV and TbTh in the control group (r = 0.55-0.84, P = .05-.01) but not in AN patients.Flat-panel volume CT is effective in evaluation of trabecular structure in adolescent girls with AN and demonstrates that bone structure is abnormal in these patients compared with that in normal-weight control subjects despite normal BMD.http://radiology.rsnajnls.org/cgi/content/full/249/3/938/DC1.

Project description:One key symptom of anorexia nervosa (AN) is body image distortion (BID). For example, AN patients who are asked to perform body size estimation tasks tend to overestimate their body size; this is thought to indicate a distortion of the perceptive component of body image. Although BID is an important treatment objective, only few treatment approaches explicitly target body image, and even fewer target the perceptive component. Moreover, very little is known about how patients' perceptive body image changes after treatment and related weight gain. Consequently, we investigated changes of the perceptive BID in adolescent AN patients at the beginning (T1) and the end (T2) of inpatient treatment using a body size estimation task. A total of 38 AN patients performed the test for Body Image Distortion in Children and Adolescents (BID-CA) within the first 2 weeks of inpatient treatment and at the end of treatment. The results were compared to 48 healthy control (HC) participants performing the same task once. At T1, AN patients overestimated their body size more than HC, i.e., a total overestimation of 33% in AN patients vs. 11% in HC. At T2, AN patients overestimated their arm size to the same degree that they did at TI, but overestimations for the thigh and waist were reduced, and their overestimations for the waist no longer differed from the HC group. Thus, after treatment, AN patients were partly able to more realistically estimate their body size. Several factors may have influenced the observed changes in body size estimation, including task repetition, deliberate adjustment, growing into their preexisting perceptive body image through weight gain, as well as targeted and non-specific psychotherapeutic treatments. In conclusion, the perceptive BID in adolescent AN patients is persistent but also modifiable. Although diverse factors presumably play a role in changing BID, these findings suggest that AN patients may benefit from targeted treatment of BID.

Dataset Information

Validation of a food frequency questionnaire for determining calcium and vitamin D intake by adolescent girls with anorexia nervosa.

Publications

Validation of a food frequency questionnaire for determining calcium and vitamin D intake by adolescent girls with anorexia nervosa.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets